Preparing systems for migration
Use the following prerequisites and recommendations to ensure a successful migration to IBM Power for Google Cloud (IP4G).
For AIX systems, ensure that the operating systems are running the following minimum versions:
| AIX Version | Minimum TL/ML | Notes |
|---|---|---|
| 5.3 | 5300-12-04 | Only supported within a Versioned WPAR |
| 7.1 | 7100-05-06 | |
| 7.2 | 7200-05-01 | |
| 7.3 | 7300-00-01 |
Additional software requirements:
- The devices.fcp.disk.ibm.mpio package must not be installed. Uninstall it if necessary.
Additional recommendations:
- Install cloud-init. This can be done using dnf, yum, or RPM. There are several prerequisites to install for cloud-init. The cloud-init software package is required to leverage some features. Those features include:
- Image capture and deploy.
- Automatic configuration of IP addresses, through the IP4G interface.
- Update MPIO settings for each disk to set algorithm to shortest_queue or round_robin:
chdev -P -l hdiskX -a algorithm=shortest_queue -a reserve_policy=no_reserve - Reboot for the attribute changes to take effect.