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Chapter 7 Thin Provisioning Pool Management
7.2 Functions in the Action Area for Thin Provisioning
ETERNUS Web GUI User’s Guide
Copyright 2013 FUJITSU LIMITED P2X0-1090-10ENZ0
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Available Stripe Depth value
The following table shows the available Stripe Depth value for each RAID type.
Restrictions for Stripe Depth modification
The following restrictions are applied for RAID groups for which the Stripe Depth value is changed.
• Stripe depth for RAID groups that configure the existing TPPs cannot be changed.
• When selecting drives automatically to create a TPP, the Stripe Depth cannot be changed.
7.2.2 Delete Thin Provisioning Pool
This function deletes a Thin Provisioning Pool.
The procedure to delete a Thin Provisioning Pool is as follows:
Procedure
1 Select the TPP to be deleted (multiple selections can be made) and click [Delete] in
[Action].
→ A confirmation screen appears.
RAID type Drive configuration (*1) Available Stripe Depth value
Mirroring (RAID1) 1D+1M –
High Performance (RAID1+0) Any 64KB, 128KB, 256KB, 512KB, 1024KB
Striping (RAID0)
High Capacity (RAID5)
2D+1P – 4D+1P 64 KB, 128 KB, 256 KB, 512 KB
5D+1P – 8D+1P 64 KB, 128 KB, 256 KB
9D+1P – 15D+1P 64 KB, 128 KB
High Reliability (RAID6) Any 64 KB
• TPPs that have volumes registered cannot be deleted. When deleting a TPP, delete the volumes
beforehand. To delete a volume, refer to "5.2.2 Delete Volume" (page 112)
.
• This function cannot be used under the following conditions:
- When no TPP is registered
- When all the TPPs have volumes registered
After deleting a TPP, all the RAID groups that configure the TPP are also deleted.