PowerStore: Pre upgrade health check (PUHC) to detect OOM override for Data Path Memory
Summary: The Pre upgrade health check (PUHC) off_release_dp_mem_override_file_exists detects the presence of an existing DP memory override file to prevent NDU failures during upgrades to PowerStoreOS version 4.0.x ...
Symptoms
Pre upgrade health check (PUHC) fails with the following error: "Data Path memory override file exists. Please contact your service provider (off_release_dp_mem_override_file_exists)".
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):
Cause
The DP memory override file is not properly handled by the system, causing NDU to fail. This issue is related to the NVMe Expansion enclosure Out Of Memory (OOM) issue.
The NDU process fails when the system has a "DP memory override" file and the user attempts to upgrade. To prevent NDU failures, it is essential to detect and resolve the Data Path (DP) memory override issue.
Resolution
To resolve this issue, contact technical support for assistance. Reference KB# 000271492 for expedited attention and resolution.
Additional Information
KB 000214752 PowerStore: Landing Page for In Market (off-release) System Health Checks lists all the health checks in the Health Check thin package.