Applying maintenance to your IBM Storage Scale system

Before applying maintenance to your IBM Storage Scale system, there are several things you must consider.

Remember that:
  1. There is limited interoperability between IBM Storage Scale 5.1.x nodes and nodes running IBM Storage Scale 5.0.y. This function is intended for short-term use. You do not get the full functions of IBM Storage Scale 5.1.x until all nodes are using IBM Storage Scale 5.1.x.
  2. Interoperability between maintenance levels is specified on a per-maintenance-level basis. See the IBM Storage Scale FAQ in IBM® Documentation.
  3. When applying maintenance, on the node being upgraded, the GPFS file systems need to be unmounted and GPFS must be shut down. Any applications by using a GPFS file system must be shut down before applying maintenance to avoid application errors or possible system halts.
    Note: If the AIX® Alternate Disk Install process is used, the new image is placed on a different disk. The running install image is not changed, and GPFS is not shut down. The new image is not used until the node is rebooted.
  4. For the latest service information, see the IBM Storage Scale FAQ in IBM Documentation.

To download fixes, go to the IBM Support Portal: Downloads for General Parallel File System (www.ibm.com/support/entry/portal/Downloads/Software/Cluster_software/General_Parallel_File_System) and obtain the fixes for your hardware and operating system.