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QuTS hero 5.0.x

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Expansion Unit Recovery

If an expansion unit is accidentally disconnected from the NAS, for example by an unscheduled shutdown or disconnected cable, then the following changes to storage state will occur:

  • The status of all storage pools on the expansion unit will change to Error.

  • The status of all RAID groups on the expansion unit will change to Not Active.

If you encounter this situation, reconnect the expansion unit to the NAS and QuTS hero will automatically guide you through the recovery process.

You can also perform recovery manually. Go to Storage & Snapshots > Storage > Disks/VJBOD, select an expansion unit, and then click Recover to perform one of the following actions.



Reinitialize enclosure ID

Reset all expansion unit IDs, and then give each unit a new ID number starting from 1 based on the order that they are physically connected.


Use this action if the expansion unit IDs appear out of sequential order in the enclosure list.

Attach and Recover Storage Pool

Scan all free disks on the NAS and all connected expansion units for existing shared folders, LUNs, and storage pools.


Perform this action after moving disks between NAS devices.