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Features of Red Hat Enterprise Linux 5
Table 2-7 describes several features supported by the various Red Hat
Enterprise Linux 5 Editions.
Table 2-7 Features of Red Hat Enterprise Linux 5
Features
Server support limits as defined by Red Hat Enterprise Linux Product Subscription
Maximum physical CPUs (sockets)
Maximum memory
Maximum virtualized guests, instances
Technology capabilities and limits
Maximum Logical Processors (x86)
Maximum Logical Processors (EM64T and
a
AMD64)
Number of x3950 M2 nodes
Memory: x86 (32-bit)
Memory: x64 (64-bit)
NUMA support
a. Red Hat defines a logical CPU as any schedulable entity. So every core/thread in a multi-core/thread
processor is a logical CPU.
b. Certified limits reflect the current state of system testing by Red Hat and its partners, and set the
upper limit of support provided by any Red Hat Enterprise Linux subscription if not otherwise limited
explicitly by the subscription terms. Certified limits are subject to change as on-going testing
completes.
c. The x86 Hugemem kernel is not provided in Red Hat Enterprise Linux 5.
For more information, review these Web pages:
Red Hat Enterprise Linux Server Version comparison chart
http://www.redhat.com/rhel/compare/
IBM ServerProven NOS Support for RedHat Enterprise Linux chart
http://www.ibm.com/servers/eserver/serverproven/compat/us/nos/redcha
t.html
78
Planning, Installing, and Managing the IBM System x3950 M2
Base server product
subscription
2
Unlimited
4
a
8 (assuming maximum of
quad-core processors limited
by subscription to 2 sockets)
8 (limited by subscription to 2
sockets)
One
c
16 GB
256 (certified)
1 TB (theoretical)
Yes
Advanced platform
product subscription
Unlimited
Unlimited
Unlimited
32
64 (certified)
255 (theoretical)
Two
c
16 GB
b
256 (certified)
1 TB (theoretical)
Yes
b
b
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