Where did the RAM go ..
nick.lunt at patech-solutions.com
Mon Jun 28 07:42:07 CDT 2010
> -----Original Message-----
> From: Mark Watts [mailto:m.watts at eris.qinetiq.com]
> Sent: 28 June 2010 13:45
> To: Nick Lunt
> Cc: linux-poweredge at dell.com
> Subject: Re: Where did the RAM go ..
> On Mon, 2010-06-28 at 13:09 +0100, Nick Lunt wrote:
> > Hi folks
> > R900 running RHEL5.
> > This weekend we moved up to 128GB RAM. However I'm confused with the
> > outputs given.
> > The server has 32 x 4096MB DIMM's, giving a total of 131072MB, which
> > is 128GB.
> > omreport shows the following:
> > Total of Memory Array(s)
> > Attributes : Total Installed Capacity
> > Value : 131072 MB -- 128GB. Spot on, just what I expect
> > Attributes : Total Installed Capacity Available to the OS
> > Value : 128868 MB -- 125GB. So where did the rest go ?
> > # free -m
> > total used free shared
> > buffers cached
> > Mem: 128869 128245 623 0 659
> > 49701
> > -/+ buffers/cache: 77885 50984
> > Swap: 16383 92 16291
> > So where did 3GB disappear to ?
> > Many thanks,
> Is this a 32bit PAE kernel, or x86-64 kernel?
> I have recollections of 32bit kernels using the space below 4GB for PCI
64 Bit server -
# uname -r
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