Regarding RAM replacement Post: 302698245

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Operating Systems Linux Red Hat Regarding RAM replacement Post 302698245 by Lem on Sunday 9th of September 2012 06:27:22 AM

09-09-2012

Registered User

I don't know well Red Hat, but here What are the Red Hat Enterprise Linux limits? — Bull On-line Support Portal you can read:

Quote:

RHEL-5 kernels:
i686 - no PAE, no hugemem patches, can address up to 4GB of memory
i686-PAE - PAE, no hugemem patches, can reliably run with around 16GB

So, in summary, if customers need to use > 16GB of memory, the absolute best suggestion is to use RHEL-5 x86_64, which suffers from none of these limitations.

I didn't find anything about a RHEL-5 i686 SMP kernel, but the RHEL-4 i686 SMP kernel is limited to 16GB too.

So at least be careful with your OS. With as little as 4GB RAM and up, a 64bit OS would be a wise choice.

If you're concerned with you hardware capabilities too, apart from reading your hardware manual you could try:
# dmidecode -t 16

Read man dmidecode for details.
--
Bye

Lem

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