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DRVSWCH
The address switches on an Optical Disk Drive in the Optical Library need to be
checked and verified. Refer to the 3995 Optical Library Dataserver Maintenance
Information Manual for more information.
This ends the procedure.
DSKDRV
The disk drive and logic card in a migrated expansion tower may be failing.
See the DSKDRV symbolic FRU in the Migrated Expansion Tower Problem Analysis,
Repair and Parts for FRU isolation instructions.
DSKTRY
A disk unit tray or a disk unit holder in a migrated expansion tower may be
failing.
See the DSKTRY symbolic FRU in the Migrated Expansion Tower Problem Analysis,
Repair and Parts for FRU isolation instructions.
DSKUNIT
See "DISKDRV" on page 529.
EACODE
An error occurred in the error analysis Licensed Internal Code.
Ask your next level of support for assistance.
This ends the procedure.
EXTREMD
An external removable media storage device may be failing.
See "CHECK" on page 522 for more information prior to removing or replacing
any parts. Return here if "CHECK" doesn't reveal any problems.
Use the device type and refer to the appropriate service documentation for that
device. This documentation will help you determine the FRU part numbers and
replacement procedures that you are to use during this repair action. If you are
unable to locate the documentation for your specific device, then contact your next
level of support for assistance.
EXTSCSI
If more than one device is attached, they may have duplicate addresses. See the
device documentation for information on setting the device address.
The external signal cable may be failing.
Perform the following:
1. Find the IOA type:
a. Find the IOA location.
Chapter 3. Problem Isolation Procedures (PIPs), Failing Items, and Symbolic FRU Isolation
Symbolic FRUs
535
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