IBM Tivoli Storage FlashCopy Manager for UNIX and Linux, Version 4.1

Configuring for remote mirroring

When you configure Tivoli® Storage FlashCopy® Manager, you can set the configuration parameters to create snapshots by using target volumes of remote mirroring relationships. These target volumes are used to create application consistent snapshot backups.

Before you begin

Before, you configure Tivoli Storage FlashCopy Manager to use target volumes that are associated with remote mirroring one of the following technologies must be deployed:

SAN Volume Controller or Storwize® V7000 Global Mirror and Metro Mirror
IBM® XIV® Storage System Synchronous Remote Mirroring and Asynchronous Remote Mirroring

Procedure

To configure Tivoli Storage FlashCopy Manager with SAN Volume Controller or Storwize V7000 Global Mirror and Metro Mirror, complete the following steps:
1. On the SAN Volume Controller or Storwize V7000 system, create a partnership between the primary and auxiliary cluster. For example, you can run the following commands from the command-line interface:
```
ssh -i/<dir>/ssh-identity <username>@<hostname or ip_primary_cluster> 
	svctask mkpartnership -bandwidth <bandwidth_in_mbps> <remote_cluster_name 
	or remote_cluster_id>
```
2. Start the Global Mirror and Metro Mirror relationship by using either the graphical user interface or command-line interface. If you use the command-line interface, the following commands are provided as an example:
```
ssh -i/<dir>/ssh-identity <username>@<hostname or ip_primary_cluster> 
	svctask chpartnership -start <remote_cluster_name or remote_cluster_id>
```
3. Verify the following information about the environment:
  - Production volumes are on the primary storage system.
  - Production volumes are in a remote mirror relationship with the remote volumes that are either in the auxiliary cluster, or in the same cluster. All the remote mirror relationships are defined in a consistency group.
4. Run the setup script to configure a dedicated device class for the snapshot backups on the remote cluster. When you configure the new DEVICE_CLASS section with the setup script, look for the following prompt:
```
Is the FlashCopy/Snapshot taken from the mirror volumes {COPYSERVICES_REMOTE}.
```
  Enter yes. The COPYSERVICES_REMOTE_SERVERNAME, COPYSERVICES_REMOTE_USERNAME, and TAKEOVER_HOST_NAME parameters are also required for remote mirroring.
5. On the remote cluster of the SAN Volume Controller or Storwize V7000, specify for each source the corresponding FlashCopy target volumes. To specify the FlashCopy target volumes, use one of the following options:
  - Parameter TARGET_SETS with VOLUMES_FILE. For example:
```
TARGET_SETS VOLUMES_FILE
VOLUMES_FILE /db2/DS0/acs/volumes/STANDARD_gm.fct
```
  - Parameter TARGET_SETS with TARGET_NAMING. For example:
```
TARGET_SETS dc2 dc3 dc4 dc5
TARGET_NAMING %SOURCEx%TARGETSET
```
To configure Tivoli Storage FlashCopy Manager with XIV® Synchronous Remote Mirroring and Asynchronous Remote Mirroring, complete the following steps:
1. Define a coupling between peer volumes on the master and slave XIV systems, which creates a mirror relationship between the two.
2. Activate the XIV remote mirror couplings.
3. Define a coupling between peer consistency groups on the master and slave XIV systems, which creates a mirror relationship between the two.
4. Add volume mirror couplings to the consistency group couplings.
5. Run the setup script to configure a dedicated device class for the snapshot backups on the remote cluster. When you configure the new DEVICE_CLASS section with the setup script, look for the following prompt:
```
Is the FlashCopy/Snapshot taken from the mirror volumes {COPYSERVICES_REMOTE}.
```
  Enter yes. The COPYSERVICES_REMOTE_SERVERNAME, COPYSERVICES_REMOTE_USERNAME, and TAKEOVER_HOST_NAME parameters are also required for remote mirroring.
At the end of the setup script configuration process, verify the user name and password. When you see the following prompt, enter yes:
```
Do you want to continue by specifying passwords for the defined sections?
```

Example

The following information is provided as an example of how a team can complete asynchronous remote mirror configuration across two sites:

To configure Tivoli Storage FlashCopy Manager with IBM XIV® Storage System with Asynchronous Remote Mirroring at both sites, certain ports must be open within the firewalls:

On the production system, the production host, backup host, and Primary XIV system must have ports open within the firewall.
On the takeover system, the takeover host, backup host, and Secondary XIV system must have ports open within the firewall.

For both the Primary and Secondary sites, the following ports must be open within the firewall:

TCP port 3260 (iSCSI) open within firewalls for iSCSI replication
Ports: http, https, ssh, and telnet
TCP/IP ports: 55697, 5997, 5998, and 7778

All ports must be bidirectional.

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