IBM BladeCenter S Problem Determination And Service Manual page 64

5. Check the event log for other hardware related errors such as CPU or DIMM
Watchdog timeout messages displayed for multiple blade
servers
Watchdog timeout messages are displayed in the advanced management module
event log. Use this procedure if you are seeing these messages for multiple blade
servers in a BladeCenter S chassis.
Problem
The advanced management module event log displays watchdog timeout messages
for multiple blade servers in a BladeCenter S chassis.
Investigation
Perform these steps to resolve the problem:
1. Find firmware updates for the blade server and service processor. Look in the
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BladeCenter S Type 7779/8886: Problem Determination and Service Guide
a. If an I/O expansion card is installed in the blade server, remove it and
reboot the blade server.
– If the blade server boots properly, replace the I/O expansion card.
– If the blade server is still nonresponsive, force the blade server to boot
from the backup flash image. You will need to remove the blade server
from the BladeCenter S chassis, open the cover, and move one of the
jumpers. See the documentation that came with the blade server for
information about this procedure.
- If the blade server boots from the backup flash image, update the
firmware for the blade server.
- If the blade server continues to be nonresponsive, replace the blade
server.
v If there are OS watchdog timeout messages for this blade server in the event
log, access the operating system logs to determine why the blade server is
nonresponsive.
– Determine if the nonresponsiveness is due to a software driver or module
problem.
– Look for machine checks or memory errors in the event log.
– Verify that the disk and communications drivers are up to date.
errors. If you see hardware faults occurring before the watchdog timeout
occurs, the problem may be in one of the blade server hardware components.
Follow normal debug procedures to isolate the faulty hardware component and
replace it.
Note: Hard disk drives, I/O cards, and I/O expansion modules can cause CPU
faults because of bus errors.
firmware change history for information related to watchdog timeout errors
and update the firmware if necessary.
a. Go to http://www.ibm.com/systems/support/.
b. Under Product Support, click BladeCenter.
c. Under Popular links, select Software and device drivers.
d. Under BladeCenter device driver file matrices, select the appropriate blade
server.