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To update any CSN implementation, download and use the CSN 8.3 bundle from the Downloads section on the DataCore Support Portal.

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  1. To identify configuration issues for the upgrade, download and run the latest Storage Settings Checker, which is bundled with the Swarm Support tools. With help from Support, address any setting issues (such as deprecations and new requirements) that the report surfaces.

  2. If you have ever customized the /etc/caringo/netboot/netboot.cfg file (such as for "gateway" or "kernelOptions"), make a record of your non-default parameters.

  3. Download the latest CSN bundle from the Downloads section on the DataCore Support Portal.

  4. Expand the bundle on your CSN server.

  5. Remove the yum lock before running the script:

    Code Block
    languagebash
    yum remove yum-plugin-versionlock


  6. Run the CSN's install script from a terminal console, or run using SSH by adding the --viassh flag:

    Code Block
    languagebash
    ./caringo-csn-bundle-install.sh --viassh


  7. The install script ensures that the Swarm cluster.cfg is current with Swarm 9, but the script may reverse some changes required for Swarm 11. Be sure to verify the following before rebooting the nodes:
    In the cluster.cfg, modify the security and SNMP users to make them Swarm 10+ compatible. See  See Defining Swarm Admins, Swarm Users, and Swarm Passwords.

    • Remove the “snmp” user from the administrators line

    • Remove security.operators

    • Add snmp.rwCommunity and snmp.roCommunity

  8. Verify that any customizations you needed for /etc/caringo/netboot/netboot.cfg (such as for "gateway" or "kernelOptions") are present.

  9. The install script restores the defaults in /etc/rsyslog.conf for where log files are stored. If you had changed the log location, reapply your changes after running the script.

  10. From the Netboot page of the CSN Console, select the new Swarm version.

    Info
    titleImportant
    This step is essential because the Swarm configuration values in the CSN may only be compatible with the newer Swarm software included in the CSN ZIP installation. Older Swarm versions may not boot with newer configuration parameters that are not recognized.


  11. From the Swarm UI or legacy Admin Console, reboot the whole cluster at once or do a rolling reboot. As directed by Support, you can use the Support Tools bundle script swarmrestart to perform a rolling reboot.

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