Fabric OS Encryption Administrator's Guide

Fabric OS Encryption Administrator’s Guide 89
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Zeroizing an encryption engine
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• If the encryption engine was part of an HA cluster, targets fail over to the peer which assumes
the encryption of all storage targets. Data flow will continue to be encrypted.
• If there is no HA backup, host traffic to the target will fail as if the target has gone offline. The
host will not have unencrypted access to the target. There will be no data flow at all because
the encryption virtual targets will be offline.
NOTE
Zeroizing an engine affects the I/Os but all target and LUN configuration is intact. Encryption target
configuration data is not deleted.
You can zeroize an encryption engine only if it is enabled (running), or disabled but ready to be
enabled. If the encryption engine is not in one of these states, an error message results.
When using an opaque key vault, if all encryption engines in an encryption group are zeroized, the
encryption group loses the master key required to read data encryption keys from the key vault.
After the encryption engines are rebooted and re-enabled, you must restore the master key from a
backup copy, or alternatively, you can generate a new master key and back it up. Restoring the
master key from a backup copy or generating a new master key and backing it up indicates that all
previously generated DEKs will not be decryptable unless the original master key used to encrypt
them is restored.
Use the Restore Master key wizard from the Encryption Group Properties dialog box to restore the
master key from a backup copy.
1. Select Configure > Encryption from the menu task bar.
The Encryption Center dialog box displays.
2. Select an encryption engine from the Encryption Center Devices table, then select Engine >
Zeroize from the menu task bar, or right-click the encryption engine and select Zeroize.
A confirmation dialog box describing consequences and actions required to recover.
3. Click YES to zeroize the encryption engine.