HP A7533A HP StorageWorks Fabric OS 6.x administrator guide (5697-0015, May 20 - Page 473

9. Enter the switchEnable command to re-enable the switch. For example: switch:admin> switchdisable switch:admin> configure Configure... Fabric parameters (yes, y, no, n): [no] yes Domain: (1..239) [1] R_A_TOV: (4000..120000) [10000] E_D_TOV: (1000..5000) [2000] Data field size: (256..2112) [2112] Sequence Level Switching: (0..1) [0] Disable Device Probing: (0..1) [0] Suppress Class F Traffic: (0..1) [0] SYNC IO mode: (0..1) [0] Core Switch PID Format: (0..2) [0] 1 Per-frame Route Priority: (0..1) [0] Long Distance Fabric: (0..1) [0] BB credit: (1..27) [16] 10. After all switches are updated to use the new PID format and re-enabled, verify the fabric has fully reconverged (each switch "sees" the other switches). 11. Enter 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; it 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. 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 and fabric to be updated. 3. If you are not using multipathing software, unmount the volumes from their mount points using umount. The proper usage is umount . 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 proper usage is vgchange -a n . 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 proper usage would be vgexport -m . 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 with the command vgscan. Fabric OS 6.x administrator guide 473