Reference
Code
Description/Action Perform all actions before exchanging
Failing Items
Failing Item
FFF8 Asynchronous device attached; synchronous device
expected
The attached device is operational and working in the
asynchronous mode of data tranfer. The IBM tape unit
uses the synchronous mode of data transfer; if the
attached device is an IBM tape unit, exchange the tape
unit.
86G9251
FFFE Tape unit detected a read error on the tape medium
Perform the Action for reference code 030B.
MLYTMED
86G9251
86G9274
FFFF Tape unit detected a write error on tape medium
Perform the Action for reference code 030B.
MLYTMED
86G9251
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
17G1934 Terminating plug Magnetic tape subsystem service
information
86G9251 Tape drive 7208 Model 012 5.0GB External 8mm
Tape Drive Service Guide
86G9251 Tape drive Magnetic tape subsystem service
information
86G9254 Controller logic card Magnetic tape subsystem service
information
86G9255 Internal signal cable Magnetic tape subsystem service
information
86G9274 Power supply Magnetic tape subsystem service
information
87G1531 Operator Panel/LCD Assembly Magnetic tape subsystem service
information
AJSLC01 I/O processor Licensed Internal Code Service Functions; APAR or LICTR
EXTSCSI Cable assembly Problem Analysis; Symbolic FRU
isolation
LIBDEV Media Library Device Magnetic tape subsystem service
information
MLYTMED Defective removable media System operation information
ULYCLN Tape unit needs cleaning Magnetic tape subsystem operator’s
information
ULYCNFG Tape configuration detected by I/O
processor; not valid
Magnetic tape subsystem operator’s
information
9427
178
iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1