Linux Support - IBM Power 780 Technical Overview And Introduction

Feature
Simultaneous
multithreading (SMT)
Active Memory Expansion
n
Capacity on Demand
AIX Workload Partitions
a. This version can only support 10 virtual machines per core.
b. Need RHEL 6.3 Errata upgrade to support 20 virtual machines per core.
c. Requires IBM i 7.1 TR2 with PTF SI39077 or later.
d. Requires IBM i 7.1 TR1.
e. Will become fully provisioned device when used by IBM i.
f. Requires AIX 6.1 TL7 or later.
g. Requires AIX 7.1 TL1 or later.
h. Requires IBM i 7.1.4 or later.
i. Requires IBM i 7.1 TR4 PTF group or later. You can access this link for more details:
http://www-912.ibm.com/s_dir/SLKBase.nsf/1ac66549a21402188625680b0002037e/e1877ed7f3b0cfa8862579ec
0048e067?OpenDocument#_Section1
j. Only supports two threads.
k. AIX 6.1 up to TL4 SP2 only supports two threads, and supports four threads as of TL4 SP3.
l. IBM i 6.1.1 and up support SMT4.
m. On AIX 6.1 with TL4 SP2 and later.
n. Available on selected models.

3.4.10 Linux support

IBM Linux Technology Center (LTC) contributes to the development of Linux by providing
support for IBM hardware in Linux distributions. In particular, the LTC makes tools and code
available to the Linux communities to take advantage of the POWER7+ technology and
develop POWER7+ optimized software.
Table 3-6 lists the support of specific programming features for various versions of Linux.
Table 3-6 Linux support for POWER7 features
Features Linux releases
SLES 10 SP4
POWER6 Yes
compatibility
mode
POWER7 mode No
Strong Access No
Ordering
Scale to 256 No
cores/ 1024
threads
Four-way SMT No
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IBM Power 770 and 780 (9117-MMD, 9179-MHD) Technical Overview and Introduction
AIX AIX AIX IBM i
5.3 6.1 7.1 6.1.1
j k
Yes Yes Yes Yes
m
No Yes Yes No
Yes Yes Yes Yes
No Yes Yes No
SLES 11 SP2 RHEL 5.8
Yes Yes
Yes No
Yes No
Yes No
Yes No
IBM i RHEL RHEL
7.1 5.8 6.3
l j
Yes Yes Yes
No No No
Yes Yes Yes
No No No
RHEL 6.3
Yes
Yes
Yes
Yes
Yes
SLES 10 SLES 11
SP4 SP2
j
Yes Yes
No No
Yes Yes
No No
Comments
-
Take advantage of the
POWER7+ and POWER7
features.
Can improve Lx86
performance.
Base OS support is
available.
Better hardware usage.