Creating parity groups by selecting drives automatically

Use this procedure to create parity groups by selecting drives automatically.

Before you begin

The Storage Administrator (Provisioning) role is required to perform this task.

Procedure

  1. Click Storage Systems, and then expand the Storage Systems tree.

  2. Click Parity Groups.

  3. On the Parity Groups tab, select Create Parity Groups.

  4. Select a drive from the Drive Type/RPM/Capacity list.

  5. Select a RAID level from the RAID Level list.

  6. Select Auto from the Drive Selection field.

  7. In the Number of Parity Groups text box, enter the number you want to create.

  8. Click Options.

  9. In the Initial Parity Group ID text box, type the number of the initial parity group ID.

    The smallest available number is displayed in the text box by default. When you specify a parity group ID that was already registered, the smallest available ID is displayed. If a parity group ID is unavailable, no number is displayed.

  10. Select a drive box type from the Drive Box Type list.

  11. Select a drive box from the Initial Drive Box list.

  12. In the Drive Select Type field, select Disperse or Linear.

    TipThis item is not available with Virtual Storage Platform G200. If this storage system is used, only Linear is available.

  13. Select the CLPR number from the Cache Partition list.

  14. In the Encryption field, select Enable or Disable.

  15. In the accelerated compression field, select Enable or Disable.

    If Enable is selected in the Encryption field, you cannot select Enable in the accelerated compression.
    TipIf you have enabled accelerated compression on a parity group and then later you want to disable accelerated compression on that parity group, you must format the parity group. Therefore, we recommend that you enable accelerated compression only when the data reduction efficiency can be surely performed.

  16. In the Copy-Back Mode field, select Enable or Disable.

  17. Click Add.

    The created parity group is added to the Selected Parity Groups table. If invalid values are set, an error message appears.
    Tip
    • When you select multiple rows and click Concatenate, click OK. If selected parity groups cannot be concatenated, an error message appears.
    • If you select a row and click Change Settings, the Change Settings window appears. After you change parity group settings, click OK.
    • If you select a row and click Detail, the Parity Group Properties window appears.
    • When you select a row and click Remove, click OK.

  18. Click Next.

    The Create LDEVs window appears.

  19. Click Finish. The Confirm window appears.

  20. In the Confirm window, click Apply to register the setting in the task.

    If the Go to tasks window for status check box is selected, the Tasks window appears.
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