Tape Unit Failing Items
Notes:
1. To determine the failing items, go to “Failing Items” on page 479.
2. To determine the associated part numbers, go to “Type, Model, and Part
Number list” on page 885.
3. To determine the parts associated with symbolic FRUs, such as “ANYBUS”,or
“DEVTERM”,goto“Symbolic FRUs” on page 495.
Failing Item Description Document Description
05H3834 Interposer Magnetic tape subsystem service
information
61G8324 Terminating plug Magnetic tape subsystem service
information
DHK0002 I/O device Use the sense bytes and 3490 MI to
find the failing items
EXTSCSI External signal cable Problem Analysis; Symbolic FRU
Isolation
MHK0001 Tape Magnetic tape subsystem operator’s
information
MHKTMED Defective removable media Magnetic tape subsystem operator’s
information
UHK0003 I/O device not communicating Magnetic tape subsystem operator’s
information
UHKCLN Tape unit needs cleaning Magnetic tape subsystem operator’s
information
UHKCNFG Tape configuration detected by I/O
processor; not valid
Installation
(3494) Tape Library Reference Codes
A tape or a tape library failure occurred.
Note: For tape device reset procedures and IOP reset procedures, see “TU-PIP4”
on page 453.
1. Is the operating system available, and can you enter commands from the
command line?
Yes No
↓ Go to step 3 of this procedure.
2. Is OS/400 available on the system (see “Determining the Dominant Operating
System” in the iSeries Service Functions)?
No Yes
↓ Use the on-line problem analysis procedures to isolate the problem. Use
the WRKPRB (Work with Problem) command to determine if a recent
problem was entered in the problem log. Or use the VFYTAP (Verify
Tape) command to run verification tests.
3. Find the unit reference code in the following table.
3490
140
iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
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