this oracle paper http://www.oracle.com/technetwork/topics/virtualization/ovm-hardpart-167739.pdf says that for hard partitioning we have to edit the vm.cfg file and other messages i have posted here tell me that this still enables HA but only disables live migration and the like
but if i have hyperthreading enabled - which i have , a 40 core server DL580 where vmserver and vmmanager show 80 cores
if i edit vm.cfg to to enable hard partitioning and say cpus = '0-3' does that fix the guest to using 4 cores (which would be 8 out of the 80 recognised by ovm) or 4 of the entities seen as cores to ovm (4 threads out of the 80)
licensing...
the main reason the business has chosen ovm over vmware is the ability to hard partition saving us a fortune on oracle licensing (well support - weve already bought the licenses) i have databases running on 24 cores where the server is >95 idle at peak! there is much documentation around (http://www.oracle.com/technetwork/database/clustering/oracle-rac-in-oracle-vm-environment-131948.pdf) and the now removed (partitioning.pdf) stating that oracle will allow you to license a subset of the cores via hard partitioning (unlike vmware) - although as pointed out in
9942969
the new doc states that editing vm.cfg is not supported
so whats the deal? do i have to revert to ovm2?
can you confirm?
shrinking power.....
if i have a 10 core server without HT turned on
and i have 2 guests configured to use 5 processors
if i then enable HT so that ovm then reports there are 20 cores available
has the effective CPU capacity of my guests just been reduced as they still say 5 processors (out of the now 20 reported for the vmserver?)
thanks