PowerStore: Drive Addition May Cause Node Reboot on 500T

Summary: During drive addition to expand appliance capacity of a PowerStore 500T, the BMC may experience a Watchdog reset which then may lead to a node rebooting.

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Symptoms

Adding drives to expand appliance capacity can cause a single node to reboot and return to service. Capacity expansion continues during this process.

Impact: High Availability (HA) is degraded while the node reboots.

Factors Affecting the Issue

  1. Drive Slot Impact

    • Issue is mainly seen when adding a drive to slot 12 (may lead to Node A reboot) or slot 13 (may lead to Node B reboot).

  2. Timing of Drive Additions

    • Issue can also occur when adding drives in quick succession.

Cause

The Baseboard Management Controller (BMC) generates a hardware watchdog event as the drive is installed, which triggers the node reboot.

Resolution

This issue has been resolved in PowerStoreOS code streams LTS-v4.1.0.4 and v4.3.x and higher. 
Action: Upgrade to PowerStoreOS to prevent node reboots during capacity expansion.

 

Workaround: 

To avoid a service disruption for this issue, follow the process detailed in KB#000296002 PowerStore: Procedure for adding drives on 500T

 

Note: If adding drives to a PowerStore cluster at code levels below PowerStoreOS LTS-v4.1.x, also review the following KBs relating to the need to update DriveDB.json:

Contact Dell Technical Support for questions or assistance.

Reference this KB Article in the Service Request for expedited handling.

Affected Products

PowerStore 500T
Article Properties
Article Number: 000220636
Article Type: Solution
Last Modified: 22 Dec 2025
Version:  20
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