As you can see from xm info below, we have almost 200GB of memory in our server running CentOS 5.2. But, we can't seem to allocate all the memory. For some reason, the total memory that can be allocated maxes out at 188.4 GB. None of the VMs has hit its own max-mem limit. Even when we set one of the VM's memory so the total is above 188.4 GB, its memory allocation stops when the total memory allocation reaches 188.4 GB.
Thanks for your assistance.
HS
release : 2.6.18-274.7.1.el5xen
version : #1 SMP Thu Oct 20 17:06:34 EDT 2011
machine : x86_64
nr_cpus : 32
nr_nodes : 1
sockets_per_node : 8
cores_per_socket : 4
threads_per_core : 1
cpu_mhz : 2293
hw_caps : 178bfbff:efd3fbff:00000000:00000110:00802009:00000000:000007ff
total_memory : 196607
free_memory : 0
node_to_cpu : node0:0-31
xen_major : 3
xen_minor : 1
xen_extra : .2-274.7.1.el5
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_pagesize : 4096
platform_params : virt_start=0xffff800000000000
xen_changeset : unavailable
cc_compiler : gcc version 4.1.2 20080704 (Red Hat 4.1.2-51)
cc_compile_by : mockbuild
cc_compile_domain : centos.org
cc_compile_date : Thu Oct 20 16:13:16 EDT 2011
xend_config_format : 2
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