PowerStore: Pre upgrade health check (PUHC) to detect if the SdnasLastProcessedEventId number is large enough to cause an Out of Memory issue.

Pre upgrade health check (PUHC) fails with the following error: "Most recent NAS event id is too large. Please contact your service provider. KB#000227865 (off_release_sdnas_last_event_id_check)" Error code: 0xE10050060400

The health check is an off-release PUHC check that is contained in the Health Check thin package. See the Additional Info section of this article for information about the Health Check thin package.

As seen from the PowerStore Manager user interface (UI):

Following an upgrade to PowerStoreOS version 4.0.0.0, in an environment where there are many NAS replication events, the last processed event ID becomes too large. In such case, an internal data structure may allocate a large amount of memory and cause the Control Path (CP) to encounter an Out of Memory (OOM) condition and restart. This CP OOM condition results in loss of PowerStore Manager (GUI) access. Furthermore, file replication sessions remain in a System Paused state until the issue is resolved. 

Note: This issue only impacts Unified systems with File replication.

To resolve this issue, contact technical support for assistance. Reference KB# 000227865 for expedited attention and resolution.

KB 000192601 PowerStore: How to Check the Health of the Cluster Before Software Upgrade Using Pre-Upgrade Health Check and System Check.
 

KB 000214752 PowerStore: Landing Page for In Market (off-release) System Health Checks lists all the health checks in the Health Check thin package.