 | | | physical memory support under RHEL for Opteron | physical memory support under RHEL for Opteron 2004-03-31 - By Rick Stevens
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Chiu, PCM (Peter) wrote:
>
> Hi,
>
> I am just about to order an dual Opteron 248 server to run under RHEL AS.
>
> I would like to double check the physical memory supported - we are getting
> 8 x 2GB PC3200 or PC2700 memory on this server.
>
> I have found something a bit obscure on the RH web page:
> ___
http://www.redhat.com/software/rhel/as/_
>
> in that it said:
>
> **** 64GB is the maximum memory size for X86 systems. Maximum memory
> sizes vary with other architectures.
>
> Can anyone confirm
> a. the maximum memory size for Opterons supported, and
> b. the maximum usable physical memory per process on user applications
As I understand it, RHEL AS3 is available only as an x86 package (in
other words, 32-bit). As such, it is limited to the same 64GB limit as
any 32-bit OS. The per-process limit is 2^32 bytes (4GB).
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
- Rick Stevens, Senior Systems Engineer rstevens@(protected) -
- VitalStream, Inc.
http://www.vitalstream.com
-
- -
- Denial. It ain 't just a river in Egypt anymore! -
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