PowerStore: DAE Expansion requires escalation following NDU to PowerStoreOS 2.1

Summary: PowerStoreOS 2.1 introduces a possible issue for adding a new DAE following NDU from any previous release to 2.1. This issue may lead to various issues depending on the way the user adds the new DAE. ...

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Symptoms

This issue only affects users who upgraded to PowerStoreOS 2.1 and plan to add a new DAE enclosure.
 
Scenario Procedure Followed User Impact
Adding First DAE Enclosure
  • DAE contains drives.
  • All SAS cables are connected before DAE is powered on.
Note: This is the official procedure for adding the first DAE enclosure.
  • One PSU shows empty in the PowerStore Manager.
  • Peer PSU shows uninitialized in PowerStore Manager.
  • PSU firmware upgrade of newly added DAE is blocked.
  • No Alert is raised for DAE PSU issues or AC issues.
  • Drives are integrated into DRE (RAID Subsystem).
  • Potential DU if AC is lost on DAE PSU.
  • If Both nodes reboot, system does not start.
Adding an additional DAE Enclosure
  • DAE with drives is powered on.
  • DAE is connected using single path.
  • DAE is connected using second path.
Note: This is the official procedure for adding an additional DAE enclosure.
  • PSU shows healthy in PowerStore Manager.
  • Internal PSU state is uninitialized.
  • PSU firmware upgrade of newly added DAE is blocked.
  • No Alert is raised for DAE PSU issues or AC issues.
  • Potential DU if AC is lost on DAE PSU.
  • If Both nodes reboot, system does not start.
  • Log flood
Adding an Empty DAE Enclosure
  • Empty DAE is powered on.
  • DAE is connected to one Node.
  • 30 seconds have elapsed before DAE is connected to the other node.
  • This scenario may be more common with APEX users.
  • This issue most likely occurs when adding an additional empty DAE and not the first DAE in the appliance.
  • Internal Software PANIC may lead both nodes to reboot in tandem.
  • Due to both nodes offline concurrently, user may experience DU.

Cause

The cause is a software issue.

Resolution

This issue is resolved in PowerStoreOS 2.1.1.

Workaround: 
Escalate to technical support for a workaround before adding a new DAE enclosure if upgrade to PowerStore 2.1.1 is not possible.

Affected Products

PowerStore
Article Properties
Article Number: 000198829
Article Type: Solution
Last Modified: 13 Jun 2025
Version:  6
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