Cpu Ids And Cpu Addresses; Cpu Id Format; Cpu Identification Number Format; Cpu Id Fields - IBM Z9 Planning Manual

CPU IDs and CPU Addresses

Application packages and software products that are licensed to run under specific
CPU identification (CPU ID) information should be checked because they may need
to be updated.
CPU ID information is system-generated for each logical CP in the LP during the LP
activation. It consists of a version code for the CPC machine type, a CPU
identification number that is unique for each logical partition, a model number for
the CPC machine type, and a value of X'8000'.
The Store CPU ID (STIDP) instruction stores the CPU ID for each logical CP in
storage in the following format (Figure 1-4):
0
Figure 1-4. CPU ID Format
Figure 1-5 shows the format of the CPU identification number (bits 8 through 31 of
the CPU ID format).
Legend :
P
Figure 1-5. CPU Identification Number Format

CPU ID Fields

The CPU identification number, with the version code and the machine type,
permits a unique CPU ID for each logical partition.
v The version code for the System z9 is always zero and is not affected by the
v The CPU identification number for each logical CP (see Figure 1-5) consists of
v The following machine types (CPC model numbers) are returned as indicated
1-22
PR/SM Planning Guide
7 8
Version CPU Identification
Code
PPnnnn
Logical partition identifier
n Digit derived from the serial number
operating mode.
a two-digit LP identifier, and digits derived from the serial number of the CPC.
– The logical partition identifier is specified using the Partition identifier field
on the General page in either the reset or image profile used by the LP and
must be unique for each active LP in the configuration.
below:
Machine Type
2094
2096
31 32
Machine Type
Number
Models
System z9 EC
(S08, S18, S28, S38, S54)
System z9 BC
(R07, S07)
47 48 63
8000