- Workload flexibility
- 1. Create the external user for VMware
- 2. Create the virtual machine for PureApplication Software
- 3. Export the RHEL6.x 64-bit base OS image
- 4. Create a new virtual machine
- 5. Set up the activation engine
- 6. Set up the disk images
- 7. Configure disk images for the virtual machine
- 8. Configure the VM runtime
- 9. Install PureApplication Software
- 10. Configure PureApplication Software
- 11. Discover compute resources
- 12. Discover storage
- 13. Create IP groups
- 14. Create environment profiles
- Additional configuration tasks
- Downloadable resources
- Related topics
Hosted VMware environments and recovery solutions in IBM PureApplication Platform, Part 2
Setting up a PureApplication Software workload environment
This content is part # of # in the series: Hosted VMware environments and recovery solutions in IBM PureApplication Platform, Part 2
This content is part of the series:Hosted VMware environments and recovery solutions in IBM PureApplication Platform, Part 2
Stay tuned for additional content in this series.
In Part 1 of this series, you get started with creating and deploying hosted VMware environments in PureApplication Platform. In Part 2, you set up PureApplication Software workload environments. Finally, in Part 3, you build a disaster recovery solution with PureApplication Software workload environments and PureApplication Platform.
You can use the workload environment solutions in PureApplication Platform and PureApplication Software from the V188.8.131.52 release and onward to achieve additional flexibility in how you manage workloads. This article has been updated for the V184.108.40.206 release. The additional flexibility is possible by deploying PureApplication Software or PureApplication Software Suite into PureApplication Platform. You can use this feature, for example, to isolate groups of application workloads for purposes of disaster recovery. On a single PureApplication Platform appliance, you can create many PureApplication Software workload environments. Starting with V2.2.5, multiple PureApplication Software workload environments can be created in the same Virtual Manager cloud group.
PureApplication Software is deployed into a virtual machine (VM) in the same Virtual Manager cloud group as the workload VMs that the software will manage. Therefore, the PureApplication Software will also consume memory, CPU, and storage from the cloud environment. This tutorial explains how to install and configure the PureApplication Software workload environment. It also includes guidance to help you streamline this process.
Each PureApplication Software workload environment runs in a dedicated Virtual Manager cloud group. A single PureApplication Software workload environment can manage and target deployments for multiple Virtual Manager cloud groups, if each cloud group is dedicated for use by that one PureApplication Software workload environment.
This solution has a lot of flexibility and granularity if you have enough compute nodes to host individual workload environments in separate, dedicated cloud groups and enough storage capacity to handle multiple environments and replicated volumes. Like traditional cloud groups in PureApplication Platform, each Virtual Manager cloud group requires at least a single compute node to operate. Compute nodes cannot be shared between Virtual Manager cloud groups. Separate cloud groups exist to separate and isolate workload instances from licensing, networking, compute, and similar operations. As a result, pattern-based instances that are deployed as a set of VMs in a PureApplication environment are tightly coupled with the cloud group in which they are deployed. It is not possible to move running instances and VMs between cloud groups. Instead, these patterns must be redeployed into a new cloud group.
If business application data must move between cloud groups for this redeployment, the pattern creator must use block storage volumes that are mounted to the workload VMs to contain this data. These block storage volumes can be moved between cloud groups and between PureApplication Software workload environments. When the pattern is redeployed, with new VMs, you can use an existing block storage volume, which allows movement of data between cloud groups, even when the instance and VMs are redeployed.
For disaster recovery, each PureApplication Software workload environment has separate storage volumes that can be replicated independently. Therefore, you can perform disaster recovery operations for PureApplication Software workload environments independent from any other workload environments on that system or the system that it is paired with for replication. For example, you can have two workload environments on a single system that run in separate Virtual Manager cloud groups. You can choose to configure disaster replication for these two environments separately and do not have to fail over both environments at the same time. In fact, one workload environment can stay running on the second system indefinitely. Meanwhile, the other workload environment stays on the original system. You can find more details about how the disaster recovery solution works in Part 3 of this series.
Before you begin this tutorial, you should read Part 1: Getting started with hosted VMware environments. You should follow the procedures in Part 1 so that you can set up the following items in this part:
- Create an external IP address for the VM.
- Create every Virtual Manager cloud group that the PureApplication workload environment will manage.
- Ensure that sufficient IP addresses are available in the MKS Console IP Group.
- Add at least one compute node to each Virtual Manager cloud group that the PureApplication Software workload environment will manage.
To set up PureApplication Software workload environments, you must open a web browser to the PureApplication Platform web console that will host this environment. Log in to the web console as a user with administrative access privileges.
In addition, you will make the following connections and, therefore, must be familiar with these technologies to successfully complete the procedure:
- VMware vSphere Web Client, which requires a current browser with the Adobe Flash plug-in
- Secure Shell (SSH) to an ESXi host
- SSH to the RedHat Enterprise Linux V6.x 64-bit virtual machines
- Web console for the PureApplication Software workload environment
The key steps in this tutorial require switching between consoles and SSH sessions multiple times. To simplify the terminology, we use the following names to describe the access mechanisms:
- System console. PureApplication Platform web console
- Web client. VMware vSphere Web Client
- Software console. PureApplication Software web console
- SSH compute node. SSH session to the VMware ESXi compute node that is hosting the PureApplication Software virtual machine (VM)
- SSH software. SSH session to the PureApplication Software VM
- PureApplication Software VM. The VM where PureApplication Software is installed and running
After you establish a session with these connections, keep the connections available because multiple steps use them at different times.
Create the external user for VMware
To create the external application user who is required to set up your PureApplication Software workload environment, follow the procedures in the "Configuring external access to VMware components" section in Part 1. The external application access user must be associated only with Virtual Manager cloud groups. This user must also have default permissions (not read-only) and compute node access. Therefore, select all of the Virtual Manager cloud groups that this single PureApplication Software workload environment will manage.
After you create the external user, access the VMware vSphere Web Client:
- In the system console, select System -> System Settings.
- From the list of System Settings, expand External Application Access Settings.
- Under the Actions column, click the paragraph icon (circled in the following figure) to access the required information to open a browser to the web client.
- Use the Virtual Manager entry to open a web browser
to the IP address listed in that row.
purevc: Ensure that the purevc host is mapped to the correct IP address as explained in the "Accessing VMware Virtual Center" section in Part 1.
- Click the Login to vSphere Web Client link, and enter the user name and password. To view the password, click Show Passwords above the External Application Access settings table.
The PureApplication Software workload environment will access at least two networks—the data network and the system management network—in your environment. In most cases, the PureApplication Software VM will access the data network directly and access the system management network through the existing routing from the data network. If it does not, you must define two interfaces on the PureApplication Software VM. One interface will connect to each network.
The following figure illustrates the network connectivity of the VM, including the two networking options:
- Option 1: One network interface with connectivity to customer data and management networks
- Option 2: Two network interfaces where customer data and customer management networks are separated
The preferred configuration is Option 1 because it is a simpler configuration.
To ensure proper network connectivity to the components in the rack:
- In the system console, click System -> Network Configuration.
- Expand VLANs and Links.
- Verify that the management VLAN shows the two network types. If only System Management is specified, under Actions, click the pencil icon to edit the entry.
- Select both the IP Group and System Management types.
- Save your changes.
The storage requirements for a PureApplication Software workload environment installation can be different across configurations. Several environment types are described here.
To install the PureApplication Software workload environment, you must create a minimum of two block VMware VM File Systems (VMFS):
- Image repository datastore: This datastore contains a cache of images that are used for deploying workloads. Each software installation has only one image repository that is shared across compute nodes and cloud groups.
- Deployment datastore: This datastore contains deployed VMs. The first VM that is deployed is the PureApplication Software VM. You need one deployment datastore to get started, but you can add more deployment datastores later. The initial deployment datastore must be large enough to host the PureApplication Software VM along with additional capacity that is needed for the operating system disk and other miscellaneous files.
To simplify storage configuration and to ensure that you properly size the PureApplication Software VM, choose one of the following environment types for which the storage requirements most closely match your needs:
- Development/Test: You will use the installation as a development or test environment to create, validate, and test patterns.
- Production: You will use the installation in a production environment, including environments that use disaster recovery and block storage replication of the volumes in the installation. VMware cannot replicate or clone volumes. Therefore, you need larger initial sizes because it might not be possible to expand them later.
- Constrained Storage: You will use the installation as a development, test, or production environment, but you are creating several PureApplication Software workload environments and need to conserve storage space. In this scenario, you will start with the minimum storage space required and expand the storage if required at a later date. Note: You must monitor the PureApplication Software workload environments for the CWZIP6238W and CWZIP6239E events, which will alert you to low storage conditions. The PureApplication Software console must be shut down if you need to add storage for the PureApplication Software VM. If you allow the PureApplication Software VM to run out of storage space, some or all of the PureApplication Software console may shut down automatically. Availability will be restored after storage is expanded and the VM restored. See Resizing the PureSystems Manager storage for instructions on resizing the storage.
- Constrained Storage with Temporary Installation Disk: This environment type is the same as Constrained Storage, but it reduces the storage footprint of the PureApplication Software VM by 110GB by using a temporary disk during installation.
Based on the environment type that best matches your storage requirements, you then use the corresponding storage sizes from the following table.
Table 1. Storage sizes for environment type
|Environment type||Image repository datastore size||Initial deployment datastore size*||PureApplication Software VM hard disk size|
|Development or test||300 GB||800 GB||580 GB|
|Production||2 TB||3 TB||2.1 TB|
|Constrained Storage||100 GB||400+ GB||360 GB|
|Constrained Storage with Temporary Installation Disk||100 GB||400+ GB||265 GB Installation Disk: 115 GB|
*Image repository datastore needs can vary widely depending on how many virtual images you intend to use in the environment and the size of those images. The image repository may be replaced with a larger or smaller datastore at a later time if you need more or less space for virtual images. If you have other environments already set up that will use a similar set of virtual images, you can check how much storage space is used on the image repository in that environment to select an appropriate size. See Increasing the image repository size.
Image repository: The image repository can be associated with multiple cloud groups. Other Block VMFS volumes that you create to be used as regular datastores should be associated with only one cloud group. If you create additional Virtual Manager cloud groups for this PureApplication Software instance to manage, you must update the image repository volume to be associated with the new Virtual Manager cloud group as well.
Create the virtual machine for PureApplication Software
To create the PureApplication Software VM:
- Log in to the compute node in your Virtual Manager cloud group that
you want to host the PureApplication Software VM. In the system
console, you should still see the details for your external
application accesses user ID.
- From the External Application Access Settings section that matches the compute node for the initial deploy of the PureApplication Software VM, get the compute node user ID, password, and IP address.
- Log in to the compute node by using the SSH command or an
application, such as Putty, that supports the SSH protocol.
The following example shows how to log in by using the SSH
- Change directory to the datastore (block VMFS) where you want to
create this VM. You cannot use the datastore that you created for the
- Find the Datastore name. Click Cloud -> Volumes in the system console. Then, select the block VMFS volume that you created for virtual machine deployments. The datastore name is the Datastore name property in the details for the data volume that is associated with the cloud group. In this example, the datastore name is p_9baf11f6-6d8c-4faa-b631-5458655a8ecb.
- Change directory to this datastore name. In this example, we
use SSH as shown in the following example:
- Create a temporary directory and print its location:
mkdir temp cd temp pwd
pwdcommand has the following output path, which you will need in the following sections:
Export the RHEL6.x 64-bit base OS image
For PureApplication Software V2.2.3 or later, you must run Red Hat Enterprise Linux (RHEL) Version 6.X (minimum of RHEL 6.6)
on the VM where you will install the software. One option is to use a Core
OS image for RHEL 6 from IBM that comes with a PureApplication Platform
license. You can also purchase this license separately. The
PureApplication Software installation includes sample patterns and other
pattern components, but it does not include a base OS image.
Note: If any patch is applied on top of the official RHEL fix pack releases, it will only be supported on best effort basis.
Attention: Before you begin the following steps, make sure that PureApplication Platform contains at least one conventional cloud group with at least one compute node.
To use a Core OS image based on RHEL 6 from IBM as the PureApplication Software VM operating system:
- In the system console, click Catalog -> Virtual Images.
- Click the IBM OS Image for Red Hat Linux Systems link for version 2.1.x.0.
- In the right pane, click Export.
- Specify the IP address, user ID, and password for the compute node from the External Users table that matches the user id used to log in to the compute node. The Remote path is the value returned by the ‘pwd’ command from the previous chapter.
The export takes about 10 minutes. When it is done, the IBM_OS_Image_for_Red_Hat_Linux_Systems.ova file is placed in the temporary directory on the compute node.
Create a new virtual machine
If you are not already logged in to the Virtual Center web client, log in to it now as explained in Step 2. To create a new VM:
- In the Navigator, select the Hosts and Clusters entry.
- Expand the navigation tree until you see the cluster that matches the Virtual Manager cloud group name. Select the cluster.
- On the Cluster pane, click Actions -> New Virtual Machine.
- In the New Virtual Machine pane, select Create a new Virtual Machine, and click Next.
- In the Select a name and folder pane, enter a name for the VM. This VM will be your PureApplication Software VM. Under Select a location for the virtual machine, select the folder with the cloud group name from the tree view of the environment. Click Next.
- Select the compute resource (host) that the virtual machine will be registered on. Click Next.
- In the Select storage pane, in the table, select the datastore that you created to hold data (not the datastore for the image repository). The datastore that you select must be the same one that you exported the IBM OS Image for RedHat Linux Systems to. Click Next.
- In the Select compatibility pane, click Next to accept the defaults.
- In the Select a guest OS pane, for the Guest OS Family, select Linux. For the Guest OS Version, select Red Hat Enterprise Linux6(64-bit). Click Next.
- Ensure that the amount of CPU and memory that are needed for the
PureApplication Software VM is accounted for in PureApplication
Software's placement calculations. In the Customize hardware pane, on
the Virtual Hardware tab, expand CPU
and make the following changes:
- Set the virtual sockets to 8.
- Set Cores per Socket to 1.
- Change Reservation to 4000 MHz.
- Change Limit to Unlimited MHz.
- Change Shares to Custom, and set the number of shares to 256000.
- Collapse the settings for CPU.
- Still on the Virtual Hardware tab, expand
Memory, make the following changes:
- Change RAM to 32 and the unit to GB.
- Change Reservation to 32768MB.
- Change Limit to 32768MB.
- Change Shares to Custom and set the value to 32400.
- Collapse the settings for Memory.
- Expand New Network, and select the network that corresponds to the Shared Data VLAN. To locate the network, click System -> Network Configuration -> VLAN and Links.
- Expand New SCSI controller, and for Change Type, select LSI Logic Parallel.
- Expand New Hard disk. On the far-right side of that row, click the X to delete that entry.
- Click Next.
- In the Ready to complete pane, click Finish.
Set up the activation engine
- On the compute node that you accessed by using SSH in Step 2, create the ovf-env.xml file with the following
initial contents. After you create them, you will update them (next
step). Also, before you paste this file into the vi editor on the
compute node, turn off
autoindentby using the
<?xml version="1.0" encoding="UTF-8"?> <Environment xmlns="http://schemas.dmtf.org/ovf/environment/1" xmlns:ovf="http://schemas.dmtf.org/ovf/envelope/1" xmlns:ovfenv="http://schemas.dmtf.org/ovf/environment/1" xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSettingData" xmlns:vssd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_VirtualSystemSettingData" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ovf:id="IBM OS Image for Red Hat Linux Systems/Virtual_System"> <PropertySection> <!-- Update these network settings for this virtual machine --> <Property ovfenv:key="ConfigNET.netmask.1" ovfenv:value="255.255.248.0"/> <Property ovfenv:key="ConfigNET.gateway.1" ovfenv:value="172.20.80.1"/> <Property ovfenv:key="ConfigNET.pri_dns.1" ovfenv:value="220.127.116.11"/> <Property ovfenv:key="ConfigNET.sec_dns.1" ovfenv:value="18.104.22.168"/> <Property ovfenv:key="ConfigNET.ipaddr.1" ovfenv:value="172.20.84.1"/> <Property ovfenv:key="ConfigNET.hostname.1" ovfenv:value="mysoftwarevm"/> <Property ovfenv:key="ConfigNET.domain.1" ovfenv:value="domain.com"/> <Property ovfenv:key="ConfigNTP.ntp_0" ovfenv:value="22.214.171.124"/> <!-- Set your passwords --> <Property ovfenv:key="ConfigPWD_ROOT.password" ovfenv:value="password"/> <Property ovfenv:key="ConfigPWD_USER.password" ovfenv:value="password"/> <!-- set your ssh key – optional --> <Property ovfenv:key="ConfigSSH.ssh_key" ovfenv:value="ssh-rsa [public key]"/> <!-- These do not need to be changed --> <Property ovfenv:key="License.accept" ovfenv:value="yes"/> <Property ovfenv:key="ConfigLocale.language" ovfenv:value="en"/> <Property ovfenv:key="ConfigLocale.country" ovfenv:value="US"/> <Property ovfenv:key="ConfigLocale.encoding" ovfenv:value="UTF-8"/> <Property ovfenv:key="ConfigPWD_ROOT.username" ovfenv:value="root"/> <Property ovfenv:key="ConfigPWD_USER.username" ovfenv:value="virtuser"/> <Property ovfenv:key="ConfigSSH.username" ovfenv:value="virtuser"/> <Property ovfenv:key="ConfigTZ.timezone" ovfenv:value="UTC"/> <Property ovfenv:key="vm.cpushpri" ovfenv:value="8"/> <Property ovfenv:key="ConfigNET.bootproto.1" ovfenv:value="static"/> <Property ovfenv:key="ConfigNET.iface_name.1" ovfenv:value="eth0"/> <Property ovfenv:key="ConfigNET.dnsmasq.1" ovfenv:value="true"/> </PropertySection> </Environment>
- Edit that file and update the password entries and network settings so that they match your data VLAN environment. You will use this file to establish initial network connectivity for the virtual machine. Therefore, you must ensure that the settings are correct.
- Generate an ISO image file that contains the ovf-env.xml file:
genisoimage -J -r -q -o activation.iso ovf-env.xml
The activation.iso file is created in the temp directory that you created on the datastore that contains the VM.
- Change directories to return to the root of the datastore that
contains the directories:
- Run the
lscommand to verify that you see the temp directory and a directory named after the VM that you created in Step 4.
- Move the activation.iso file to the virtual machine directory:
mv temp/activation.iso <VM_DIRECTORY_NAME>
Here, <VM_DIRECTORY_NAME> is the virtual machine directory name as in the following example:
mv temp/activation.iso TestCloud-PSM
Set up the disk images
- From your SSH session to the compute node, change directories to your new VM directory.
- If you did not yet disconnect your SSH session from the previous
section or change directories, run a
cdcommand similar to the following example, where TestCloud-PSM is the name of the VM that you created:
- Extract the two VMDK files from the
IBM_OS_Image_for_Red_Hat_Linux_Systems.ova file that you imported in
tar -xvf ../temp/*.ova RHEL65-64.vmdk RHEL65-64-flat.vmdk
- Rename and decompress each file that was extracted from the ova file:
mv RHEL65-64-flat.vmdk RHEL65-64-flat.vmdk.gz gzip -d RHEL65-64-flat.vmdk.gz mv RHEL65-64.vmdk RHEL65-64.vmdk.gz gzip -d RHEL65-64.vmdk.gz
Configure disk images for the virtual machine
Use the VMware vSphere Web Client to add the ISO and disk images to the VM configuration.
- In the Navigator, find the VM that you created as explained in Step 4. Right-click the VM and select Edit Settings.
- Modify the virtual machine to attach the activation.iso file to the
- In the Edit Settings pane, click the Virtual Hardware tab.
- Expand CD/DVD drive 1 and change the default value of Client Device to Datastore ISO file.
- In the Select File window, under Datastores,
select the datastore where the
PureApplication Software VM was installed. The contents of the
selected datastore are displayed in the Contents pane. Select
the directory that you named after the PureApplication
Software VM that you created. The Contents pane is updated
with a list of the files in the home directory of the VM.
Select the activation.iso file and click
Tip: If the activation.iso file is not displayed right away, browse to a new directory and then go back to cause a refresh.
- Back in the CD/DVD drive 1 pane, select Connect to connect this drive at power on.
- Add the extracted RHEL VMDK file as the first hard drive:
- At the bottom of the Edit Settings window, from the New device list, select Existing Hard Disk, and click Add.
- In the Select File window, under the Datastores pane, select the datastore where the VM was created. In the Contents pane, select the directory that is named after the VM. Select the RHEL65-64.vmdk file and click OK.
- Add a new hard disk large enough for PureApplication Software:
- At the bottom of the Edit Settings window, from the New device list, select New Hard Disk, and click the Add button.
- In the New Hard disk row that is displayed at the bottom of the Virtual Hardware list for the VM, change the size from 16GB to the PureApplication Software VM hard disk size from Table 1 for your environment. For example, for Development or test, use the size 580GB. Expand the details for the hard disk, and make sure that Disk Provisioning is set to Thick provision lazy zeroed.
- If you are using the Constrained Storage with Temporary Installation Disk environment type, add the temporary installation disk now using the same procedure as the previous step, but setting the size to 120GB.
- Click OK to save the settings that you made to the VM.
Configure the VM runtime
Now that you have completed the settings for the VM, power it on. Then, you can do additional configuration inside the running VM.
- In the VMware vSphere Web Client, select the VM, and select Power On to power on from the Actions menu on the VM.
- Wait a minute for the virtual machine to completely start the operating system.
- Log in to the PureApplication Software VM by using SSH as explained in
Step 2, with the values that you specified
for the password and IP address. In the sample ovf-env.xml file, the
passw0rd, and the IP address is
172.20.84.1. The following example shows the SSH login for the ovf-env.xml file:
- Prepare the RedHat Enterprise Linux operating system for the
PureApplication Software installation.
- Verify that you are logged in as the root user.
- Validate that you are logged in to the correct VM.
- Run the
lsblkcommand, and confirm that the output shows the hard disks that are configured in this example:
-bash-4.1# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 12G 0 disk ├─sda1 8:1 0 250M 0 part /boot └─sda2 8:2 0 11.8G 0 part ├─vg_root-LogVol01 (dm-0) 253:0 0 2G 0 lvm [SWAP] └─vg_root-LogVol00 (dm-1) 253:1 0 9.8G 0 lvm /sdb 8:16 0 580G 0 disk sr0 11:0 1 366K 0 rom
- Partition the sdb disk as a root user. The following example
shows both the commands and their output. This example uses logical volume sizes for the
Development or test environment type. See the PureApplication Software VM logical volume sizes column of Table 1 to get the
correct values for your environment type.
-bash-4.1# vgcreate PureApp /dev/sdb Physical volume "/dev/sdb" successfully created Volume group "PureApp" successfully created -bash-4.1# lvcreate --size 250G --name Data PureApp Logical volume "Data" created. -bash-4.1# lvcreate --size 250G --name Runtime PureApp Logical volume "Runtime" created. -bash-4.1# lvcreate --size 32G --name Temp PureApp Logical volume "Temp" created. -bash-4.1# lvcreate --size 32G --name Swap PureApp Logical volume "Swap" created.
- Set up the temporary partition:
-bash-4.1# mkfs.ext4 /dev/PureApp/Temp
- Then, format the swap partition:
-bash-4.1# mkswap /dev/PureApp/Swap mkswap: /dev/PureApp/Swap: warning: don't erase bootbits sectors on whole disk. Use -f to force. Setting up swapspace version 1, size = 33554428 KiB no label, UUID=63becdbb-4454-48c8-9347-64e5cd42a1d8
- If you are using a temporary installation disk, configure it now. The following
example shows both the commands and their output.
-bash-4.1# vgcreate PureAppInstall /dev/sdc Physical volume "/dev/sdc" successfully created Volume group "PureAppInstall" successfully created -bash-4.1# lvcreate --extents 100%FREE --name Install PureAppInstall Logical volume "Install" created. mkfs.ext4 /dev/mapper/PureAppInstall-Install
- Append the following two lines to the /etc/fstab file:
/dev/PureApp/Swap swap swap defaults 0 0 /dev/PureApp/Temp /tmp ext4 defaults 1 2
- Follow the steps in the "PureSystems Manager Operating System setup" topic in
IBM Knowledge Center. Begin at Step 1.e. (Activate the LUKS module),
and continue through to Step 3. Note the following differences between
the procedure in this tutorial and the procedure IBM Knowledge Center:
- This tutorial uses the volume group name of PureApp. The procedure in IBM Knowledge Center does not specify the volume group name but refers to the name as <volume_group_name>.
- This tutorial uses the logical volume names Runtime and Data. IBM Knowledge Center does not specify the logical volume name. Instead, it uses the value <logical_volume_name> and expects you to know the name to use.
- After you reboot the VM, log in and validate that you successfully
configured the virtual machine.
- Run the
freecommand as shown in the following example. This command shows the memory and swap information that is available to the operating system. The total column must show the correct amount of memory and swap. PureApplication Software requires the total of those two values to be at least 64GB.
-bash-4.1# free -h total used free shared buffers cached Mem: 63G 667M 62G 192K 14M 154M -/+ buffers/cache: 498M 62G Swap: 33G 0B 33G
- Run the
dfcommand to see which file system information is configured on the operating system. Validate the Size and Mounted on columns for the two luks partitions and the temp partition.
-bash-4.1# df -hP Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_root-LogVol00 9.5G 2.9G 6.2G 32% / tmpfs 32G 0 32G 0% /dev/shm /dev/sda1 239M 52M 174M 23% /boot /dev/mapper/luks-runtime 246G 60M 234G 1% /pureapp-sw-runtime /dev/mapper/luks-data 246G 60M 234G 1% /pureapp-sw-data /dev/mapper/PureApp-Temp 32G 48M 30G 1% /tmp
- Validate that each entry added to the /etc/fstab file has been properly
mounted. For each entry that was added to the /etc/fstab file, perform the following steps
that use the following entry as an example: /pureapp-sw-runtime/data /data none bind 0 0
- Change directory to the second value in the entry.
-bash-4.1# cd /data
- Run the df command against that directory.
-bash-4.1# df -h . Filesystem Size Used Avail Use% Mounted on /dev/mapper/luks-runtime 246G 60M 234G 1% /pureapp-sw-runtime
- The "Mounted on" value in the df output will match the runtime, data, or Temp filesystem as indicated by the first field in the /etc/fstab entry. In this case, the first field is "/pureapp-sw-runtime/data" so this directory has been properly mounted.
- Change directory to the second value in the entry.
- Run the
You have now set up the VM and file systems to install PureApplication Software.
Install PureApplication Software
- Create the installation directory. If you are using a temporary installation disk, use the following
-bash-4.1# cd /pureapp-sw-runtime/ -bash-4.1# mkdir install -bash-4.1# cd install/
If you are not using a temporary installation disk, use the following commands:
-bash-4.1# cd /pureapp-sw-runtime/ -bash-4.1# mkdir install -bash-4.1# cd install/
- Shut down the firewall temporarily to allow the downloads to install
on the VM. The PureApplication installation will replace the firewall
-bash-4.1# service iptables stop iptables: Setting chains to policy ACCEPT: filter [ OK ] iptables: Flushing firewall rules: [ OK ] iptables: Unloading modules: [ OK ] -bash-4.1# service iptables status iptables: Firewall is not running.
- Install the following prerequisite RPMs from the Extra
Packages for Enterprise Linux (EPEL) site:
- Download the three RPM files to the current directory.
- Use yum to install these RPMs as shown in the following
example because it has prerequisites that are available in a
local package repository:
-bash-4.1# yum install -y ./mod*.rpm
The following snippet of the command output shows the packages that were installed:
Installed: mod_security.x86_64 0:2.7.3-3.el6 mod_security_crs.noarch 0:2.2.6-3.el6 mod_security_crs-extras.noarch 0:2.2.6-3.el6 Dependency Installed: apr.x86_64 0:1.3.9-5.el6_2 apr-util.x86_64 0:1.3.9-3.el6_0.1 apr-util-ldap.x86_64 0:1.3.9-3.el6_0.1 httpd.x86_64 0:2.2.15-54.el6_8 httpd-tools.x86_64 0:2.2.15-54.el6_8 Complete!
- Complete the steps in the "Installing
PureApplication Software" topic in the IBM Knowledge
Center. Note the following changes:
- Use the /pureapp-sw-runtime/install directory (or /pureapp-sw-install directory if you are using a temporary disk) as the temporary directory in Step 2.
- After Step 2, delete the pure-app-software-version.tgz file if you are using the Constrained Storage environment type.
- Use software_system as the installation type in Step 5c.
The installer can run for several hours to upload the default content. After it is done running, you can recover space by deleting the /pureapp-sw-runtime/install directory. If you used a temporary installation disk, you can run the following commands to remove it:
-bash-4.1#umount /pureapp-sw-install -bash-4.1# vgremove PureAppInstall Do you really want to remove volume group "PureAppInstall" containing 1 logical volumes? [y/n]: y Do you really want to remove active logical volume Install? [y/n]: y Logical volume "Install" successfully removed Volume group "PureAppInstall" successfully removed -bash-4.1#rmdir /pureapp-sw-install
Then, in the VMware vSphere web client, you can remove Hard disk 3 from the VM. Select the Delete files from datastore checkbox so that the disk is actually deleted.
Configure PureApplication Software
You are now ready to configure PureApplication Software to deploy and manage workloads. You complete these steps in the Software web console.
- Open a web browser and go to the URL
<IP-address>is the IP address of the VM that you created and logged in to. In this example, the IP address is 172.20.84.1. Therefore, you go to the URL
- Log in to the web console with the administrative user and password that were specified when you installed PureApplication Software.
- Click System, and under Settings, click System Settings to go to the PureApplication Software web console.
- Expand the Cloud Management IP section, and enter the
following information for your configuration:
- Management IP. Enter the IP address of eth0 on the PSM VM. In this example, the IP address is 172.20.84.1. You cannot change this address after you set it because deployed VMs in pattern instances will use it to communicate to the pattern engine of the PureApplication Software VM. Therefore, you must ensure that this IP address is going to be used for communication back to the PSM.
- Hostname. Enter the host name that is returned by the DNS server for the Management IP address. In this example, the host name that is returned by the DNS server for the IP address 172.20.84.1 is ipas-pvm-084-001.
- Domain Name. Enter the domain name that is
returned by the DNS server for the Management IP address. In
this example, the domain name that is returned by the name
- Netmask. Enter the netmask that is used by
the Management IP address on eth0 of the PSM Virtual Machine.
In this example, the netmask is
- Default Gateway. Enter the default gateway on
the PSM Virtual Machine. In this example, the default gateway
is set to
- VLANS. Enter the comma-separated list of VLANs that can be configured in your IP groups. This list must contain the VLAN that you used for eth0 on the PSM VM. In this example, VLAN 1864 is used for creating the PSM VM.
- VLANS properly. If you use this solution for disaster recovery, enter a data VLAN that is accessible on both racks. When you specify this VLAN, it must be available on both PureApplication Platform in the current environment and on the backup PureApplication Platform rack. Also, you must deploy all of your deployments for failover to this VLAN (an IP group that is defined with this VLAN).
- After you validate that all of your settings are correct, click Save Changes.
- Expand the Virtual Center Access section and
configure the settings.
To complete the configuration settings in this section, you can get the values from the system console. Click System -> System Settings and expand External Application Access Settings. Click the details icon (highlighted in the following figure) for the user that you created to access vCenter from this PureApplication Software environment.
The External Users pane that is displayed contains the access information for the compute nodes and vCenter VM. The following settings come from the Virtual Manager row of the table.
- For the vCenter IP field, enter the information from the IP Address column.
- For the User name field, enter the information from the User Name column.
- For the Password field, enter the information from the Password column.
- Click Test Connection to validate your
settings. After a moment, a message is displayed that
indicates that the connection test was successful.
For the next two configuration settings in this section, use the VMware vCenter web console.
- For the Datacenter field, from the VMware vCenter navigator view, click Hosts and Clusters. The object under the purevc node is the name of the datacenter, which is Rack-8283_Rack64T in this example.
- For the Distributed Virtual Switch field, again in the navigator, on the Related Objects tab, select Distributed Switches. The object that appears in the table is the name of the distributed virtual switch. (In vSphere Client, go to Inventory > Networking.) The switch name is similar to the name and format of DVS-Rack-8283_Rack64T as used in this example.
- Click Save Changes to save the configuration settings in this section.
- Expand Customize Name to make naming changes to help
uniquely identify this PureApplication Software Workload Environment.
- In the System Display Name field, specify the display name for this environment to help easily identify which PureApplication Platform the workload environment has been installed on. In the following figure, the display name has been updated to reference Rack64T. This step is optional but recommended especially when configured workload environments for disaster recovery.
- If PureApplication Software V126.96.36.199 or newer was installed, validate a unique name is used in the System Unique Name field. Take special care here because this name must match the Associate System field for volumes created on PureApplication Platform that are intended to be used by this installation.
- If PureApplication Software V188.8.131.52 or newer was installed, use
the PureApplication Platform web console to navigate to the Cloud
-> Volumes page. For each volume on that page that is associated with the PureApplication Software installation, you must specify the System Unique Name in the Associate System field of the volume.
Select Save after specifying the Associate System. After setting the Associate System for each Volume that is used by the PureApplication Software workload environment, view all Volumes and validate the Associate System column contains the correct System Unique Name.
- Expand Date and Time to access the settings for the
- In the NTP server address field, enter the NTP server IP address, and click Add. Repeat this step if you have multiple NTP servers to specify.
- After you add the NTP server addresses, click Save.
- Expand Domain Name Service (DNS) to access settings
for the DNS servers.
- In the DNS service search order field, enter the DNS server IP address, and click Add. Repeat this step if you have multiple DNS servers to specify.
- After you add the DNS server addresses, click Save.
Discover compute resources
- In the upper-left corner of the software console, click IBM PureApplication Software. On the Welcome page, you see green check marks next to each step that is associated with Step 1.
- Under Step 2, validate that the first item (Connect to external virtual center server) has a green check mark, and click Discover compute resources.
- Click the eye or discover icon to begin discovery of the compute nodes.
- Wait a few minutes and then click the refresh icon.
- Enter the credentials of the compute node so that it changes from the
Discovered state to the Available state.
- Select the compute node, and then click Update.
- Enter the user, password, and IP of the compute node.
The compute node information is in the "External Application Access Settings" section of the System Settings page on the system console. Click the details icon for the user that you created to access vCenter from the PureApplication Software workload environment.
The External Users pane that is displayed contains access information for compute nodes and the Virtual Manager (vCenter). The following four settings come from the Compute Node row in this pane and match the compute node that you deployed the PureApplication Software VM to.
- For the User name field, enter the information from the User Name column.
- For the Password field, enter the information from the Password column.
- Optional: For the Location field, enter the information from
the Name column.
Although this field is optional, it is helpful in identifying which compute nodes are in use by PureApplication Software. As a best practice, enter the serial number of the compute node here.
- For the IP address field, enter the information from the IP Address column.
- Click OK to save the changes.
- Wait a minute and refresh the software console. The state of the compute node changes from Discovered to Available.
- Return to the Welcome page of IBM PureApplication Software, click Discover storage resources. You see a green check mark because discovery found the storage when it discovered the compute node. The storage volumes created for this environment are shown on the LUNs tab of the storage table.
- Click the Data Stores tab. The capacity columns in the table show that some space is used for the datastore that contains the PureApplication Software VM. The other datastore in the table was created as the image repository.
- In the Is image repository? column, select the checkbox for the datastore that is not used, but that was created for the image repository.
- Verify that you selected the correct datastore.
- Click OK in the confirmation pane.
Create IP groups
- Return to the Welcome page of IBM PureApplication and click Create
Click the plus icon to add a new IP group.
- Define the settings for this IP group. The networking settings for
this IP group must match your configuration settings in
PureApplication Platform that use the same VLAN. The In Cloud Group setting must be the
Virtual Manager cloud group that was created for this VM.
Note: The VLAN that you select for your IP groups must be shared.
- Click OK to create the IP group.
- After you create the IP group, under IP addresses, click the plus sign to add IP addresses to the IP.
- Specify a range of IP addresses, and then click
- VMs that are deployed directly to vCenter (such as the PureApplication Software VM) must have IP addresses that do not conflict with IP addresses in the IP groups that you create in this step.
- IP addresses in IP groups on PureApplication Platform must not overlap with the IP addresses that you add to the IP groups in PureApplication Software.
The IP group status changes to "Available" after the IP addresses are associated with the IP group.
Create environment profiles
- Again, on the Welcome page of IBM PureApplication Software, click Create environment profiles.
- On the Environment Profiles page, click the plus sign
to add a new environment profile.
- Specify a name for the environment profile.
- Optional: In the Description field, enter a description for this environment profile. You can leave the remaining fields at their default values.
- Click OK.
The status of the environment profile has a warning message, indicating that the cloud group is not associated yet.
- To associate the cloud group, select the new environment profile.
- For Deploy to cloud groups, click the Add more field. From the list of cloud groups that is displayed, select the cloud group. An entry for the cloud group is now listed in a table.
- Click the plus sign to expand the settings for the cloud group. The IP group that you created is listed in the settings.
- Select the checkbox next to the IP Group. The environment profile now changes from the Warning state to the Available state.
Additional configuration tasks
The following sections explain the additional tasks that you might need to finish setting up your PureApplication Software workload environment. Whether you need to follow a particular task depends on your environment and requirements. Therefore, review each of the tasks to see which ones apply to the needs of your environment.
Allocate more storage
You might need to allocate more storage to deploy VMs within the PureApplication Software installation. Create volumes that you know you will need by using this two-part procedure:
- Create the storage volumes on the web console in PureApplication Platform.
- Discover the storage volumes on the web console in PureApplication Software.
Create storage volumes
- On the PureApplication Platform web console, click Cloud -> Volumes.
- Click Create New to create a new storage volume.
- In the Create a new volume pane:
- Enter a name and description for the volume.
- For Type, select one of the following values:
- Block VMFS. Use this type to create a datastore that attaches to the compute nodes in the cloud group to contain the VMs, add-on disks, and snapshots.
- Block. Use this type to create raw storage that will be available to a VM.
- For In Cloud Group, select the Virtual Manager cloud group that the storage will be associated with. If you plan to replicate the software workload environment to another PureApplication Platform for disaster recovery, assign all of the volumes that are associated with the software environment to a volume group. In this case, select the correct volume group.
- Under Volume configuration, for Size, enter an appropriate size for the purpose of your volume.
- Click OK to save the changes and create this volume. A job starts that creates the volume in the background.
Repeat this task for additional storage as needed for your requirements.
Important: If PureApplication Platform version 184.108.40.206 or newer is installed, be sure to set the Associate System field of each volume that was created to the System Unique Name value of the PureApplication Software workload environment.
Image repository name: PureApplication Software requires an image repository that, before V2.2.3, required the name to be cache_2TB-1. Do not use this name in this environment because it will conflict with the image repository of PureApplication System.
Storage discovery in PureApplication Software
After you assign storage to a Virtual Manager cloud group in PureApplication Platform, switch to the web console for PureApplication Software.
- Click Hardware -> Storage Resource.
- Click the eye icon to discover new storage.
- After a few moments, click the refresh icon to see the new storage that was discovered.
- If the storage that was discovered is a Block volume, rename the
storage volume so that it matches the name that is used on the PureApplication Platform web console. The names do not need to be identical, but
the name must be usable to identify the volume if this environment is
part of a disaster recovery solution. To rename the volume:
- Select the name in the list of volumes.
- Click Save.
Note for 220.127.116.11 and newer: If storage is not discovered make sure the Volumes table on PureApplication Platform shows the correct Associate System name for the PureApplication Software workload environment.
When a compute node fails, you want to ensure that your workloads do not experience an outage. Two options are available to handle compute node failures. System HA is a feature supported by PureApplication Platform that reserves compute nodes in the rack and can place a compute node into any cloud group that has lost a compute node due to a failure. Compute node high availability is a feature provided by VMware that allows a compute node to be reserved at the cloud group level. A spare compute node is needed for each cloud group using compute node high availability. System HA does not require a spare compute node for each cloud group so fewer compute nodes are required. System HA does take a little longer for recovery to begin because the spare compute has to be moved to the cloud group that experienced the compute node failure.
System high availability
Starting in PureApplication Platform 18.104.22.168, virtual manager cloud groups are supported by System HA. System HA allows spare compute nodes to be placed on standby and get allocated to any configured cloud group that experiences a compute node failure. When a compute node fails in a virtual manager cloud group, a compute node in the System HA group will be moved into that cloud group so that virtual machines can be recovered.
For additional details on using System high availability, see the details in the PureApplication Platform Information Center.
Compute node high availability
When a compute node fails, you want to ensure that your workloads do not experience an outage. Therefore, you can designate a compute node as the high availability (HA) dedicated node. This way, you can reserve a compute node per cloud group as a standby node that can take over workloads when a compute node in the cloud group fails.
Turning on vSphere HA: After you complete these steps, you must turn on vSphere HA to ensure that the VM recovery works correctly. Turning on vSphere HA is required even you if you do not want to configure a spare node as a high availability dedicated node because you do not have enough capacity or you are working in a development or test environment.
For additional details on using System high availability, see the details in the PureApplication Platform Information Center.
To configure a compute node as the HA node for a cloud group:
- On the VMware vSphere Web Client, right-click the cluster and select Settings.
- On the Manage tab, under Settings, select vSphere HA. Then, in the right pane, click Edit.
- In the Edit Cluster Settings pane, select Turn on vSphere HA.
- Expand Admission Control.
- From the list of Admission control policies, select the Use dedicated failover hosts.
- Click the plus icon.
- Select the host to use as the dedicated failover host. If you have multiple hosts to choose from, select the one that has the most capacity and is empty. Click OK to save your host selection.
- Click OK to save the cluster settings.
For more information, see the "Enabling compute node high availability" topic in IBM Knowledge Center.
Create a new virtual image
Installing the PureApplication Software workload environment does not come with a base operating system virtual image. You can import the RedHat Enterprise Linux V6 64-bit virtual image (OVA image) from your PureApplication Platform as explained in Step 3. To make that image available in this installation:
- Using SSH, log in to the compute node that you used to set up the VM in Step 3.
- Change the current working directory to the same temporary directory
that you created on the datastore where you created the VM:
- Print the current working directory by running the
pwdcommand. Use this path in Step 6 of this task.
- Use SSH to log in to the PureApplication Software VM.
- Change to the installation directory:
- Download the operating system image from the ESXi. Substitute the user
ID and IP address with the values for the compute node that you logged
in to. For the path, substitute the path that is shown with the value
in step 2 in this task.
scp firstname.lastname@example.org:/vmfs/volumes/p_1000edda-a501-4fef-b243-4f7396915ea4/temp/*.ova .
When you are prompted for a password here, use the password for this compute node in the external access settings that is associated with the user ID and IP address you used.
- In the software web console, click Catalog -> Virtual Images.
- At the top of the page, click Create New.
- In the Create virtual image pane:
- Verify that Create by importing an OVA image is selected.
- For the OVA file location text box, enter
- Click OK. The import of the virtual image begins and takes about 10 minutes to complete.
- After the image is imported, click the new virtual image. You must accept the licenses that are associated with this virtual image before you can use the virtual image.
- In the details view of the virtual image in the right pane, for License agreement, click accept.
- In the pane that shows the licenses that are associated with the
virtual image, accept each license.
The files in the temporary directory on the compute node are no longer needed and must be cleaned up to allow PureApplication Software workload environments to make full use of the datastore.
- In the SSH session for the compute node, remove only the temporary
directory that was created and its contents:
rm -rf /vmfs/volumes/p_9baf11f6-6d8c-4faa-b631-5458655a8ecb/temp
Clean up the production workload environment
You can remove an entire workload environment that is in production. If you set up the environment previously in disaster recovery, before you complete this task, you must complete the steps as explained in Part 3.
- Stop all the workload instances from the software web console.
- Click Patterns -> View All.
- From the four tables that are shown that contain pattern instances for each pattern type, select an instance from one of the tables. The pattern types that you can choose from are Virtual Applications, Virtual Systems, Virtual Systems (Classic), and Shared Services.
- Click Stop in the details view to stop the instance. Stop the other instances of that same type.
- Repeat these steps for each pattern type. Wait for all of the instances to finish stopping.
- Store all of the VMs by using the software web console:
- Click Patterns->View All. All virtual machines should be in the Stopped state.
- One at a time, select each stopped VM, and click Store next to the Status field.
- In the confirmation pane, click Store to proceed with storing the instance. Notice that Virtual System Classic instances show the Store button in the list of actions for the instance instead of next to the Current status.
- Verify that all the VMs, except the PureApplication Software VM, are marked as Stored in the Virtual Machines view in PureApplication Software for the environment. (In the vSphere Web Client, the only registered VM is the PureApplication Software VM.)
- Run SSH to log in to the PureApplication Software VM as root (if the
root password is known) or as admin_shell with the PureApplication
Software admin password. Then, run
psm shutdownto turn off the software VM in a clean manner.
$ ssh email@example.com_shell@172.25.127.1's password: Welcome to the IBM PureApplication System Administrative Interface PureApplication>psm shutdown Starting to shutdown the local PureSystems Manager... Broadcast message from admin_shell@ipas-vm25-127-001(unknown) at 17:50 ... The system is going down for power off NOW! Connection to 172.25.127.1 closed by remote host. Connection to 172.25.127.1 closed.
- In the vSphere Web Client, select the PureApplication Software VM that
is now stopped.
- Remove this VM from inventory. Right-click the VM and select Remove from Inventory.
- In the Confirm Remove pane, click Yes.
Other VMs in the cluster: If any other VMs are still listed under this cluster, stop and remove them from inventory, too.
- In the vSphere Web Client, refresh the view, and validate that no VMs are registered.
- On the PureApplication Platform web console that is hosting the
- Click Cloud -> Volumes.
- Find all of the volumes that were used in the environment. Click the check box next to their name, and then click the trash can icon above the table to delete them.
- In the Batch Action pane, click Delete to validate the deletion of multiple volumes.
Cleaning up from a disaster recovery practice failover: If the practice environment is no longer needed, make sure that the volumes that are chosen are the clones. They cannot be the replicating volumes that are still being synchronized with the production environment.
- On vSphere Web Client, on each of the compute nodes in the Virtual
Manager cloud groups, verify that all the storage is removed, except
for the 5.2 GB boot LUNs for the ESXi. To find the storage devices:
- Select the compute node.
- On the Manage tab, select Storage to see the list of storage devices.
- In the vSphere Web Client, select each cluster, and then turn off
Select the cluster. On the Manage tab, under Settings, select vSphere HA from the list of Services.
If you see the "vSphere HA is Turned ON" message at the top of the details view, click Edit, and in the Edit Cluster Settings pane, expand Admission Control. Ensure that the Admission control policy is set to Do not reserve failover capacity.
- Optional: If you no longer need the cloud groups, delete the compute nodes from the Virtual Manager Cloud Groups and the Virtual Manager cloud groups.
By completing the steps in Part 2 of this series, you have installed a working PureApplication Software environment on to PureApplication Platform. This PureApplication Software environment is fully configured and is ready to be used to develop, deploy, and manage patterns. For more information about using and administering PureApplication Software, see the IBM PureApplication Software for x86 V2.2.5 documentation in the IBM Knowledge Center.
You can design disaster recovery and backup solutions around using this software environment on PureApplication Platform. Part 3 of this series explains a disaster recovery solution for this environment.
The authors thank Kevin Cormier, Larry Hamann, Jessica Stevens, Anilkumar Hegde, and Joe Wigglesworth for reviewing this article.