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Before Exchanging a Disk Drive Module
1. Use the system error log to identify the faulty disk drive module. Appendix A,
"Operating with RISC Systems", on page 77 describes how to do this if you
have a RISC-based system.
2. Find the failing disk drive module by using the location code supplied in the
error log.
3. Use the SCSI Device Identification and Removal service aid to set Remove on
the failing disk drive module. (Appendix A, "Operating with RISC Systems", on
page 77 describes how to do this if you have a RISC-based system.)
4. Check the lights on this disk drive module. ("Disk Drive Module Lights" on
page 7 describes where these are, and how to see them.)
If the Check light is on, exchange the disk drive module for a new one using
the procedure described in the following section.
Chapter 3. Exchanging FRUs
33
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