IBM Application System/400 Service Information page 54

11-2 A1xx, B1xx, C1xx, D1xx, B123
Failing
Item Description Document Description
Disk
•
6104-disk unit "Disk Unit" on page 4-7
•
6601-disk unit
Note: To determine which disk unit you have,
look at the address jumpers. The address
jumper on a 6104 disk unit is located on the
same end as the signal and power connectors.
The address jumper on a 6601 disk unit is
located on the opposite end from the signal
and power connectors.
L1C Licensed Internal Code Service Functions User's Guide; APAR or
L1CTR
Tape External 1/4-inch tape unit
External 1/4-inch tape unit documentation
User Procedural error
2-28
AS/400 9401 Service Information