[Users] How can I create a snapshot for virtual disks only?
Hi, I am testing oVirt engine 3.1 beta release 06-07. I tried snapshots--create button for a VM and it looked like that the snapshot to be created was for both the running state of the system and the virtual disks.I am wondering if there is any way to create the snapshot only for the virtual disks of the VM in engine? -- Shu Ming shum...@linux.vnet.ibm.com IBM China Systems and Technology Laboratory ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] How can I create a snapshot for virtual disks only?
Hi, no. the snapshot is for the entire vm and it's disks. On 06/27/2012 05:31 PM, Shu Ming wrote: Hi, I am testing oVirt engine 3.1 beta release 06-07. I tried snapshots--create button for a VM and it looked like that the snapshot to be created was for both the running state of the system and the virtual disks.I am wondering if there is any way to create the snapshot only for the virtual disks of the VM in engine? -- Dafna Ron ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] How can I create a snapshot for virtual disks only?
On 2012-6-27 23:19, Dafna Ron wrote: Hi, no. the snapshot is for the entire vm and it's disks. On 06/27/2012 05:31 PM, Shu Ming wrote: Hi, I am testing oVirt engine 3.1 beta release 06-07. I tried snapshots--create button for a VM and it looked like that the snapshot to be created was for both the running state of the system and the virtual disks.I am wondering if there is any way to create the snapshot only for the virtual disks of the VM in engine? Do we have future plan to make snapshot for it's disks? -- Shu Ming shum...@linux.vnet.ibm.com IBM China Systems and Technology Laboratory ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] How can I create a snapshot for virtual disks only?
On 2012-6-27 23:30, Michal Skrivanek wrote: That would make sense only when you are powered off, wouldn't it? Otherwise what's the point of disk snapshot with open transactions, buffers in mem, etc, without saving the state of the VM too? I understand syncing virtual disk state with the OS cache is a quite challenge to a snapshot tool developers. However, it is a handy feature for the users just want to back up their data in the disks without stopping VM. As other virtualization solution support this feature, we should narrow the gap to attract more users to oVirt. Thanks, michal On 27 Jun 2012, at 17:26, Shu Ming shum...@linux.vnet.ibm.com wrote: On 2012-6-27 23:19, Dafna Ron wrote: Hi, no. the snapshot is for the entire vm and it's disks. On 06/27/2012 05:31 PM, Shu Ming wrote: Hi, I am testing oVirt engine 3.1 beta release 06-07. I tried snapshots--create button for a VM and it looked like that the snapshot to be created was for both the running state of the system and the virtual disks.I am wondering if there is any way to create the snapshot only for the virtual disks of the VM in engine? Do we have future plan to make snapshot for it's disks? -- Shu Ming shum...@linux.vnet.ibm.com IBM China Systems and Technology Laboratory ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users -- Shu Ming shum...@linux.vnet.ibm.com IBM China Systems and Technology Laboratory ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] How can I create a snapshot for virtual disks only?
On 06/27/2012 08:57 PM, Shu Ming wrote: On 2012-6-27 23:30, Michal Skrivanek wrote: That would make sense only when you are powered off, wouldn't it? Otherwise what's the point of disk snapshot with open transactions, buffers in mem, etc, without saving the state of the VM too? I understand syncing virtual disk state with the OS cache is a quite challenge to a snapshot tool developers. However, it is a handy feature for the users just want to back up their data in the disks without stopping VM. As other virtualization solution support this feature, we should narrow the gap to attract more users to oVirt. actually, live snapshot today is only supported for disks, without the RAM. Thanks, michal On 27 Jun 2012, at 17:26, Shu Ming shum...@linux.vnet.ibm.com wrote: On 2012-6-27 23:19, Dafna Ron wrote: Hi, no. the snapshot is for the entire vm and it's disks. On 06/27/2012 05:31 PM, Shu Ming wrote: Hi, I am testing oVirt engine 3.1 beta release 06-07. I tried snapshots--create button for a VM and it looked like that the snapshot to be created was for both the running state of the system and the virtual disks. I am wondering if there is any way to create the snapshot only for the virtual disks of the VM in engine? Do we have future plan to make snapshot for it's disks? -- Shu Ming shum...@linux.vnet.ibm.com IBM China Systems and Technology Laboratory ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] How can I create a snapshot for virtual disks only?
On 2012-6-28 9:20, Itamar Heim wrote: On 06/27/2012 08:57 PM, Shu Ming wrote: On 2012-6-27 23:30, Michal Skrivanek wrote: That would make sense only when you are powered off, wouldn't it? Otherwise what's the point of disk snapshot with open transactions, buffers in mem, etc, without saving the state of the VM too? I understand syncing virtual disk state with the OS cache is a quite challenge to a snapshot tool developers. However, it is a handy feature for the users just want to back up their data in the disks without stopping VM. As other virtualization solution support this feature, we should narrow the gap to attract more users to oVirt. actually, live snapshot today is only supported for disks, without the RAM. I can not find the button to create a snapshot for disk only in engine 3.1 beta release. Are you talking about a undergoing project? Thanks, michal On 27 Jun 2012, at 17:26, Shu Ming shum...@linux.vnet.ibm.com wrote: On 2012-6-27 23:19, Dafna Ron wrote: Hi, no. the snapshot is for the entire vm and it's disks. On 06/27/2012 05:31 PM, Shu Ming wrote: Hi, I am testing oVirt engine 3.1 beta release 06-07. I tried snapshots--create button for a VM and it looked like that the snapshot to be created was for both the running state of the system and the virtual disks. I am wondering if there is any way to create the snapshot only for the virtual disks of the VM in engine? Do we have future plan to make snapshot for it's disks? -- Shu Ming shum...@linux.vnet.ibm.com IBM China Systems and Technology Laboratory ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users -- Shu Ming shum...@linux.vnet.ibm.com IBM China Systems and Technology Laboratory ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] How can I create a snapshot for virtual disks only?
On 06/27/2012 09:38 PM, Shu Ming wrote: On 2012-6-28 9:20, Itamar Heim wrote: On 06/27/2012 08:57 PM, Shu Ming wrote: On 2012-6-27 23:30, Michal Skrivanek wrote: That would make sense only when you are powered off, wouldn't it? Otherwise what's the point of disk snapshot with open transactions, buffers in mem, etc, without saving the state of the VM too? I understand syncing virtual disk state with the OS cache is a quite challenge to a snapshot tool developers. However, it is a handy feature for the users just want to back up their data in the disks without stopping VM. As other virtualization solution support this feature, we should narrow the gap to attract more users to oVirt. actually, live snapshot today is only supported for disks, without the RAM. I can not find the button to create a snapshot for disk only in engine 3.1 beta release. Are you talking about a undergoing project? live snapshot is for disks only, not for RAM. so the live snapshot button only snapshots the disks already. Thanks, michal On 27 Jun 2012, at 17:26, Shu Ming shum...@linux.vnet.ibm.com wrote: On 2012-6-27 23:19, Dafna Ron wrote: Hi, no. the snapshot is for the entire vm and it's disks. On 06/27/2012 05:31 PM, Shu Ming wrote: Hi, I am testing oVirt engine 3.1 beta release 06-07. I tried snapshots--create button for a VM and it looked like that the snapshot to be created was for both the running state of the system and the virtual disks. I am wondering if there is any way to create the snapshot only for the virtual disks of the VM in engine? Do we have future plan to make snapshot for it's disks? -- Shu Ming shum...@linux.vnet.ibm.com IBM China Systems and Technology Laboratory ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] How can I create a snapshot for virtual disks only?
On 2012-6-28 10:38, Itamar Heim wrote: On 06/27/2012 10:29 PM, Shu Ming wrote: Sorry for confusion here. I attached the snapshot created. I don't think it is a standalone snapshot for disks(all eight) only. And the usage of the disk image snapshot should be bound with OS memory snapshot. The there is currently no OS memory snapshot Enhh, interesting. So it is not live snapshot? The VM must be paused to do the snapshot in my engine. Also, I hit a bug to resume the VM after the snapshot was done. The VM was always in pause state after I clicked the resume button after the snapshot was done. I looked into the VM by VNC and VNC console showed that the VM was in frozen state. Has anyone seen these or has it been fixed in the upstream? other problem is the VM must be paused when the snapshot is undergoing. On 2012-6-28 10:16, Itamar Heim wrote: On 06/27/2012 09:54 PM, Rami Vaknin wrote: On 06/28/2012 04:51 AM, Itamar Heim wrote: On 06/27/2012 09:38 PM, Shu Ming wrote: On 2012-6-28 9:20, Itamar Heim wrote: On 06/27/2012 08:57 PM, Shu Ming wrote: On 2012-6-27 23:30, Michal Skrivanek wrote: That would make sense only when you are powered off, wouldn't it? Otherwise what's the point of disk snapshot with open transactions, buffers in mem, etc, without saving the state of the VM too? I understand syncing virtual disk state with the OS cache is a quite challenge to a snapshot tool developers. However, it is a handy feature for the users just want to back up their data in the disks without stopping VM. As other virtualization solution support this feature, we should narrow the gap to attract more users to oVirt. actually, live snapshot today is only supported for disks, without the RAM. I can not find the button to create a snapshot for disk only in engine 3.1 beta release. Are you talking about a undergoing project? The is no option to save a single disk in webadmin. live snapshot is for disks only, not for RAM. so the live snapshot button only snapshots the disks already. there is a mix of two things here: 1. taking snapshot of a subset of the disks. 2. taking snapshot of disks + ram Thanks, michal On 27 Jun 2012, at 17:26, Shu Ming shum...@linux.vnet.ibm.com wrote: On 2012-6-27 23:19, Dafna Ron wrote: Hi, no. the snapshot is for the entire vm and it's disks. On 06/27/2012 05:31 PM, Shu Ming wrote: Hi, I am testing oVirt engine 3.1 beta release 06-07. I tried snapshots--create button for a VM and it looked like that the snapshot to be created was for both the running state of the system and the virtual disks. I am wondering if there is any way to create the snapshot only for the virtual disks of the VM in engine? Do we have future plan to make snapshot for it's disks? -- Shu Ming shum...@linux.vnet.ibm.com IBM China Systems and Technology Laboratory ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users -- Shu Ming shum...@linux.vnet.ibm.com IBM China Systems and Technology Laboratory ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
