HP StorageWorks Fabric OS 6.1.x administrator guide (5697-0234, November 2009)

Fabric OS 6.1.x administrator guide 455
vgexport –a y /dev/jbod
17. If you are not using multipathing software, mount all devices again and restart I/O. For example:
mount /mnt/jbod
18. If you are using multipathing software, reenable the affected path. The preceding steps do not “clean
up” the results from ioscan. When viewing the output of ioscan, notice the that the original entry is still
there, but now has a status of NO_HW.
# ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
---------------------------------------------------------------------------
disk 0 0/0/1/1.2.0 adisk CLAIMED DEVICE SEAGATE ST39204LC
/dev/dsk/clt2d0 /dev/rdsk/c1t2d0
disk 1 0/0/2/1.2.0 adisk CLAIMED DEVICE HP DVD-ROM 304
/dev/dsk/c3t2d0 /dev/rdsk/c3t2d0
disk 319 0/4/0/0.1.2.255.14.8.0 adisk CLAIMED DEVICE SEAGATE
ST336605FC
/dev/dsk/c64t8d0 /dev/rdsk/c64t8d0
disk 320 0/4/0/0.1.18.255.14.8.0adisk NO_HW DEVICE SEAGATE
ST336605FC
/dev/dsk/c65t8d0 /dev/rdsk/c65t8d0
19. Remove the original (outdated) entry. The proper usage for this command is rmsf –a –v
<path_to_device>. For example:
rmsf –a –v /dev/dsk/c65t8d0
20.Enter the ioscan -funC disk command to validate that the entry has been removed. In this
example, the NO_HW entry is no longer listed:
het46 (HP-50001)> ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
---------------------------------------------------------------------------
disk 0 0/0/1/1.2.0 adisk CLAIMED DEVICE SEAGATE ST39204LC
/dev/dsk/clt2d0 /dev/rdsk/c1t2d0
disk 1 0/0/2/1.2.0 adisk CLAIMED DEVICE HP DVD-ROM 304
/dev/dsk/c3t2d0 /dev/rdsk/c3t2d0
disk 319 0/4/0/0.1.2.255.14.8.0 adisk CLAIMED DEVICE SEAGATE
ST336605FC
/dev/dsk/c64t8d0 /dev/rdsk/c64t8d0
21. Repeat for all fabrics.
22.Issue the switchEnable command. Enable the core switches first, then the edges.
AIX procedure
This procedure is not intended to be comprehensive. It provides a starting point from which a SAN
administrator can develop a site-specific procedure for a device that binds automatically by PID, and
cannot be rebooted due to uptime requirements.
1. Back up all data. Verify backups.
2. If you are not using multipathing software, stop all I/O going to all volumes connected through the
switch or fabric to be updated.