PowerStore: A healthy DIMM module in an NVMe expansion enclosure may be marked as missing/failed

Summary: PowerStore Manager UI may falsely report multiple NVMe expansion DIMMs as failed/missing/disconnected.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
Check out other resources

Symptoms

Following NVMe expansion Access Module (SAM) reboot or replacement, on rare occasions some DIMMs may report as failed or missing.
This issue has no other impact to the customer. It affects visibility only.

This issue only affects PowerStoreOS 3.0.x and 3.2.x appliances attached to NVMe enclosures.

Cause

In PowerStoreOS before 3.5, only Node A can query for the health of DIMM information. To query the DIMM status of peer controllers, the Access Module uses a communication channel to the peer controller. Due to a firmware issue, this channel may timeout on rare occasions, leading to inconsistent information.

Resolution

Improvements have been introduced with PowerStoreOS 3.5.0.

Additional improvements are planned for future releases.

Workaround

If the appliance is affected by this issue contact technical support support for assistance, and upgrade to the latest code.

Affected Products

PowerStore
Article Properties
Article Number: 000204824
Article Type: Solution
Last Modified: 13 Jun 2025
Version:  6
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.