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QTS 5.0.x

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Removing the Ultra-High Speed Tier

Removing the ultra-high speed tier converts a Qtier storage pool into a regular storage pool.


You can only remove the ultra-high speed tier if the allocated storage pool space is less than the remaining storage pool capacity (Total storage pool capacity - Ultra-high speed tier capacity = Remaining capacity).


This feature is useful in the following situations:

  • You want to use the SSD drives for another purpose.

  • You want to increase the amount of SSD over-provisioning in the ultra-high speed tier.

  • You want to change the RAID configuration of the ultra-high speed tier.

  1. Go to Storage & Snapshots > Storage > Storage/Snapshots.
  2. Select a Qtier storage pool.
  3. Click Manage.

    The Storage Pool Management window opens.

  4. Click Remove and then select Remove Ultra-High Speed Tier.

    The Ultra-High Speed Tier Removal Wizard window opens.

  5. Click Next.
  6. Confirm that you want to remove the remove ultra-high speed tier.
  7. Click Next.

    The storage pool will be inaccessible while QTS removes the ultra-high speed tier. This process might take a long time.

  8. Click Finish.

QTS creates a background task. The status of the storage pool changes to Removing SSD Tier....