Troubleshooting - HP Surestore Disk Array 12h - And FC60 Service Manual
Hp surestore e disk array 12h user's and service manual (c5445-90901, september 1999)
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Also See for Surestore Disk Array 12h - And FC60:
- Service manual (746 pages) ,
- Advanced user's manual (466 pages) ,
- User manual (310 pages)
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Appendix D. Back-to-Back Racking
Troubleshooting
Troubleshooting
A computer/instrument rack which has been field-upgraded for back-to-back racking has improved cooling
and power features. In addition, the upgrade (the exhaust fan assembly) provides circuitry which can report
fan failures and provide an indication of power failures. Fan and power failures are reported via indicator
LEDs on the front of the fan assembly. If a failure occurs, the rack will continue to operate with its
remaining non-failed components. To isolate a possible power or fan failure, use one of the following
procedures, based on the status of the indicator LEDs.
NOTE The two exhaust fan assembly power cables need to be connected into two separate
PDUs, such as PDU #1 and PDU #2.
The new PDUs installed from the power upgrade kit are not wired through the rack power switch.
The rack power switch, at the top of the rack, is disconnected and no longer provides power
switching. To disconnect power to the rack you must unplug each of the three PDUs.
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Troubleshooting
