Power5 Partitioning Concept; Micro-Partitioning Overview On P5 Systems - IBM p5 590 System Handbook

External
storage
Figure 3-1 POWER5 partitioning concept
Micro-Partitioning is supported across the entire POWER5 product line from the
entry to the high-end systems. Table 3-1 provides the maximum number of
logical partitions and shared processor partition the different models.
Table 3-1 Micro-Partitioning overview on p5 systems
Sserver p5 servers
Processors
Dedicated
processor partitions
Shared processor
partitions
It is important to point out that the maximums stated are supported by the
hardware, but the practical limits based on production workload demands may be
significantly lower.
The shared processor partitions are created and managed by the HMC. When
you start creating a partition you have to choose between a shared processor
partition and a dedicated processor partition.
IBM Eserver p5 590 and 595 System Handbook
60
POWER5 Partitioning
Network
2 CPUs 2 CPUs 3 CPUs 3 CPUs
Virtual I/O
Server
Linux
Virtual Virtual
SCSI adapter
I/O
Storage Network
Sto Net
Model Model
510 520
2 2
2 2
20 20
AIX AIX
v5.2 v5.3
Virtual Ethernet
POWER Hypervisor
I/O I/O I/O
Sto Net Sto Net
Model Model Model
550 570 575
4 16 8
4 16 8
40 160 80
6 CPUs
Micro-Partitioning
I/O
HMC
S N
Model Model
590 595
32 64
32 64
254 254