With this product, it is possible to manage the storage device's Thin Provisioning. It is possible to operate with the same operability without being aware of restrictions according to type of storage device and model.
The target device is selected with Web Console, and processing is selected from the Action pane.
The executable operations are as follows:
Display the Thin Provisioning Pool
Display the Thin Provisioning Pool status
Change the Thin Provisioning Pool threshold value
Create/Delete the Thin Provisioning Pool
Display the Thin Provisioning Pool Capacity graph
Expand the Thin Provisioning Pool Capacity
Format the Thin Provisioning Pool
Enabling/Disabling Thin Provisioning Pool Deduplication/Compression
Display the Thin Provisioning Pool Deduplication/Compression status
Display the Thin Provisioning Pool Deduplication/Compression Capacity reduction rate
The following information can also be displayed in a graph using the Dashboard. Refer to "Operations for Capacity" in the ETERNUS SF Web Console Guide for details.
Thin Provisioning Pool capacity
TPV capacity
NAS file system capacity
When you create a Thin Provisioning Pool, Deduplication or Compression of Thin Provisioning Pool can be enabled. When Deduplication or Compression is enabled, Container volume and Block Map volume are automatically created. In addition, the capacity reduction rate is displayed. It is automatically updated every hour.
If you delete the Thin provisioning Pool for which Deduplication or Compression is enabled, after disabling Deduplication and Compression, delete the Thin Provisioning Pool.
Refer to the following ETERNUS Disk storage system manuals for information on the Deduplication/Compression function of Thin Provisioning Pool.
Used Storage Model Name | Manual Name |
|---|---|
ETERNUS DX S4 series (excluding DX60 S4, DX100 S4) | ETERNUS Web GUI User's Guide (Settings) |
Point
The methods for creating Thin Provisioning Pools are automatic creation (recommended) and manual creation. For automatic creation, select "Automatic" in the Create Mode field on the Create Thin Provisioning Pool screen. For manual creation, select "Manual".
When you create a Thin Provisioning Pool automatically, Deduplication/Compression can be set to "Enable". For automatic creation, a configuration suitable to Deduplication/Compression is automatically created based on the specified disk type, reliability, and Thin Provisioning Pool total capacity. Therefore, before the automatic creation, check that the required number of assigned disks in which two or more RAID groups can be created exist. For the required number of disks to create RAID groups, refer to the manuals of the target ETERNUS Disk storage system.
Deduplication/Compression can be used even if a Thin Provisioning Pool is created manually, but advanced knowledge is required. For manual creation, a RAID group configuration can be selected. To enable Deduplication/Compression for manual creation, after creating a Thin Provisioning Pool by setting the chunk size to 21 MB, enable Deduplication/Compression. To set the chunk size to 21 MB, check the Deduplication/Compression Ready checkbox of the Chunk Size field on the Create Thin Provisioning Pool screen.
In the Create Thin Provisioning Pool screen, if you select "Automatic" in the Create Mode field, the maximum capacity that can be created for the Thin Provisioning Pool is displayed in the format "(MAX: maximumCapacityToBeCreated)" in the Thin Provisioning Pool Total Capacity field.
Note
If the firmware version number of the ETERNUS DX80 S2/DX90 S2 is less than V10L20, a total capacity of Thin Provisioning Pool exceeding 2 TB cannot properly be displayed. When using a Thin Provisioning Pool exceeding 2 TB, the firmware version number must be V10L20 or later:
For automatic creation of the Thin Provisioning Pool with Deduplication or Compression enabled, even if a Thin Provisioning Pool is successfully created, Deduplication or Compression may fail to be enabled. If it fails to be enabled, take action according to the corresponding message.
If the status of Deduplication/Compression is "Error", a hyphen ("-") is displayed in Capacity Reduction Rate. When an automatic update is triggered after recovery from "Error", the indicator for Capacity Reduction Rate is changed from a hyphen ("-") to a numerical value. If you want to check the latest capacity reduction rate before it is automatically updated, perform the Reload Conf. operation for the target ETERNUS Disk storage system.
