Position (listed in IOA
assignment order)
Possible Failing
Component
DSA (BBBBCcbb) Unit Address
C07 Communication, workstation
IOA
The IOA has the same DSA
as the first IOP found in the
following list: C08, C09,
C10, C12.
E6FFFFFF
C07 IXS attached IOA The IOA has the same DSA
as the first IOP found in the
following list: C08, C09,
C10, C12.
E206FFFF
D01 Disk unit 0001-10-00 200100FF
D02 Disk unit 0001-10-00 200200FF
D03 Disk unit 0001-10-00 200300FF
D04 Disk unit 0001-10-00 200400FF
D05 Disk unit 0001-10-00 200E00FF
D06 Disk unit 0001-10-00 200F00FF
D07 Disk unit The disk unit has the same
DSA as the IOP controlling
the Storage IOA.
xy0100FF (where xy is not
20)
D08 Disk unit The disk unit has the same
DSA as the IOP controlling
the Storage IOA.
xy0200FF (where xy is not
20)
D09 Disk unit The disk unit has the same
DSA as the IOP controlling
the Storage IOA.
xy0300FF (where xy is not
20)
D10 Disk unit The disk unit has the same
DSA as the IOP controlling
the Storage IOA.
xy0400FF (where xy is not
20)
D11 Disk unit The disk unit has the same
DSA as the IOP controlling
the Storage IOA.
xy0E00FF (where xy is not
20)
D12 Disk unit The disk unit has the same
DSA as the IOP controlling
the Storage IOA.
xy0F00FF (where xy is not
20)
D13 Optical 0001-10-00 200600FF
D14 Tape 0001-10-00 200700FF
Addresses — Model 825
For use by authorized service providers.
Use the address to find the location. Then, go to Locations — Model 825 to find additional information.
Table 1. IOP, IOA, and device address information for Model 825
Position (listed in IOA
assignment order)
Possible failing
component DSA (BBBBCcbb) Unit address
Note: IOA and device DSA’s
will not follow the rules below
if the IOA is manually
reassigned after IPL.
C07 Load source IOP 0001-20-00 FFFFFFFF
Analyze hardware problems 329