[Cialug] Question about Xen Domain-0 increasing available Memory

[Kelly Slaugh]

Hello everyone,

Wondering if someone could help me with a question.  Yesterday I increased the memory on my host machine from 16GB to 32GB.  The system started perfectly, however, when I go into my virt-manager and try and increase the available memory from 16260mb to 20480mb not happens.  I looked in the configuration file on the terminal and the Domain-0 configs have memory = 20480.  However on the virt-manager Dom-0 is still reporting 16260mb.  Do I need to restart the Dom-0 in order for it to recognize the change?  Is there an easier command that I can run that will allow Dom-0 to see that the config file has 20480 for memory without taking down Dom-0?

Virt-manager version is 0.6.1

Maybe something isn't right with my memory tables.  When I run the command "free -t -g" I get that total memory = 15 Used = 15 free = 0 shared = 0 buffers = 0 cached = 14; swap = 3 total & 3 free.

If I have 32 GB of memory installed why is it that I the reported memory is only 15GB and not higher?

The Memory configuration is 4x4GB on both Processors.

Sorry this is a novel, any advice would be much appreciated.

Kelly Slaugh