HP StorageWorks Scalable File Share - Manual (Page 274)

Troubleshooting 9–50
The following is an example of the output from the command where LUNs from an EVA4000 array are
(incorrectly) visible to both controllers in the controller pair:
# /usr/opt/hpls/diags/bin/controller_check.bash
Controller Pair: 50001fe15003a6d0
Controller: P5849E1AAQF05K
Lun: 600508b4001012d100004000003e0000
Disks: /dev/sda Size: 2 GB
Lun: 600508b4001012d10000400000430000
Disks: /dev/sdb Size: 555 GB
Lun: 600508b4001012d10000400000460000
Disks: /dev/sdc Size: 2 GB
Lun: 600508b4001012d10000400000490000
Disks: /dev/sdd Size: 555 GB
Controller: P5849E1AAQH04A
Lun: 600508b4001012d100004000003e0000
Disks: /dev/sde Size: 2 GB
Lun: 600508b4001012d10000400000430000
Disks: /dev/sdf Size: 555 GB
Lun: 600508b4001012d10000400000460000
Disks: /dev/sdg Size: 2 GB
Lun: 600508b4001012d10000400000490000
Disks: /dev/sdh Size: 555 GB
Controller Check FAILED: Different controller presenting same LUN
The output shows the identifier of each controller pair, the serial number of each presenting controller, and
the WWID of each LUN. Check whether the serial number of the presenting controller aligns with the
preferred controller for the LUN, and that each LUN is only presented to one controller.
If you determine that LUNs are visible through both controllers on an array, reconfigure the EVA4000
storage array as follows:
1. Shut down the servers that the LUNs have been incorrectly presented to, as shown in the following
example:
sfs> shutdown server south[3-4]
2. Correct the LUN presentation by performing the following tasks:
a.
Using the SSSU utility, connect to the EVA4000 array where the LUNs are located, as shown in
the following example:
sssu> select system HSV02
HSV02>
b. Remove all the presentations of LUNs to the host, as shown in the following example:
HSV02> DELETE LUN "\Hosts\sfs\south3-south4\1"
c. Delete the incorrect host entry on the array, as shown in the following example:
HSV02> DELETE HOST "\Hosts\sfs\south3-south4"
d. Create the new host entry and then present the LUNs to the new host entry.
Refer to Chapter 5 of the HP StorageWorks Scalable File Share System Installation and Upgrade
Guide for information on how to create host entries and present LUNs.
3. Restart the servers, as shown in the following example:
sfs> boot server south[3-4]