[Xen-users] RAM issue

["Arpan Jindal" <jindalarpan@xxxxxxxxx>]

Hi All

I am having 2 physical machine of exactly same configuration and same
hardware.  Both are having 16GB of RAM. But when I check one machine
its shows only 6GB but other one shows complete physical memory(16GB).
Is there any settings that need to be changed. To make complete 16 gb
memory available.

Both are having RHEL 5.2 installed and having xen that come bundled with it.

But in BIOS both machine is showing 16GB.

Output of the machine where 16 memory is available.

[root@mumxen01 ~]# free

             total       used       free     shared    buffers     cached
Mem:      14429184     973244   13455940          0      56728     398408
-/+ buffers/cache:     518108   13911076
Swap:     10241428          0   10241428

[root@mumxen01 ~]# xm list
Name                                      ID Mem(MiB) VCPUs State   Time(s)
Domain-0                                   0    14091     8 r-----    175.8
server201                                 3     2064     1 -b----     10.1



Output of the machine where 16GB memory is not available .

[root@mumxen002 ~]# free
             total       used       free     shared    buffers     cached
Mem:       6406144    6380060      26084          0      67128    5569972
-/+ buffers/cache:     742960    5663184
Swap:      5245212        148    5245064

[root@mumxen002 ~]# xm list
Name                                      ID Mem(MiB) VCPUs State   Time(s)
Domain-0                                   0     6256     8 r----- 180836.0
server101                                 1     2007     1 -b----  28981.2
server102                                 2      519     1 -b----  25015.7
server103                                 3      519     1 -b----  28607.5
server104                                 4     1031     1 -b----  84507.4
server105                                 5      519     1 -b----  38746.8
server106                                 6      519     1 r-----  28538.8
server107                                 7      519     1 -b----  27493.2
server108                                 8      519     1 -b----  27084.5
server109                                 9      519     1 -b----  25775.3
server110                                10      519     1 -b----  21892.7
server111                                11      519     1 -b----  19579.8
server112                                12      519     1 -b----  57347.3
server113                                17      519     1 -b----  34197.6
server114                                16      519     1 -b----  19571.7
server115                                18      519     1 -b----  19732.2


Thanks in Advance

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