Updating the firmware in NetBackup Flex Scale clusters using HPE iLO
Before you begin the firmware upgrade process, ensure that all the nodes in the cluster are up. Veritas recommends that you install the firmware packages that are downloaded from the Veritas website. After the upgrade is complete, ensure that the firmware version of the appliance components is updated to the latest versions as listed as on the SORT Appliance Compatibility List website (https://sort.veritas.com/netbackup/acl).
During the firmware upgrade, the node is restarted using the media that contains the firmware update package and again after the upgrade is complete. All the infrastructure components in the cluster must have the same firmware version.
You can upgrade the firmware using the rolling or the parallel method. In a rolling firmware upgrade, firmware on each node is upgraded successively. During parallel upgrade, firmware on all the nodes is upgraded successively.