Dell Unity: How to Reboot a Storage Processor (User Correctable).

Summary: How to safely reboot a Storage Processor.

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.
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Instructions

Rebooting a Storage Processor (SP) can safely resolve minor problems with the SP, its components, or the system software on the SP.

CAUTION 
When an SP reboots, it stops servicing I/O to hosts. In virtual deployments, data is unavailable during an SP reboot. In physical deployments, all NAS servers on the SP fail over to the other SP, if it is healthy. By default, when the SP has finished rebooting, the NAS servers fail back to it. If the Failback Policy is disabled, all NAS servers owned by the rebooting SP will not failback automatically. Once the SP is back online, NAS Servers will remain on the peer SP. Performance can be impacted when all NAS servers reside on a single SP. You can manually fail back the NAS servers when both SPs are online.

On Unisphere:

1.Execute the Reboot task and confirm.
2.Wait around 20 minutes while the SP reboots.
3.SP reboot is completed when the Mode field displays Normal.
   Bear in mind that the Unisphere UI may not refresh automatically. If prompted, reload the Unisphere UI. Or reload the UI manually.
   In virtual deployments, you can monitor the reboot by using the VMware console. For information, see the VMware documentation.
VMware console


On SSH:

  1. Issue the command: svc_shutdown --reboot spx , where spx is spa or spb, depending if the SP to be rebooted is SP A or SP B.
  2. SP Boot can be monitored from the surviving SP with the following command: svc_diag --monitor-peer  
  3. The following KB article can be followed for further information on how to monitor the SP boot sequence.

Additional Information


 

Affected Products

Dell EMC Unity Family

Products

Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity Family, Dell EMC Unity Hybrid
Article Properties
Article Number: 000004451
Article Type: How To
Last Modified: 11 Apr 2025
Version:  5
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