Technical data

Fabric OS Encryption Administrator’s Guide (DPM) 167
53-1002720-02
Crypto LUN configuration
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CAUTION
When configuring a LUN with multiple paths (which means the LUN is exposed and configured on
multiple CryptoTarget containers located on the same Encryption switch or blade, or on different
encryption switches or blades), the same LUN policies must be configured on all LUN paths.
Failure to configure all LUN paths with the same LUN policies results in data corruption. If you are
configuring multi-path LUNs as part of a HA cluster or DEK cluster or as a stand-alone LUN
accessed by multiple hosts, follow the instructions described in the section “Configuring a
multi-path Crypto LUN” on page 198.
Discovering a LUN
When adding a LUN to a CryptoTarget container, you must specify a LUN Number. The LUN Number
needed for configuring a given Crypto LUN is the LUN Number as exposed to a particular initiator.
The Brocade encryption platform provides LUN discovery services through which you can identify
the exposed LUN number for a specified initiator. If you already know the exposed LUN numbers for
the various initiators accessing the LUN, you may skip the LUN discovery step and directly configure
the Crypto LUN.
1. Log in to the group leader as Admin or FabricAdmin.
2. Enter the cryptocfg
--discoverLUN command followed by the CryptoTarget container Name.
FabricAdmin:switch> cryptocfg --discoverLUN my_disk_tgt
Container name: my_disk_tgt
Number of LUN(s): 1
Host: 10:00:00:00:c9:2b:c9:3a
LUN number: 0x0
LUN serial number: 200000062B0F726D0C000000
Key ID state: Key ID not available
Key ID: 3a:21:6a:bd:f2:37:d7:ea:6b:73:f6:19:72:89:c6:4f
CAUTION
When configuring a LUN with multiple paths, perform the LUN discovery on each of the
CryptoTarget containers for each of the paths accessing the LUN and verify that the serial
number for these LUNs discovered from these CryptoTarget containers are the same. This
indicates and validates that these CryptoTarget containers are indeed paths to the same LUN.
Refer to the section “Configuring a multi-path Crypto LUN” on page 198 for more information.