HP StorageWorks 9100 Extreme Data Storage System administration guide V1.0.2 (AN540-96018, February 2010)

Array 3 Controller 1 has no path from servers glory3
Array 3 Controller 2 has no path from servers glory3
• No controllers are seen when you run the exds_stdiag command.
Sometimes this happens to all servers in the system.
The underlying causes of these problems differ. However, the recovery process is similar in all cases.
Do not replace the HP P700m until you have worked through the process described here. In general
terms, the solution is to reset the SAS switches and if that fails, reboot each ExDS9100c controller
until you locate a controller that is interfering with the SAS fabric. If your system is in production,
follow the steps below to minimize downtime on the system:
1. If all servers are affected, shut down all servers; if a subset of servers is affected, shut down the
subset.
2. Using OA, log into the SAS switch 1 and reset it.
3. Wait for it to reboot.
4. Reset SAS switch 2.
5. Wait for it to reboot.
6. Boot one affected server.
7. Run the following command on one of the affected servers
exds_stdiag
If X9700c controllers can be seen, boot other affected servers and run exds_stdiag on each.
If they also see the X9700c controllers, the procedure is completed; otherwise continue to the
next step.
8. Perform the following steps For each ExDS9100c controller in turn:
a. Slide out controller until LEDs extinguish.
b. Reinsert controller.
c. Wait for the seven-segment to show "on".
d. Run the exds_stdiagcommand on affected server.
e. If OK, the procedure is completed; otherwise, repeat the previous four steps on next the
controller.
9. If the above steps do not produce fix the problem, replace the HP P700m.
10. Boot server and run exds_stdiagon affected server.
11. If you still cannot see the ExDS9100c controllers, repeat the procedure starting with step 1.
If the system is not in production, you can use the following shorter procedure:
1. Power off all server blades.
2. Using OA, power off both SAS switches.
3. Power on both SAS switches and wait until they are on.
4. Power on all server blades.
5. If OK, the procedure is completed; otherwise, continue to the next step.
6. Power off all ExDS9100c enclosures.
7. Power on all enclosures.
Troubleshooting140