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40GB of RAM shown as 33GB in /proc/meminfo

Yaboto
Super Advisor

40GB of RAM shown as 33GB in /proc/meminfo


My blade server has 40GB of memory installed. I could even verify and confirm it in the server inforfation through the enclosure onboard administrator,

but when I execute cat /proc/meminfo in my RHEL5, it gives me only 33GB as total memory.


Please Advice,
7 REPLIES

Re: 40GB of RAM shown as 33GB in /proc/meminfo

Hi,

Check with free command

e.g:

# free -g

Shows memory in GB.


Cheers
- Thomas
Steven E. Protter
Exalted Contributor

Re: 40GB of RAM shown as 33GB in /proc/meminfo

Shalom shalompeace,

uname -a

It is always helpful in these situations to know if we are dealing with a 64 bit or a 32 bit kernel.

also please post the free command output

SEP
Steven E Protter
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Yaboto
Super Advisor

Re: 40GB of RAM shown as 33GB in /proc/meminfo


[root@rcbdev /]# free -g
total used free shared buffers cached
Mem: 32 2 29 0 0 0
-/+ buffers/cache: 1 30
Swap: 7 0 7
[root@rcbdev /]#


[root@rcbdev /]# uname -a
Linux rcbdev 2.6.18-164.el5xen #1 SMP Tue Aug 18 15:59:52 EDT 2009 x86_64 x86_64
x86_64 GNU/Linux
[root@rcbdev /]#


Thanks for all your help !
Ivan Ferreira
Honored Contributor

Re: 40GB of RAM shown as 33GB in /proc/meminfo

Is it possible that in this hardware there is some memory sharing with another component like the video adapter?
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
sahir_1
Frequent Advisor

Re: 40GB of RAM shown as 33GB in /proc/meminfo

As per your OS and Kernel version RHEL 5.0 can support unlimited memory.
So please provide your server Model and hardware details for further investigation.

All The Best

Sahir
Yaboto
Super Advisor

Re: 40GB of RAM shown as 33GB in /proc/meminfo


Thanks !

I am using a BL460c server.
sahir_1
Frequent Advisor

Re: 40GB of RAM shown as 33GB in /proc/meminfo

Hi,

Please provide the output of "cat /proc/meminfo" and "top -c"

All the Best

Sahir