HP StorageWorks 2/16V HP StorageWorks Fabric OS 5.X Procedures User Guide (AA- - Page 225
Executing the HP-UX procedure, If you are not using multipathing software
View all HP StorageWorks 2/16V manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 225 highlights
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 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 necessary to do this only once per fabric; the zoning update propagates to all switches. At this point, all switches in the fabric are operating in the new addressing mode. Executing the 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 by PID, and cannot be rebooted due to uptime requirements. 1. Backup all data and verify the 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 the umount command. The proper syntax 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 proper syntax 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 proper syntax 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 PID format to 1. Fabric OS 5.x administrator guide 225