6.0 HP X9720 Network Storage System Administrator Guide (AW549-96034, December 2011)

Identifying failed I/O modules on an X9700cx chassis
When an X9700cx I/O module (or the SAS cable connected to it) fails, the X9700c controller
attached to the I/O module reboots and if the I/O module does not immediately recover, the
X9700c controller stays halted. Because there are two X9700cx I/O modules, it is not immediately
obvious which I/O module has failed. In addition, the X9700c controller may halt or appear to
fail for other reasons. This document describes how to identify whether the failure condition is on
the X9700cx I/O module or elsewhere.
Failure indications
A failed or halted X9700c controller is indicated in a number of ways as follows:
• The exds_stdiag report could indicate a failed or halted X9700c controller.
• An email alert.
• In the X9000 management console, the logical volumes in the affected capacity black show
a warning.
• The amber fault LED on the X9700c controller is flashing.
• The seven-segment display shows an H1, H2, C1, or C2 code. The second digit represents
the controller with a problem. For example, H1 indicates a problem with controller 1 (the left
controller, as viewed from the back).
Identifying the failed component
IMPORTANT: A replacement X9700cx I/O module could have the wrong version of firmware
pre-installed. The X9700cx I/O module cannot operate with mixed versions of firmware. Plan for
system downtime before inserting a new X9700cx I/O module.
116 Troubleshooting