Created first draft of the FS https://cwiki.apache.org/confluence/display/CLOUDSTACK/Dynamic+scaling+of+CPU+and+RAM Also created jira issue https://issues.apache.org/jira/browse/CLOUDSTACK-658
Comments? There is an 'open issue' section where I have mentioned some issues that needs to be closed Thanks, Koushik > -----Original Message----- > From: Koushik Das [mailto:koushik....@citrix.com] > Sent: Saturday, December 15, 2012 11:14 PM > To: cloudstack-dev@incubator.apache.org > Subject: [DISCUSS] Scaling up CPU and RAM for running VMs > > Currently CS supports changing CPU and RAM for stopped VM. This is > achieved by changing compute offering of the VM (with new CPU and RAM > values) and then starting it. I am planning to extend the same for running VM > as well. Initially planning to do it for Vmware where CPU and RAM can be > dynamically increased. Support of other HVs can also be added if they > support increasing CPU/RAM. > > Assuming that in the updated compute offering only CPU and RAM has > changed, the deployment planner can either select the same host in which > case the values are dynamically scaled up OR a different one in which case > the operation fails. In future if there is support for live migration > (provided > HV supports it) then another option in the latter case could be to migrate the > VM first and then scale it up. > > I will start working on the FS and share it out sometime next week. > > Comments/suggestions? > > Thanks, > Koushik
