Brocade Fabric OS Encryption Administrator’s Guide Supporting HP Secure Key Manager (SKM) and HP Enterprise Secure Key Manager (ESKM) Environments (Supporting Fabric OS v7.2.0) - Manual (Page 219)

Fabric OS Encryption Administrator’s Guide (SKM/ESKM) 199
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Data rekeying
3
1. Log in to the group leader as FabricAdmin.
2. Enable automatic rekeying by setting the
-
enable_rekey parameter followed by a time period
(in days). The following example enables the automatic rekeying feature on an existing LUN
with a 90-day rekeying interval. The data will automatically be re-encrypted every 90 days.
FabricAdmin:switch> cryptocfg --modify -LUN my_disk_tgt 0x0 \
10:00:00:00:c9:2b:c9:3a -enable_rekey 90
Operation Succeeded
3. Commit the configuration.
FabricAdmin:switch> cryptocfg --commit
Operation Succeeded
Initiating a manual rekey session
You can initiate a rekeying session manually at your own convenience. All encryption engines in a
given HA cluster, DEK cluster, or encryption group must be online for this operation to succeed. The
manual rekeying feature is useful when the key is compromised and you want to re-encrypt existing
data on the LUN before taking action on the compromised key.
CAUTION
Do not commit this operation if there are any changes pending for the container in which the
rekey was started. If you attempt to do this, the system displays a warning stating that the
encryption engine is busy and a forced commit is required for the changes to take effect. A forced
commit in this situation will halt any rekey that is in-progress (in any container) and corrupt any
LUN that is running rekey at the time. There is no recovery for this type of failure.
1. Log in to the group leader as Admin or FabricAdmin.
2. Do LUN discovery by issuing the cryptocfg
--
discoverLUN command (before issuing the
cryptocfg
--
manual_rekey) command to avoid a potential I/O timeout because of a path state
change at the host.
3. Ensure that all encryption engines in the HA cluster, DEK cluster, or encryption group are online
by issuing the cryptocfg
--
show
-
groupmember
-
all command.
4. Enter the cryptocfg
-
manual_rekey command. Specify the CryptoTarget container name, the
LUN number and the initiator PWWN.
FabricAdmin:switch> cryptocfg --manual_rekey my_disk_tgt 0x0\
10:00:00:05:1e:53:37:99
Operation Succeeded
Please check the status of the operation using "cryptocfg --show -rekey"
5. Check the status of the rekeying session.
FabricAdmin:switch> cryptocfg --show -rekey -all
Number of rekey session(s): 1
Container name: cx320-157A
EE node: 10:00:00:05:1e:40:4c:00
EE slot: 9