Disabling data encryption at the parity-group level

Disable data encryption at the parity-group level to perform (normal) formatting options on encrypted data, such as writing to or overwriting an LDEV. You must have Security Administrator (View & Modify) role to disable encryption. The Storage Administrator (provisioning) role is also required if you want to format volumes at the same time.

Prerequisites

Required role: Security Administrator (View & Modify)

Required role to format volumes: Storage Administrator (Provisioning)

In Hitachi Command Suite:

On the Resources tab, click Storage Systems, and then expand All Storage Systems.

Expand the target storage system, and then select Parity Groups.

In the table that is shown, Internal or External are displayed.

In Device Manager - Storage Navigator:

Display the Device Manager - Storage Navigator main window.

Select Storage Systems in Explorer, and select Parity Groups.

In the table that is shown, Internal or External are displayed.

To select an internal LDEV, select Internal. Otherwise, select the Parity Groups tab.

On the Parity Groups tab, select the name for the parity group name you want to disable encryption and then complete one of the following:

Click Actions > Parity Group > Edit Encryption.

Click Edit Encryption.

In the Edit Encryption window, complete the following and then click Add:

For Available Parity Groups, choose the parity group on which you want to disable data encryption.

For Encryption, select Disable.

For Format Type, choose the format type.

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

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

In the Edit Encryption window, click Finish.

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

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

Click Apply.

In the confirmation message that appears asking whether to apply the setting to the storage system, click OK.

Encryption is disabled for the parity group.