HP Brocade 4Gb SAN Switch for HP BladeSystem p-Class - Manual (Page 215)

Fabric OS 5.0.0 procedures user guide 215
10. After all switches are updated to use the new PID format and reenabled, verify that the fabric has fully
reconverged (each switch sees the other switches).
11. Issue the command
cfgenable [active_zoning_config]
on one of the switches in the fabric
to update zoning to use the new PID form.
This does not change the definition of zones in the fabric, but merely causes the lowest level tables in
the zoning database to be updated with the new PID format setting. It is only necessary to do this
once per fabric; the zoning update automatically propagates to all switches.
At this point, all switches in the fabric are operating in the new addressing mode.
HP–UX procedure
This procedure is not intended to be comprehensive. It provides a starting point from which a SAN
administrator could develop a site-specific procedure for a device that binds automatically by PID, and
cannot be rebooted due to uptime requirements.
1. Backup all data. Verify backups.
2. If you are not using multipathing software, stop all I/O going to all volumes connected through the
switch/fabric to be updated.
3. If you are not using multipathing software, unmount the volumes from their mount points using
umount
. The format is
umount mount_point
. For example:
umount /mnt/jbod
4. If you are using multipathing software, use that software to remove one fabric’s devices from its
configuration.
5. Deactivate the appropriate volume groups using
vgchange
. The format is
vgchange –a n path_to_volume_group
. For example:
vgchange –a n /dev/jbod
6. Make a backup copy of the volume group directory using tar from within
/dev
. For example:
tar –cf /tmp/jbod.tar jbod
7. Export the volume group using
vgexport
. The format is
vgexport –m mapfile path_to_volume_group
. For example:
vgexport –m /tmp/jbod_map /dev/jbod
8. Connect to each switch in the fabric
9. Issue the
switchDisable
command.
10. Issue the
configure
command and change the Core Switch PID Format to 1.
11. Issue the command
cfgEnable [effective_zone_configuration]
. For example:
cfgEnable my_zones
12. Issue the
switchEnable
command. Enable the core switches first, then the edges.
13. Clean the
lvmtab
file by using the command
vgscan
.
14. Change to
/dev
and untar the file that was tared in step 4. For example:
tar –xf /tmp/jbod.tar
15. Import the volume groups using
vgimport
. The format is
vgimport –m mapfile path_to_volume_group physical_volume_path
. For example:
vgimport –m /tmp/jbod_map /dev/jbod /dev/dsk/c64t8d0 /dev/dsk/c64t9d0
16. Activate the volume groups using vgchange. The format is
vgchange –a y path_to_volume_group
. For example:
vgexport –a y /dev/jbod