Chapter 4. Solving problems
37
Note:
If you cannot find the problem in the troubleshooting chart, test the entire
system. See your server documentation for more detailed information on
testing and diagnostic tools.
If you already have run the server test program, or if running the test does not
reveal the problem, have the system serviced.
Getting help, service, and information
If you need help, service, technical assistance, or just want more information about
IBM products, you will find a wide variety of sources available from IBM to assist
you.
With the original purchase of an IBM hardware product, you have access to extensive
support coverage. During the IBM hardware product warranty period, you may call
the IBM Personal Computer HelpCenter (1-800-772-2227 in the U.S.) for hardware
product assistance covered under the terms of the IBM Statement of Limited
Warranty.
The following services are available during the warranty period:
•
Problem Determination - Trained personnel are available to assist you with
determining if you have a hardware problem and deciding what action is
necessary to fix the problem.
•
IBM Hardware Repair - If the problem is determined to be caused by IBM
hardware under warranty, trained service personnel are available to provide the
applicable level of service.
•
Engineering Change Management - Occasionally, there might be changes that
are required after a product has been sold. IBM or your reseller, if authorized by
IBM, will make Engineering Changes (ECs) available that apply to your
hardware.
Be sure to retain your proof of purchase to obtain warranty service. Refer to the IBM
hardware warranty for a full explanation of IBM’s warranty terms.
Unable to access
drives on one or
both SCSI buses
Drives and
SCSI bus
Incorrect SCSI
ID settings
Make sure SCSI cables are undamaged and
properly connected. Check the drive SCSI ID
settings. Ensure that option switches 1 and 3
(inside the switch card) are set to the
appropriate positions.
Attention:
Change switch positions only when your host
server and expansion unit is turned off.
ESM board
failure
Have the expansion unit serviced.
Bridge card
Bridge card
failure
All high address or all low address hard-disk
drive failed; check the bridge card CRU and
replace if necessary. See “Replacing a bridge
card” on page 30.
Random errors
Subsystem
Midplane failure Have the expansion unit serviced.
Problem indicator
Component
Possible cause
Possible solutions
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