IBM eserver p Series Service Manual page 67

FRU Name
Battery
Platform Firmware
SCSI Controller internal
connector Z1
DVD Drive
Tape Drive
Internal DASD 1
Internal DASD 2
Internal DASD 3
Internal DASD 4
SES for DASD in
Processor Subsystem
drawer
SCSI controller ext
connector Z2
Processor bus connector
4-pack DASD backplane
DASD daughter card
Removable media card
Power supply V1
Power supply V2
I/O Subsystem Locations
The tables in this section contain the AIX and physical location codes for I/O subsystems when they are
attached to the processor subsystem drawer. A separate table is shown for each I/O subsystem. In the
tables, the drawer number for the I/O subsystem is represented by dd. The first time that a system is
powered on, the I/O subsystems are numbered according to the order in which they are configured. For
example, if a system is first installed with eight I/O subsystems connected, then the dd values for the
subsystems should number from 2 through 9.
If at a later time, an I/O subsystem is removed from the system and another I/O subsystem is substituted,
the substitute is assigned the next higher number available for its value of dd. In the earlier example, this
is 10.
Also, if an I/O backplane is replaced inside an I/O subsystem and power is applied, the system will
configure the I/O subsystem with the new backplane in the order following the other I/O subsystems. Its
value for dd will not be the same as the one it replaced. In the case of the earlier example, the next higher
value for dd is 10, so a drawer number of 10 is assigned to the new I/O backplane.
Note: If the I/O backplane VPD module is moved to the new I/O backplane, then the I/O subsystem
retains its original dd value.
If the original I/O subsystem or I/O backplane is reinstalled in the system, the system uses the original dd
value for the I/O subsystem.
The following diagram shows what each part of a location code means.
Location AIX
Code Location
Code
U0.1-P2-V3
U0.1-P2/Y1
U0.1-P2/Z1 1Z-08
U0.1-P2/Z1-A0 1Z-08-00-0,0
U0.1-P2/Z1-A1 1Z-08-00-1,0
U0.1-P2/Z1-A8 1Z-08-00-8,0
U0.1-P2/Z1-A9 1Z-08-00-9,0
U0.1-P2/Z1-AA 1Z-08-00-10,0
U0.1-P2/Z1-AB 1Z-08-00-11,0
U0.1-P2/Z1-AF 1Z-08-00-15,0
U0.1-P2/Z2 1Z-09
U0.1-P3
U0.1-P4
U0.1-P4
U0.1-P5
U0.1-V1
U0.1-V2
Physical Logical
Connection Connection
Chapter 1. Reference Information
47