HP XP7 Storage - Manual (Page 22)

Blocking LDEVs at the parity-group level
Block the LDEVs at the parity-group level so that you can disable data encryption and format LDEVs.
Blocked LDEVs in the parity group have a status of “Blocked”.
NOTE: You cannot write to a blocked LDEV.
1. From the RWC main window, click Explorer > Storage System > volume (resource).
2. On the LDEVs tab, complete one of the following and then click Block LDEVs:
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For Parity Group, select the parity group to which the LDEV is associated.
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For Logical Device, select the LDEV you want to block.
3. In the confirmation message that appears, click Apply.
The LDEV is blocked.
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.
1.
In the Storage Systems tree, click Parity Groups.
In the tree, Internal or External is displayed.
2. To select an internal LDEV, select Internal. Otherwise, select the Parity Groups tab.
3. On the Encryption Keys tab, select the name for the parity group name you want to disable
encryption and then complete one of the following:
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Click Actions > Parity Group > Edit Encryption.
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Click More Actions > Edit Encryption.
4. In the Edit Encryption window, complete the following and then click Add:
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For Available Parity Groups, choose the parity group on which you want to disable data
encryption.
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For Encryption, select Disable.
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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.
NOTE: 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.
5. In the Edit Encryption window, click Finish.
6. In the Confirm window, complete the following and then click Apply:
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Confirm the settings.
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For Task Name, type the task name.
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(Optional) Select Go to tasks window for status to open the Tasks window.
7. 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.
22 Managing data encryption license keys