1. Oracle ZFS Storage Appliance Customer Service Manual, Release OS8.8.x
  2. Upgrading the Software
  3. Preparing for a Software Upgrade

Preparing for a Software Upgrade

Before you upgrade the software, perform the following actions for standalone or clustered Oracle ZFS Storage Appliance controllers.

During the update process, some protocols may experience an outage. See "Related Topics" for more information.

Note:

Some selected SSL/TLS protocol versions and/or ciphers are removed after a software upgrade if they are no longer supported. If all previously configured protocol versions and/or ciphers are removed after an upgrade, you are prompted to change the settings or confirm the action and use default settings.

  1. If not already completed, verify your current software version.

    • In the BUI, from the Maintenance menu, select System.

    • In the CLI, go to maintenance system updates and enter show.

  2. If not already completed, remove extraneous system updates. See Removing System Updates - BUI, CLI.

  3. Check the most recent release notes for additional preconditions that should be observed for the software release. If skipping some software releases, also review the release notes from all applicable previous releases. See My Oracle Support document Oracle ZFS Storage Appliance: Software Updates (2021771.1).

  4. Disable non-critical data services. These services may include replication, NDMP, shadow migration, or others. Disabling these services can shorten the upgrade time, and ensures that the system has a minimal operation load during the update. See Disabling a Service - BUI, CLI.

  5. Create a backup copy of the management configuration to minimize downtime in the event of an unforeseen failure. See Creating a Configuration Backup - BUI, CLI.

  6. Ensure that any resilvering and scrub operations have completed.

    • In the BUI, from the Configuration menu, select Storage, and check the STATUS column next to each pool.

    • In the CLI, go to configuration storage, enter set pool= and the name of the pool you want to check, and then enter show.

      The scrub property indicates whether scrub or resilver operations are active or completed.

  7. Ensure that there are no active problems.

    • In the BUI, from the Maintenance menu, select Problems.

    • In the CLI, go to maintenance problems and enter show.

    For more information, see Viewing Active Problems.

  8. Perform a health check. See Checking System Health - BUI, CLI.

    A health check is automatically run as part of the update process, but should also be run independently to check storage health prior to entering a maintenance window.

  9. Schedule a maintenance window of at least one hour to allow for disruptions in storage performance and availability during update.

Next Steps

Take one of the following next steps:

Related Topics