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Brocade Fabric OS Encryption Administrator’s Guide Supporting RSA Data Protection Manager (DPM) Environments (Supporting Fabric OS v7.2.0) User Manual

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Fabric OS Encryption Administrator’s Guide (DPM)

53-1002922-01

Adding target disk LUNs for encryption

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8. If REPL Support was enabled by the Configure Switch Encryption wizard, a New LUN check box

is presented and enabled by default. If this LUN is to be paired with another LUN for SRDF data
replication, the New LUN option must be enabled. Refer to

“Metadata requirements and

remote replication”

for information about how this option works. If REPL support was not

enabled, this check box is not displayed.

9. Click Finish.

The new LUN path is added to the Encryption Disk LUN View table.

10. Click OK on the LUN view to commit the operation.

NOTE

With the introduction of Fabric OS v7.1.0, the maximum number of uncommitted configuration
changes per disk LUN (or maximum paths to a LUN) is 512 transactions. The 512 LUN
operations can be for the same LUN or be subjected to 25 distinct LUNs. This change of
restriction in commit limit is applicable when using Brocade Network Advisor only. Earlier
Fabric OS versions allowed a maximum of 25 uncommitted changes per disk LUN. Adding or
modifying more than 25 paths on the same LUN is not recommended unless the LUN is
encrypted.

In environments where there are multiple paths to the same LUNs, it is critical that the same
LUN policies are configured on all instances of the LUN. Be sure to return to the Encryption
Disk LUN View dialog box to determine if there are configuration mismatches. Check under
Encryption Mode for any entries showing Mismatch. To correct the mismatch, click the
incorrect mode to display the options, then select the correct mode. (Refer to

Figure 53

.)

FIGURE 53

Correcting an encryption mode mismatch

When you correct a policy on a LUN, it is automatically selected for all paths to the selected
LUN. When you modify LUN policies, a Modify icon displays to identify the modified LUN entry.

11. Click OK or Apply to apply the changes.