topic ram problem in Operating System - Linux

ram problem

Marco_113 — Mon, 25 Jul 2005 05:23:29 GMT

Hi all.
I've a dl380 server with 8gb ram.

The O.S. is Linux Redhat AS 3.0 update.

At startup the server get correctly the 8GB ram, but when start Linux, with "top" command i see only 3,7 GB memory + 2 GB swap space.
Any suggestion??

THanks

Re: ram problem

Stuart Browne — Mon, 25 Jul 2005 05:29:36 GMT

You're using the wrong kenrel. You want to be using the kernel-enterprise kernel.

Re: ram problem

Irineas — Mon, 25 Jul 2005 16:25:29 GMT

I'll suggest also the use of the enterprise kernel.
And the possibly the use of the par mem=size"N" Wher N = actual size minus 5 MB.
Don't ask why, it works.

Irineas

Re: ram problem

TwoProc — Mon, 25 Jul 2005 16:32:47 GMT

You can get more memory with most any RH kernel. Get set up to recompile/rebuild your kernel. At the step where you run xconfig - change your processor type and features. Change "High Memory Support to 64Gb" and double check the MaxVirtualMemory variable. The continue steps to recompile/rebuild the kernel. For details on how to do so: check the web for most any document on rebuilding the kernel. Search for "RH Linux Kernel Rebuild" or similar.