Checking the hardware prerequisites
Ensure that your environment meets the hardware prerequisites for your IBM® Cloud Orchestrator installation.
IBM Cloud Orchestrator is installed on one or two IBM Cloud Orchestrator Servers depending on the topology you chose. The IBM Cloud Orchestrator Server can be a virtual machine or a physical server, and must meet the following minimum hardware requirements.
| Server | Processor (vCPU) | Memory (GB) | Total free hard disk space (GB) | Free hard disk space by partition (GB) | |||
|---|---|---|---|---|---|---|---|
| / | /home | /opt | <TMP_DIR> | ||||
| IBM Cloud Orchestrator Server | 4 | 8 | 66 | 10 | 10 | 36 | 20 |
| IBM Cloud Orchestrator Server in a high-availability topology | 4 | 8 | 68 | 10 | 2 | 46 | 20 |
| IBM Cloud Orchestrator Keystone topology | 4 | 8 | 66 | 10 | 10 | 36 | 20 |
| Server | Processor (vCPU) | Memory (GB) | Total free hard disk space (GB) | Free hard disk space by partition (GB) | |||
|---|---|---|---|---|---|---|---|
| / | /home | /opt | <TMP_DIR> | ||||
| IBM Cloud Orchestrator Server | 4 | 8 | 60 | 10 | 2 | 28 | 20 |
| IBM Cloud Orchestrator Server in a high-availability topology | 4 | 8 | 65 | 10 | 2 | 30 | 20 |
| IBM Cloud Orchestrator Keystone topology | 4 | 8 | 60 | 10 | 2 | 28 | 20 |
Disk planning considerations:
- The specified hard disk space is the minimum free space that is required on the server before the IBM Cloud Orchestrator installation. Ensure that the hard disk has sufficient space for the required partitions.
- The specified hard disk space is for an installation in the default directories. The /opt value includes 16 GB for the installation files, which can be deleted after the installation completes successfully. If you install in other directories, ensure that you have sufficient space in those directories.
- The installation directory (/opt/ibm/ico by default) must not be a symbolic link.
- Extra space might be required on the /home partition after a period of time, depending on database size. Monitor the partition size. Use Logical Volume Manager (LVM) to manage the partition so that you can extend the size if required.
- Create the <TMP_DIR> on both the primary and secondary nodes with correct privileges. The default location for <TMP_DIR> is /tmp/ico. The <TMP_DIR> directory must not be mounted with the noexec, nodev, and nosuid options during the installation procedure. You can change the <TMP_DIR> directory configuration after IBM Cloud Orchestrator is installed.
Note: For the hardware prerequisites of the OpenStack environment, check either the IBM Cloud Manager with OpenStack prerequisites (at http://www-01.ibm.com/support/knowledgecenter/SST55W_4.3.0/liaca/liacasoftware.html) or refer to the documentation of your vendor-specific OpenStack distribution.