Position Possible failing
component
DSA (BBBBCcbb) Unit address
D26 Disk unit The disk unit has the same
DSA as the IOA attached to
the internal cable labelled
″R-2″.
x20300FF (where x is the
same as the first character
of the xFFFFFFF IOA Unit
Address)
D27 Disk unit The disk unit has the same
DSA as the IOA attached to
the internal cable labelled
″R-2″.
x20400FF (where x is the
same as the first character
of the xFFFFFFF IOA Unit
Address)
D28 Disk unit The disk unit has the same
DSA as the IOA attached to
the internal cable labelled
″R-2″.
x20500FF (where x is the
same as the first character
of the xFFFFFFF IOA Unit
Address)
D29 Disk unit The disk unit has the same
DSA as the IOA attached to
the internal cable labelled
″R-2″.
x20600FF (where x is the
same as the first character
of the xFFFFFFF IOA Unit
Address)
D30 Disk unit The disk unit has the same
DSA as the IOA attached to
the internal cable labelled
″R-2″.
x20700FF (where x is the
same as the first character
of the xFFFFFFF IOA Unit
Address)
D31 Disk unit 0001-10-00 400100FF
D32 Disk unit 0001-10-00 400200FF
D33 Disk unit 0001-10-00 400300FF
D34 Disk unit 0001-10-00 400400FF
D35 Disk unit 0001-10-00 400500FF
D36 Disk unit 0001-10-00 410300FF
D37 Disk unit 0001-10-00 410400FF
D38 Disk unit 0001-10-00 410500FF
D39 Disk unit 0001-10-00 410600FF
D40 Disk unit 0001-10-00 410700FF
D41 Optical 0001-10-00 400600FF
D42 Tape 0001-10-00 400700FF
D46 Disk unit 0001-10-00 420300FF
D47 Disk unit 0001-10-00 420400FF
D48 Disk unit 0001-10-00 420500FF
D49 Disk unit 0001-10-00 420600FF
D50 Disk unit 0001-10-00 420700FF
Addresses — Models 870 and 890 with an FC 9094 Base I/O Tower
For use by authorized service providers.
Use the address to find the location. Then go to Locations - Models 870 and 890 with an FC 9094 Base
I/O Tower to find additional information.
Table 1. IOP, IOA, and device address information for FC 9094 Base I/O Tower (on Models 870 and
890)
340 Hardware (Remove and Replace; Part Locations and Listings)