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5.501 bytes |
Service Hints & Tips |
Document ID: RMIE-38ZBU5 |
PC Server 320 / 500 / 520 / 720 - Server backplane address jumper configuration
Applicable to: World-Wide
Abstract :
Server Backplane Address Jumper Configuration
Symptom :
Servers with hot-swap backplanes may experience intermittent drive errors, defunct (DDD) drives that don't spin down or drive LEDs that don't blink when a drive has failed.
Problem Isolation Aids :
The system is an 8640, 8641, 8642 or 3518 with one or more hot swap backplanes installed.
Fix :
Check the Backplane Address Jumper:
1. Shutdown the operating system
2. Power off the server.
3. Verify the Backplane Address Jumper configuration:
a. For ALL 8640 and 8641 backplanes: Jumpers should NOT be present on the pins for Bank0, Bank1, or Bank2 on any backplane. Refer to Figure 1. The PC Server 520 (8641) may have shipped with a backplane address jumper installed; it should be removed.
b. For 8642 and 3518 backplanes: Each backplane MUST have a unique address. A jumper should be present on the pins for Bank0, Bank1, OR Bank2 depending on the backplane's location within the server or expansion enclosure. Refer to Figure 1 and Table 1 below to determine the correct jumper setting for an 8642 or 3518 backplane:
Figure 1
Backside of Backplane
.------------------------------------------------------------.
| ----- ----- |
| | | | | |
| | S | | S | |
|.. Bank2 | C | | C | |
|.. Bank1 | S | | S | |
|.. Bank0 | I | | I | |
| | | | | |
| ----- ----- |
--------------------------------------------------------------
Table 1
Jumper Position | Backplane Location
----------------|-------------------
Bank0 | Bank C
Bank1 | Bank D
Bank2 | Bank E
Note :
The documentation in the Server 520 User's Handbook, part number 62H7096, page 177 is incorrect. Backplane address jumpers should NOT be installed on any Server 520 backplanes.
SAS Keywords :
PSY2 D/T8640 D/T8642 PSY2FDSK
DEFUNCT PC SERVER SERVER DASD
P/N71G6291 P/N06H8388 P/N06H7669 P/N70G9740
P/N94G4605 P/N76H2670 P/N70G9855 P/N76H2671
P/N06H8629 D/T3518
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Search Keywords |
DASD, Health | |
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Hint Category |
Hard Drives, Retain | |
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Date Created |
29-08-96 | |
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Last Updated |
08-01-99 | |
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Revision Date |
08-01-2000 | |
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Brand |
IBM PC Server | |
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Product Family |
PC Server 320, PC Server 500, PC Server 520, PC Server 720, Rack/Storage Enclosures | |
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Machine Type |
8640, 8641, 8642, 3518 | |
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Model |
Various | |
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TypeModel |
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Retain Tip (if applicable) |
H133777 | |
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Reverse Doclinks |