> -----Original Message----- > From: Nux! [mailto:n...@li.nux.ro] > Sent: Friday, January 03, 2014 10:45 AM > To: dev@cloudstack.apache.org > Subject: RE: [VOTE] 3rd round of voting for ASF 4.2.1 RC > > On 03.01.2014 18:31, Edison Su wrote: > > Regarding to KVM binaries, in order to make volume snapshot working > > with cloudstack, we need KVM hypervisor support following features: > > 1. disk only snapshot, don't save vm memory(saving vm memory usually > > takes several seconds. In RHEL <6.3, it will even take few minutes for > > a vm with large memory. It means user vm will be paused for that long > > time, during snapshot, which may be not acceptable for many users). > > 2. be able to backup snapshot from primary storage to secondary > > storage. > > > > Few years ago, I send two patches to KVM community: > > [1]http://lists.gnu.org/archive/html/qemu-devel/2010-09/msg00655.html > > [2]http://lists.nongnu.org/archive/html/qemu-devel/2010-09/msg01662.ht > > ml The [2] is already in KVM upstream, the [1] is not checked in at > > that time, but it's supported later on, with the so called "disk-only" > > snapshot. > > > > In ACS release, we(Citrix QA team) usually test it on RHEL 6, which > > doesn't have above functionalities, that's why I say the kvm snapshot > > is not supported by default. But if you are using latest kvm > > distribution, you will get this feature. Maybe we should support newer > > version of KVM distribution better, such as the upcoming Ubuntu 14.04 > > etc? > > Edison, > > This is a good idea, especially as RHEL7 is coming and it has pretty neat > features.
Yes, RHEL7 must be good, as RHEL6 is tooooooo old:) > Even with EL6 qemu-kvm-rhev that I built[1] most of this stuff is working > great https://fedoraproject.org/wiki/Features/Virt_Live_Snapshots , even > VM snapshots could be supported. > I'll probably get back to the list with more questions about how to enable VM > snapshots later this week. Thanks for your binaries, community can use your binaries if anybody wants to enable KVM snapshot on EL6. > > [1] - http://li.nux.ro/download/nux/tmp/kvm-rhev/el6/ > > -- > Sent from the Delta quadrant using Borg technology! > > Nux! > www.nux.ro
