5.1 NOAM Pre-Upgrade Checks and Backup

The procedures in this section perform health checks and backups to prepare the NOAM NE for upgrade. These procedures must be run on the active NOAM.

Note:

• These procedures may be executed outside of the maintenance window, but should be executed within 6 to 8 hours before NOAM Upgrade procedure.
• If syscheck fails on any server during pre-upgrade checks or in early checks stating that cpu: FAILURE:: No record in alarm table for FAILURE!, see Workaround to Resolve syscheck Error for CPU Failure procedure.
• Increase the Maximum Number of Open Files As the number of servers in the topology grows, so does the need for additional files to handle data merge to the NOAM. This procedure checks the number of files currently in use, and, if necessary, increases the maximum number of open files. See Increase Maximum Number of Open Files to increase the maximum number of open files.