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Rhel6 kernel memory limit at 16gb? [message #44961] Thu, 19 January 2012 10:54 Go to next message
mangelot is currently offline  mangelot
Messages: 14
Registered: January 2012
Junior Member


Is there an memory limit in rhel 6 kernel at 16 gb?
is there also a rhel6 kernel with hugemem support?

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Re: Rhel6 kernel memory limit at 16gb? [message #45020 is a reply to message #44961] Sat, 21 January 2012 08:14 Go to previous messageGo to next message
ragubhat is currently offline  ragubhat
Messages: 9
Registered: August 2008
Location: India
Junior Member
>> Is there an memory limit in rhel 6 kernel at 16 gb?
>>

AFAIK there is no such limit.


>> is there also a rhel6 kernel with hugemem support?
>>

You would be safe off if you put in the x86_64/amd64 platform stock kernel for the newer line of Intel/AMD processors.

--
Ragu

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Re: Rhel6 kernel memory limit at 16gb? [message #45021 is a reply to message #45020] Sat, 21 January 2012 10:39 Go to previous message
mangelot is currently offline  mangelot
Messages: 14
Registered: January 2012
Junior Member

We are using multiple IBM xseries 445 servers
(8x Xeon 3.0 Ghz SMP processors 32bit)
so we cannot install a 64 bit kernel,

rhel5 gives full support of all memory (32GB)
but after install of rhel6 we see only 16GB?

it shows full 32Gb at startup (in bios)
but after starting kernel only 16Gb (free,top...)

any suggestions why?

www.mangelot-hosting.nl

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