You're saying that growing doesn't work?
On Thu, Feb 28, 2013 at 7:54 AM, Rajesh Battala <rajesh.batt...@citrix.com> wrote: > Hi Marcus, > Increasing the size of disk is supported for the qcow2, I had verified it on > rhel6.3. I had given the observations below. > It would be good if you allow resize on qcow2 if it's going to be increase in > size than shrink. > > Thanks > Rajesh Battala > > >> -----Original Message----- >> From: Marcus Sorensen [mailto:shadow...@gmail.com] >> Sent: Thursday, February 28, 2013 8:16 PM >> To: cloudstack-dev@incubator.apache.org >> Subject: Re: [ACS41]Unable to shrink volumes of type QCOW2 >> >> This is why I disabled it via the code pointed out. It was unreliable. >> When I originally developed it, it seemed to work. And then a few weeks later >> during testing we got "qemu-img: This image format does not support resize". >> Growing works fine, shrinking doesn't seem to be reliable, or depends on a >> particular version of qemu-img or something... I'll need to investigate if I >> can >> find the condition in which it worked. But anyway, that's why shrinking is in >> resizevolume.sh, but disallowed in the code. >> >> >> On Thu, Feb 28, 2013 at 3:54 AM, Rajesh Battala <rajesh.batt...@citrix.com> >> wrote: >> > I had tried on rhel 6.3, >> > Increase the volume size is happening without error. But while decreasing >> > the >> size its showing the error format not supported. >> > >> > qemu-img resize myvol.qcow2 +50G >> > Image resized. >> > >> > [root@kvm57 ~]# qemu-img resize myvol.qcow2 40G >> > qemu-img: This image format does not support resize >> > >> > >> > Thanks >> > Rajesh Battala >> > >> >> -----Original Message----- >> >> From: Wido den Hollander [mailto:w...@widodh.nl] >> >> Sent: Thursday, February 28, 2013 3:34 PM >> >> To: cloudstack-dev@incubator.apache.org >> >> Subject: Re: [ACS41]Unable to shrink volumes of type QCOW2 >> >> >> >> >> >> >> >> On 02/28/2013 10:53 AM, Rajesh Battala wrote: >> >> > When I was going through the source and resizevolume.sh, In the >> >> > libvirtcomputing resources, we are restricting to resize only for "raw" >> >> > disks. >> >> > But in the resizevolume.sh which will actually do the resizing of >> >> > the disks, this >> >> file has the function resizeqcow2() which is actually has the >> >> capability to resize >> >> qcow2 image. >> >> > >> >> > From this source http://linux.die.net/man/1/qemu-img >> >> > qemu-img resize supports qcow2 image format also. Am not sure why >> >> > we are >> >> restricting not to convert qcow2 images. >> >> >> >> Indeed, resizevolume.sh allows QCOW2 files to be shrunk. >> >> >> >> BUT, I just tried it on my desktop and that fails: >> >> >> >> wido@wido-desktop:~$ qemu-img create -f qcow2 volume.qcow2 50G >> >> Formatting 'volume.qcow2', fmt=qcow2 size=53687091200 encryption=off >> >> cluster_size=65536 >> >> wido@wido-desktop:~$ qemu-img resize volume.qcow2 -20G >> >> qemu-img: This image format does not support resize >> >> wido@wido-desktop:~$ >> >> >> >> On my desktop at the office it works, but that is running a manually >> >> compiled Qemu version. >> >> >> >> So the stock Ubuntu 12.04 Qemu version does not support shrinking >> >> QCOW2 files. Not sure about CentOS/RHEL 6.3. >> >> >> >> Wido >> >> >> >> > >> >> > >> >> > Thanks >> >> > Rajesh Battala >> >> > >> >> > >> >> >> -----Original Message----- >> >> >> From: Wido den Hollander [mailto:w...@widodh.nl] >> >> >> Sent: Thursday, February 28, 2013 3:05 PM >> >> >> To: cloudstack-dev@incubator.apache.org >> >> >> Subject: Re: [ACS41]Unable to shrink volumes of type QCOW2 >> >> >> >> >> >> >> >> >> >> >> >> On 02/28/2013 07:39 AM, Marcus Sorensen wrote: >> >> >>> On Wed, Feb 27, 2013 at 6:58 AM, Wido den Hollander >> >> >>> <w...@widodh.nl> >> >> >> wrote: >> >> >>>> On 02/27/2013 12:45 PM, Sailaja Mada wrote: >> >> >>>>> >> >> >>>>> Hi, >> >> >>>>> >> >> >>>>> Out of my curiosity , I tried to resize the volume with shrink >> >> >>>>> option set to true . It failed to resize volume from 20 GB to >> >> >>>>> 10 GB . This is with KVM >> >> >>>>> 6.3 hypervisor. Do we have support this feature with KVM ? >> >> >>>>> >> >> >>>>> 2013-02-27 17:01:55,052 DEBUG [cloud.api.ApiServlet] >> >> >>>>> (catalina-exec-1:null) ===END=== 10.144.7.13 -- GET >> >> >>>>> command=resizeVolume&id=ff94b87c-973c-4698-9fd2- >> >> >> 4a1375f5a7c0&shrinko >> >> >>>>> k=true&diskofferingid=8c61068f-f997-48f5-a8ee-dfe8fd3571f2&size >> >> >>>>> =10 >> >> >>>>> &r >> >> >>>>> >> >> >> >> >> >> esponse=json&sessionkey=Ijl3uimE7kcZYn0P%2FK4AEvh%2B3fw%3D&_=136196 >> >> >> 4 >> >> >>>>> 737075 >> >> >>>>> 2013-02-27 17:01:55,054 DEBUG [cloud.async.AsyncJobManagerImpl] >> >> >>>>> (Job-Executor-66:job-128) Executing >> >> >>>>> org.apache.cloudstack.api.command.user.volume.ResizeVolumeCmd >> >> >>>>> for >> >> >>>>> job-128 >> >> >>>>> 2013-02-27 17:01:55,078 DEBUG [agent.transport.Request] >> >> >>>>> (Job-Executor-66:job-128) Seq 1-648544436: Sending { Cmd , MgmtId: >> >> >>>>> 55487956346259, via: 1, Ver: v1, Flags: 100011, >> >> >>>>> [{"storage.ResizeVolumeCommand":{"path":"d6a5ce3c-ca40-426d- >> b0b >> >> >>>>> d- >> >> >> 703 >> >> >>>>> 567eda58f","pool":{"id":200,"uuid":"17700ab0-df5a-3047-a631-588 >> >> >>>>> d93 >> >> >>>>> dd >> >> >>>>> >> 749a","host":"10.102.192.100","path":"/cpg_vol/sailaja/asf41kvmps"," >> >> >>>>> >> port":2049,"type":"NetworkFilesystem"},"vmInstance":"none","newSize" >> >> >>>>> :10737418240,"currentSize":21474836480,"shrinkOk":true,"wait":0 >> >> >>>>> }}] >> >> >>>>> } >> >> >>>>> 2013-02-27 17:01:55,192 DEBUG [agent.transport.Request] >> >> >>>>> (AgentManager-Handler-10:null) Seq 1-648544436: Processing: { Ans: >> >> >>>>> , >> >> >>>>> MgmtId: 55487956346259, via: 1, Ver: v1, Flags: 10, >> >> >>>>> [{"storage.ResizeVolumeAnswer":{"newSize":0,"result":false,"details" >> >> >>>>> :"Unable to shrink volumes of type QCOW2","wait":0}}] } >> >> >>>>> 2013-02-27 17:01:55,192 DEBUG [agent.transport.Request] >> >> >>>>> (Job-Executor-66:job-128) Seq 1-648544436: Received: { Ans: , >> MgmtId: >> >> >>>>> 55487956346259, via: 1, Ver: v1, Flags: 10, { >> >> >>>>> ResizeVolumeAnswer } } >> >> >>>>> 2013-02-27 17:01:55,192 DEBUG >> >> >>>>> [cloud.storage.StorageManagerImpl] >> >> >>>>> (Job-Executor-66:job-128) Resize: returned 'Unable to shrink >> >> >>>>> volumes of type QCOW2' >> >> >>>>> 2013-02-27 17:01:55,201 DEBUG [cloud.async.AsyncJobManagerImpl] >> >> >>>>> (Job-Executor-66:job-128) Complete async job-128, jobStatus: 2, >> >> >> resultCode: >> >> >>>>> 530, result: Error Code: 530 Error text: Failed to resize >> >> >>>>> volume >> >> >>>>> 2013-02-27 17:01:58,073 DEBUG [cloud.api.ApiServlet] >> >> >>>>> (catalina-exec-17:null) ===START=== 10.144.7.13 -- GET >> >> >>>>> command=queryAsyncJobResult&jobId=68fdb060-343c-4a64-8ccd- >> >> >> ce738da07a >> >> >>>>> >> >> >> >> >> >> 9b&response=json&sessionkey=Ijl3uimE7kcZYn0P%2FK4AEvh%2B3fw%3D&_=13 >> >> >> 6 >> >> >>>>> 1964740184 >> >> >>>>> 2013-02-27 17:01:58,081 DEBUG [cloud.async.AsyncJobManagerImpl] >> >> >>>>> (catalina-exec-17:null) Async job-128 completed >> >> >>>>> 2013-02-27 17:01:58,085 DEBUG [cloud.api.ApiServlet] >> >> >>>>> (catalina-exec-17:null) ===END=== 10.144.7.13 -- GET >> >> >>>>> command=queryAsyncJobResult&jobId=68fdb060-343c-4a64-8ccd- >> >> >> ce738da07a >> >> >>>>> >> >> >> >> >> >> 9b&response=json&sessionkey=Ijl3uimE7kcZYn0P%2FK4AEvh%2B3fw%3D&_=13 >> >> >> 6 >> >> >>>>> 1964740184 >> >> >>>>> >> >> >>>>> >> >> >>>> >> >> >>>> Checking the code I found this in LibvirtComputingResource: >> >> >>>> >> >> >>>> boolean shrinkOk = cmd.getShrinkOk(); >> >> >>>> >> >> >>>> } else if (type.equals("QCOW2") && shrinkOk) { >> >> >>>> return new ResizeVolumeAnswer(cmd, false, "Unable to shrink >> >> >>>> volumes of type " + type); } >> >> >>>> >> >> >>>> Seems like a logical mistake? Shouldn't that be !shrinkOk? >> >> >>>> >> >> >>> >> >> >>> Not a logical mistake. It's saying if you are trying to shrink a >> >> >>> qcow2 image, it's not supported. >> >> >>> >> >> >> >> >> >> Heh? QCOW2 does support shrinking? So why isn't it allowed then? >> >> >> >> >> >> Wido >> >> >> >> >> >>>> Wido >> >> >>>> >> >> >>>>> Thanks, >> >> >>>>> Sailaja.M >> >> >>>>> >> >> >>>> >> >> > [] >> >> >
