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Diagnosing array problems 32
Item 1
(amber LED)
Item 2 (green
LED)
Interpretation
Slow blink
(once every
16 seconds)
—
This display pattern occurs after the system is
powered down if the cache contains data that
has not yet been written to the drives. Restore
system power as soon as possible to prevent
data loss. (A fully charged battery pack can
preserve cached data for up to three days.)
The life expectancy of a battery pack is
typically three years or more, depending on the
cache module size. For further information, see
the controller QuickSpecs on the HP website
(http://www.hp.com
).
Diagnostic tools
Several diagnostic tools provide feedback about problems with arrays. The most important are:
• ADU
This utility is available on both the SmartStart CD and the HP website (http://www.hp.com/support
).
The meanings of the various ADU error messages are provided in the HP Servers Troubleshooting
Guide.
• POST messages
Smart Array controllers produce diagnostic error messages at reboot. Many of these POST messages
are self-explanatory and suggest corrective actions. For more information about POST messages,
refer to the HP Servers Troubleshooting Guide.
• Server Diagnostics
To use Server Diagnostics:
a. Insert the SmartStart CD into the server CD-ROM drive.
b. Click Agree when the license agreement appears, and click the Maintenance tab.
c. Click Server Diagnostics, and follow the on-screen prompts and instructions.