IBM iSeries 270 Service Manual

Position Possible failing
component
DSA (BBBBCcbb) 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 840, SB3 Processor Tower and FC 9079 Base I/O Tower
For use by authorized service providers.
Use the address to find the location. Then go to Locations — Models 840, SB3 System Unit with
Processor Tower and FC 9079 Base I/O Tower, to find additional information.
Table 1. IOP, IOA, and device address information for FC 9079 Base I/O Tower (on Models 840, SB3)
Position 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.
CB1 Service Processor 0001-70-00 FFFFFFFF
C01 IOP 0001-10-00 FFFFFFFF
C02 Communication, workstation
IOA
0001-10-00 E2FFFFFF
C03 Storage IOA 0001-10-00 4FFFFFFF
C04 Storage IOA The IOA has the same DSA
as the first IOP found in the
following list: C03, C01.
6FFFFFFF
C04 Communication, workstation
IOA
E6FFFFFF
C05 (IXS capable position) IOP yyyy-10-00 FFFFFFFF
C06 (empty if IXS in C05) Storage IOA yyyy-10-00 2FFFFFFF
336 Hardware (Remove and Replace; Part Locations and Listings)

IBM iSeries 270 Specifications

General

Brand	IBM
Model	iSeries 270
Category	Server
Language	English