Disabling data encryption

Disable data encryption at the parity-group level to perform (normal) formatting options on encrypted data, such as writing to or overwriting an LDEV.

This procedure describes how to disable data encryption on a parity group in which virtual volumes are not used or in which the deduplication function is not enabled for the pool to which the parity group belongs.

Before you begin

  • Block the LDEVs in the parity group to be decrypted.
  • You must have the Security Administrator (View & Modify) role.
  • You must have the Storage Administrator (Provisioning) role to format volumes.

Procedure

  1. Expand Storage Systems in the Explorer pane, and select Parity Groups.

  2. In the Parity Groups table, select the parity group on which you want to disable encryption and then click More Actions Edit Encryption.

  3. In the Edit Encryption window, make the appropriate selections.

    • For Available Parity Groups, select the parity group for which you want to disable data encryption.
    • For Encryption, select Disable.
    • For Format Type, select the format type.

      You do not need to format volumes when there are no volumes in the selected parity group. Therefore, the format type in the Selected Parity Groups list becomes a hyphen (-) regardless of the status of the format type.

  4. Click Add.

    The parity group you selected from the Available Parity Groups table is added to the Selected Parity Groups list.

    After you click Add, Format Type becomes inactive and you cannot select the format type. If you want to change the format type, delete all parity groups in the Selected Parity Groups list and then select the format type again.

  5. Click Finish.

  6. In the Confirm window, confirm the settings, and enter your task name in Task Name.

    If you want the Task window to open after you click Apply, select Go to tasks window for status.

  7. Click Apply.

  8. In the message that appears, click OK.

Results

Data encryption is disabled on the parity group.

Next steps

Format the LDEVs at the parity-group level. For instructions, see Formatting LDEVS at the parity-group level.

Parent Topic
  • Disabling encryption

    Encryption can be disabled only when the volumes in a parity group are blocked, or the parity group has no volume. Encryption cannot be disabled if a parity group has an unblocked volume.