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2.643 bytes |
Service Hints & Tips |
Document ID: GSMH-382E8X |
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This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose. |
Servers - Bowed backplane may cause hard drive problems
Applicable to: World-Wide
Service Information:
Testing and failure analysis has shown that some PC Server fixed disk problems may be caused by a bowed backplane.
In cases where the drive is not fully seated in the backplane connector, it could appear Offline or DDD (drive defunct), or exhibit other drive-related failure symptoms.
When diagnosing hardfile problems on PC Server systems, either solid or intermittent, examine the backplane card lengthwise for a bowed condition. If the card is bowed enough to potentially cause a poor drive connection, replace the backplane FRU.
Note:
The fixed disk assembly should plug into the backplane connector without excessive force. If the connectors are not properly aligned and the drive is forced, the backplane may be bent. This could result in other drives on the same backplane appearing Offline or DDD.
SAS KEYWORDS:
PSY2 PSY2FDSK D/T8642 DEFUNCT
PC SERVER SERVER 500 520
720 WARPED BENT FRAME
DASD D/T8640 300 320
P/N71G6291 P/N06H8388
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Search Keywords |
Health | |
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Hint Category |
Retain | |
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Date Created |
21-05-96 | |
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Last Updated |
30-04-98 | |
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Revision Date |
28-04-99 | |
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Brand |
IBM PC Server | |
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Product Family |
PC Server 300, PC Server 320, PC Server 500, PC Server 520, PC Server 720 | |
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Machine Type |
8640, 8641, 8642 | |
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Model |
ALL | |
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TypeModel |
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Retain Tip (if applicable) |
H122801 | |
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Reverse Doclinks |