Resolving Conflicts Between Iscsi Configurations; Lun Masking Considerations - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

Resolving conflicts between iSCSI configurations

When you merge two fabrics with different iSCSI configurations, a conflict will result. If there is a conflict,
the database will not be merged and you must resolve the conflict. The iscsiCfg
command displays the "out of sync" state. The rest of the switches will function normally, however, since
there is no segmentation of E_Ports as a result of discovery domain set database conflicts.
1. Connect to the switch and log in.
2. Enter the iscsiCfg
switch:admin> iscsicfg --show fabric
Switch IDSwitch WWN
220
* 1
Aggregated iSCSI database state for fabric: Out of Sync
3. On each switch enter the
you want to use:
switch:admin> iscsicfg --show ddset
Number of records found: 1
Name: ddset-engineering
State/Status: Enabled/Committed
Num. members: 1
4. Enter the iscsiCfg
you want to use fabric-wide:
switch:admin> iscsicfg --commit all -f
This will commit ALL database changes made to all iSCSI switches in fabric.
This could be a long-running operation.
Continue (yes, y, no, n) [n]: y
The operation completed successfully.
5. Enter the iscsiCfg
switch:admin> iscsicfg --show fabric
Switch IDSwitch WWN
220
* 1
Aggregated iSCSI database state for fabric: In Sync

LUN masking considerations

The node WWN and port WWN of the local switch are used to query LUNs on the physical target. If the
physical target uses LUN masking to control access, these WWNs must be added to the LUN masking to
ensure that the LUN query returns the LUNs to the switch.
You can obtain these WWNs in either of two ways:
• Enter the iscsiCfg
WWNs of the switch.
The following is an example.
switch:admin> iscsicfg --easycreate tgt -s
The following WWNs will be used for any easycreate operation from this switch:
Node WWN: 10:00:00:60:69:80:04:4a
Port WWN: 21:fd:00:60:69:80:04:4a
270 iSCSI Gateway services
show fabric command to display the "out of sync" state:
--
10:00:00:05:1e:36:0d:f8
10:00:00:60:69:e0:01:56
iscsiCfg --show ddset
commit all command with the -f option on the switch with the database
--
show fabric command to verify that the conflict has been resolved:
--
10:00:00:05:1e:36:0d:f8
10:00:00:60:69:e0:01:56
easycreate tgt command with the -s option to return the node and port
--
Switch State iSNSC
Out of Sync Disabled
- Disabled
command to find the switch that has the database
Switch State iSNSC
In Sync Disabled
-- Disabled
show fabric
--