Question on memory usage

SUSE Product Topics SLES Configure-Administer
1

Hi There,

I have a hardware with 32Gb of RAM and I can only see 20GB on suse enterprise linux 11 SP2 with XEN hypervisor, is this normal?

Thanks for you support.

jko

2

On 04/22/2013 06:24 PM, jkostic wrote:[color=blue]

Hi There,

I have a hardware with 32Gb of RAM and I can only see 20GB on suse
enterprise linux 11 SP2 with XEN hypervisor, is this normal?

Thanks for you support.

jko

[/color]

perhaps not an answer, but what does:

xm info

show with regards to how much memory you have?

Xen is a kernel. The SLES 11 SP2 you’re interfacing with is actually a special
guest called Dom0.

3

Hello
The output is the following:

linux-jko:~ # /usr/sbin/xm info
host : linux-jko
release : 3.0.13-0.27-xen
version : #1 SMP Wed Feb 15 13:33:49 UTC 2012 (d73692b)
machine : x86_64
nr_cpus : 16
nr_nodes : 2
cores_per_socket : 4
threads_per_core : 2
cpu_mhz : 2400
hw_caps : bfebfbff:28100800:00000000:00003b40:009ce3bd:00000000:00000001:00000000
virt_caps : hvm
total_memory : 32759
free_memory : 165
free_cpus : 0
max_free_memory : 31887
max_para_memory : 31883
max_hvm_memory : 31800
xen_major : 4
xen_minor : 1
xen_extra : .2_14-0.5.5
xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler : credit
xen_pagesize : 4096
platform_params : virt_start=0xffff800000000000
xen_changeset : 23174
xen_commandline : vga=mode-0x31a
cc_compiler : gcc version 4.3.4 [gcc-4_3-branch revision 152973] (SUSE Linux)
cc_compile_by : abuild
cc_compile_domain :
cc_compile_date : Wed Feb 15 18:12:45 UTC 2012
xend_config_format : 4

So I can see my 32Gb of RAM
This mean that only 20GB is allocated to dom0
Possible to configure this memory allocated to dom0?

Thanks for your time
jko

4

jkostic wrote:
[color=blue]

So I can see my 32Gb of RAM
This mean that only 20GB is allocated to dom0
Possible to configure this memory allocated to dom0?[/color]

This TID discusses Dom0 memory allocation
http://www.novell.com/support/kb/doc.php?id=3559698

–
Kevin Boyle - Knowledge Partner
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