Actually KVM snapshot was implemented long ago but was not merged to trunk due to 1) it needs a modified libvirt-java (which is supposed to be included in latest release now), 2) it is not fully tested, 3) unable to meter the usage 4) it has some known issue like your qcow2 disk file will grow after snapshot but will not shrink when snapshot is removed.
-Mice > Len, > > +1 from me re renaming 'Volume Snapshots' to 'Volume Backups' > > Why don’t you log a feature request > > Regards > > Geoff Higginbottom > > D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581 > > geoff.higginbot...@shapeblue.com > > -----Original Message----- > From: Len Bellemore [mailto:len.bellem...@controlcircle.com] > Sent: 06 November 2013 12:40 > To: users@cloudstack.apache.org > Subject: RE: CS 4.2 VM snapshot is not enabled for hypervisor type: KVM > > I stumbled upon this feature yesterday on my XenServer cluster - I too > thought that it would only work on VMWare. > I'm using XenServer 6.1 and can verify that the vm snapshot works. I'm not > running the Enterprise edition, so memory snapshots fail with a licensing > error. > > With this feature enabled, what I would love to see is the old style > snapshots renamed to "backups" because they aren't really snapshots in the > modern vmware/XenServer sense. You can't really roll back to them, and a > snapshot indicates quick point in time image of the vm, something that the > old style snapshots do not do. > > Well done for getting true snapshots sorted out. This is a feature my users > are very happy about. > > Len > > > > -----Original Message----- > From: Geoff Higginbottom [mailto:geoff.higginbot...@shapeblue.com] > Sent: 06 November 2013 09:16 > To: users@cloudstack.apache.org > Subject: RE: CS 4.2 VM snapshot is not enabled for hypervisor type: KVM > > Ryan is correct, XenServer does support VM Snapshots when using CloudStack > 4.2. Like Ryan I have been using it with XenServer 6.2 but I cannot see why > it would not work with earlier versions of XenServer as long as they are > licensed Enterprise versions (6.2 is now opensource) > > https://cwiki.apache.org/confluence/display/CLOUDSTACK/VM+Snapshots does > state that XenServer supports 'Memory-Disk' snapshots, but this was written > prior to the release of OpenSource Citrix XenServer 6.2 which includes > features previously only available in the Enterprise version. > > FYI > > Regards > > Geoff Higginbottom > > D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581 > > geoff.higginbot...@shapeblue.com > > -----Original Message----- > From: ryanlei750...@gmail.com [mailto:ryanlei750...@gmail.com] On Behalf Of > Ryan Lei > Sent: 06 November 2013 05:12 > To: users@cloudstack.apache.org > Subject: Re: CS 4.2 VM snapshot is not enabled for hypervisor type: KVM > > https://cwiki.apache.org/confluence/display/CLOUDSTACK/VM+Snapshots > > From my experience, though, VM snapshot also supports XenServer (mine is 6.2). > It also facilitates XenServer's native snapshot capibility, and works > flawlessly. > I have no idea why the release notes and admin guide ONLY mention VMware, as > opposed to the wiki. :( > > > ------------------------------------------------------------------------------------------- > Yu-Heng (Ryan) Lei, Associate Researcher Chunghwa Telecom Laboratories / > Cloud Computing Laboratory > ryan...@cht.com.tw<https://email.cht.com.tw/owa/redir.aspx?C=-wE1FEC3G0SWYpVkiWo8SsDdf3ZqO9AIuAPTzRnFYCUi-z4YljtI_hyVKkNHfn9F1Bn-vUWJnQ4.&URL=mailto%3aryanlei%40cht.com.tw> > or ryanlei750...@gmail.com > > > > On Wed, Nov 6, 2013 at 1:02 PM, Sanjeev Neelarapu < > sanjeev.neelar...@citrix.com> wrote: > >> Hi, >> >> Instance Snapshot is only supported on VMWare. It uses VMWare native >> snapshot facility. >> Please refer >> http://cloudstack.apache.org/docs/en-US/Apache_CloudStack/4.2.0/html/A >> dmin_Guide/vm-snapshots.html >> >> Thanks, >> Sanjeev >> >> -----Original Message----- >> From: motty cruz [mailto:motty.c...@gmail.com] >> Sent: Tuesday, November 05, 2013 9:56 PM >> To: users@cloudstack.apache.org >> Subject: Re: CS 4.2 VM snapshot is not enabled for hypervisor type: >> KVM >> >> Hi Sebastien, >> >> I was not able to solve the snapshot issue, I can take a snapshot of a >> disk but not of the "instance", I still get the "VM snapshot is not >> enabled for hypervisor type: KVM" >> >> I enabled KVM snapshot in Global Settings, someone suggested to turn >> off the instance, which I did but no success, >> >> Thanks, >> >> >> >> On Mon, Nov 4, 2013 at 11:42 PM, Sebastien Goasguen <run...@gmail.com >>> wrote: >> >>> >>> On Oct 31, 2013, at 6:40 PM, motty cruz <motty.c...@gmail.com> wrote: >>> >>>> 2013-10-31 13:03:50,030 DEBUG [agent.manager.AgentAttache] >>>> (AgentManager-Handler-9:null) Seq 5-1100677197: No more commands >>>> found >>>> 2013-10-31 13:03:50,056 DEBUG >>>> [storage.snapshot.SnapshotManagerImpl] >>>> (Job-Executor-3:job-128 = [ 4f046198-2bf6-4fac-9a80-9debb05ee76b >>>> ]) >>> Failed >>>> to create snapshot >>>> com.cloud.utils.exception.CloudRuntimeException: clvmd not running on >>>> node kvm2.fqdn.comDisk >>> /dev/hitachi-2/ff599482-7bcf-41e6-9ca4-738f4fb94bc9 >>>> has no snapshot called 71bb6af455688c8d1de850551fad31c3. >>>> at >>>> >>> org.apache.cloudstack.storage.snapshot.SnapshotServiceImpl.backupSna >>> ps >>> hot(Sn >>>> >>> >>> Motty, did you get that solved ? >>> It seemed to be a CLVM error. Marcuse Sorensen is the expert in CLVM >>> :) >>> >>> -sebastien >>> >>>> >>>> On Thu, Oct 31, 2013 at 1:01 PM, Sebastien Goasguen >>>> <run...@gmail.com >>>> wrote: >>>> >>>>> Anything in the management server logs ? >>>>> >>>>> On Oct 31, 2013, at 3:53 PM, motty cruz <motty.c...@gmail.com> wrote: >>>>> >>>>>> yes I did restart the management server, twice. but not >>>>>> successful, >>>>>> >>>>>> >>>>>> On Thu, Oct 31, 2013 at 12:47 PM, Sebastien Goasguen >>>>>> <run...@gmail.com >>>>>> wrote: >>>>>> >>>>>>> >>>>>>> On Oct 31, 2013, at 3:32 PM, motty cruz <motty.c...@gmail.com> >> wrote: >>>>>>> >>>>>>>> Hello, >>>>>>>> I'm having issues with snapshot, when trying to take a >>>>>>>> snapshot I get >>>>> the >>>>>>>> following error: "VM snapshot is not enabled for hypervisor type: >>> VKM" >>>>>>>> >>>>>>>> but I do have it enable in Global settings, am I missing a step? >>>>>>>> kvm.snapshot.enabled = true, >>>>>>>> >>>>>>> >>>>>>> Did you restart the management server ? >>>>>>> >>>>>>>> >>>>>>>> Thanks, >>>>>>> >>>>>>> >>>>> >>>>> >>> >>> >> > This email and any attachments to it may be confidential and are intended > solely for the use of the individual to whom it is addressed. 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