If you are upgrading from GPFS , you can choose between the following upgrade options. GPFS Administration and Programming Reference Click below to view this publication ?. File System V documentation, where you can find information about how to install, administer, maintain, and use GPFS

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For each node in the cluster, do the following steps.

Regardless of which method you are using, if you want to install and configure CES protocols after upgrading to the latest level, you must create a CES shared root file system of size 4 GB or greater.

At this point all code is at the upgraded level, but the cluster is not upgraded and new functions cannot be configured until the upgrade is completed. Operating system upgrades while upgrading from GPFS 3.

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After all the nodes in the cluster are upgraded to 4. Given the age of GPFS 3. Perform any necessary operating system upgrades.

Online upgrade, most functionality remains available Upgrading to the 5. Run the necessary platform-specific commands to upgrade GPFS. Extract the IBM Spectrum Scale installation image so that all installation files rpm, deb, bff, msi, and so on are available. You can also create this file system from multiple NSDs, each of which are replicated to help with redundancy.

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Alternatively, you can perform function additions and upgrades manually.

Upgrading from GPFS 3.5

At this point, all code 3.55 at the upgraded level, but the cluster is not upgraded and new functions cannot be configured until the upgrade is completed. Repeat the preceding steps on each node in the cluster one by one after restarting GPFS. For GPFS-only configurations, the process is now complete. After the operating system is upgraded and any required reboots are complete, follow the steps for upgrading GPFS.

NodeName is the name of the node on which the operating system upgrade will be done.

Hpfs this point, the code is at the upgraded level, but the cluster is not upgraded and new functions cannot be configured until the upgrade is completed. Re-enable the GPFS autoload setting by issuing the following command. For this upgrade path, use the following platform-specific commands instead of those listed in Step 4: Upgrading from GPFS 3.

For more information, see Setting up Cluster Export Services shared root file system. Unmount GPFS file systems on the node by issuing the following command. At this point, you can use the installation toolkit for installation or deployment of new functions and for future upgrades.

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However, due to the entire cluster being offline, it is possible to jump straight to the latest code level instead of hopping to an intermediate level, as required during an online upgrade.

IBM GPFS Administration and Programming Reference (SA) – United States

Confirm that the upgraded operating system level is one that is supported by the version of IBM Spectrum Scale to which the system is being upgraded. Offline upgrade, complete cluster shutdown This scenario is applicable if you can shut down the entire cluster and perform the upgrade. The steps in this procedure are similar to the steps in the online upgrade procedure. This file system is used for CES protocol state data and it must remain mounted and up on all protocol nodes for the protocols to function.