Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain?
Snapshot removal (merge) includes a create volume phase. This volume is temporary and gets removed once the snapshot merge is completed. Its size is the size of the disk. That means that in order to remove the snapshot, the storage domain should have available size that is equal to the disk size. Elad Ben Aharon RHEV-QE storage - Original Message - From: Rik Theys rik.th...@esat.kuleuven.be To: users@ovirt.org Sent: Tuesday, 10 February, 2015 12:00:10 PM Subject: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Hi, I'm running the ovirt engine 3.4 series. I've created a snapshot of a VM with an OS and data disk before upgrading the machine. The upgrade went fine and I now want to remove the snapshot. Unfortunately this fails with the error: Cannot remove Snapshot. Low disk space on target Storage Domain stadius-virt2_PERC. So I can't free disk space by removing the snapshot because I don't have enough space? When I look at the VM the disks are shown as preallocated (which is what I selected during installation). When I look at the storage tab and list the disks in my storage domain, the disks are now shown as thin provisioned with the actual size virtual size. How can I remove this snapshot? I don't have enough free disk space in my storage domain to duplicate the data disk of my VM. Regards, Rik -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee +32(0)16/32.11.07 Any errors in spelling, tact or fact are transmission errors ___ 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: [ovirt-users] Can't remove snapshot due to low disk space on storage domain?
*equals or larger than the disk size - Original Message - From: Elad Ben Aharon ebena...@redhat.com To: Rik Theys rik.th...@esat.kuleuven.be Cc: users@ovirt.org Sent: Wednesday, 11 February, 2015 12:18:35 PM Subject: Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Snapshot removal (merge) includes a create volume phase. This volume is temporary and gets removed once the snapshot merge is completed. Its size is the size of the disk. That means that in order to remove the snapshot, the storage domain should have available size that is equal to the disk size. Elad Ben Aharon RHEV-QE storage - Original Message - From: Rik Theys rik.th...@esat.kuleuven.be To: users@ovirt.org Sent: Tuesday, 10 February, 2015 12:00:10 PM Subject: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Hi, I'm running the ovirt engine 3.4 series. I've created a snapshot of a VM with an OS and data disk before upgrading the machine. The upgrade went fine and I now want to remove the snapshot. Unfortunately this fails with the error: Cannot remove Snapshot. Low disk space on target Storage Domain stadius-virt2_PERC. So I can't free disk space by removing the snapshot because I don't have enough space? When I look at the VM the disks are shown as preallocated (which is what I selected during installation). When I look at the storage tab and list the disks in my storage domain, the disks are now shown as thin provisioned with the actual size virtual size. How can I remove this snapshot? I don't have enough free disk space in my storage domain to duplicate the data disk of my VM. Regards, Rik -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee +32(0)16/32.11.07 Any errors in spelling, tact or fact are transmission errors ___ 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 ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain?
Hi, Thats unfortunate :-(. It would have been great if oVirt told me during the creation of the snapshot that I would be unable to remove it later due to unsufficient free space in the storage domain :-). The VM has two disks - a small and a large one - so the snapshot contains both. Can I still remove the large disk while it has snapshots? Luckily the used disk space in the (preallocated) large disk is low enough so I can fit it on another temporary disk then. Does the free space have to be in the same storage domain, or can oVirt use another storage domain for the temporary volume? IOW, can I add an NFS storage domain which oVirt can use to create the temporary disk on? Regards, Rik On 02/11/2015 12:57 PM, Elad Ben Aharon wrote: *equals or larger than the disk size *From: *Elad Ben Aharon ebena...@redhat.com *To: *Rik Theys rik.th...@esat.kuleuven.be *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 12:18:35 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk spaceonstorage domain? Snapshot removal (merge) includes a create volume phase. This volume is temporary and gets removed once the snapshot merge is completed. Its size is the size of the disk. That means that in order to remove the snapshot, the storage domain should have available size that is equal to the disk size. Elad Ben Aharon RHEV-QE storage *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *users@ovirt.org *Sent: *Tuesday, 10 February, 2015 12:00:10 PM *Subject: *[ovirt-users] Can't remove snapshot due to low disk space onstorage domain? Hi, I'm running the ovirt engine 3.4 series. I've created a snapshot of a VM with an OS and data disk before upgrading the machine. The upgrade went fine and I now want to remove the snapshot. Unfortunately this fails with the error: Cannot remove Snapshot. Low disk space on target Storage Domain stadius-virt2_PERC. So I can't free disk space by removing the snapshot because I don't have enough space? When I look at the VM the disks are shown as preallocated (which is what I selected during installation). When I look at the storage tab and list the disks in my storage domain, the disks are now shown as thin provisioned with the actual size virtual size. How can I remove this snapshot? I don't have enough free disk space in my storage domain to duplicate the data disk of my VM. Regards, Rik -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee +32(0)16/32.11.07 Any errors in spelling, tact or fact are transmission errors ___ 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 -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee +32(0)16/32.11.07 Any errors in spelling, tact or fact are transmission errors ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain?
I'm not sure I understand which RHEV version you're using now. If you're using RHEV 3.5, it is possible to remove a snapshot of a single disk. You can do it via webadmin, Under the 'Disks Snapshots' subtab of the relevant storage domain, in the 'Storage' main tab. As for your second question, the free space has to be in the same storage domain. - Original Message - From: Rik Theys rik.th...@esat.kuleuven.be To: Elad Ben Aharon ebena...@redhat.com Cc: users@ovirt.org Sent: Wednesday, 11 February, 2015 2:10:13 PM Subject: Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Hi, Thats unfortunate :-(. It would have been great if oVirt told me during the creation of the snapshot that I would be unable to remove it later due to unsufficient free space in the storage domain :-). The VM has two disks - a small and a large one - so the snapshot contains both. Can I still remove the large disk while it has snapshots? Luckily the used disk space in the (preallocated) large disk is low enough so I can fit it on another temporary disk then. Does the free space have to be in the same storage domain, or can oVirt use another storage domain for the temporary volume? IOW, can I add an NFS storage domain which oVirt can use to create the temporary disk on? Regards, Rik On 02/11/2015 12:57 PM, Elad Ben Aharon wrote: *equals or larger than the disk size *From: *Elad Ben Aharon ebena...@redhat.com *To: *Rik Theys rik.th...@esat.kuleuven.be *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 12:18:35 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Snapshot removal (merge) includes a create volume phase. This volume is temporary and gets removed once the snapshot merge is completed. Its size is the size of the disk. That means that in order to remove the snapshot, the storage domain should have available size that is equal to the disk size. Elad Ben Aharon RHEV-QE storage *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *users@ovirt.org *Sent: *Tuesday, 10 February, 2015 12:00:10 PM *Subject: *[ovirt-users] Can't remove snapshot due to low disk space on storage domain? Hi, I'm running the ovirt engine 3.4 series. I've created a snapshot of a VM with an OS and data disk before upgrading the machine. The upgrade went fine and I now want to remove the snapshot. Unfortunately this fails with the error: Cannot remove Snapshot. Low disk space on target Storage Domain stadius-virt2_PERC. So I can't free disk space by removing the snapshot because I don't have enough space? When I look at the VM the disks are shown as preallocated (which is what I selected during installation). When I look at the storage tab and list the disks in my storage domain, the disks are now shown as thin provisioned with the actual size virtual size. How can I remove this snapshot? I don't have enough free disk space in my storage domain to duplicate the data disk of my VM. Regards, Rik -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee +32(0)16/32.11.07 Any errors in spelling, tact or fact are transmission errors ___ 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 -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee +32(0)16/32.11.07 Any errors in spelling, tact or fact are transmission errors ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain?
Hi, I created the snapshot on the Snapshots subtab of the Virtual machines tab. I did this when my engine (and host) was running oVirt 3.4. It is/was a snapshot of the entire VM (I deselected the memory state). I since upgraded the engine to 3.5. When I look at the snapshots subtab of the virtual machine, I see the Current snapshot which is Active VM and the snapshot I created before. This snapshot is a snapshot of both the OS and data disk. I can not delete the second snapshot when the VM is running. If I power down the VM, I can't remove the snapshot as it brings up the error I mentioned before. However, when I look at the disk snapshots subtab of the storage tab (like you suggested), I see both disks with a snapshot and I can select Remove there while the VM is running. Is it safe to remove them this way? This will only remove the snapshot and not the disk (and data) from my (running) VM? Regards, Rik On 02/11/2015 01:26 PM, Elad Ben Aharon wrote: I'm not sure I understand which RHEV version you're using now. If you're using RHEV 3.5, it is possible to remove a snapshot of a single disk. You can do it via webadmin, Under the 'Disks Snapshots' subtab of the relevant storage domain, in the 'Storage' main tab. As for your second question, the free space has to be in the same storage domain. *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *Elad Ben Aharon ebena...@redhat.com *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 2:10:13 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk spaceon storage domain? Hi, Thats unfortunate :-(. It would have been great if oVirt told me during the creation of the snapshot that I would be unable to remove it later due to unsufficient free space in the storage domain :-). The VM has two disks - a small and a large one - so the snapshot contains both. Can I still remove the large disk while it has snapshots? Luckily the used disk space in the (preallocated) large disk is low enough so I can fit it on another temporary disk then. Does the free space have to be in the same storage domain, or can oVirt use another storage domain for the temporary volume? IOW, can I add an NFS storage domain which oVirt can use to create the temporary disk on? Regards, Rik On 02/11/2015 12:57 PM, Elad Ben Aharon wrote: *equals or larger than the disk size *From: *Elad Ben Aharon ebena...@redhat.com *To: *Rik Theys rik.th...@esat.kuleuven.be *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 12:18:35 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk spaceonstorage domain? Snapshot removal (merge) includes a create volume phase. This volume is temporary and gets removed once the snapshot merge is completed. Its size is the size of the disk. That means that in order to remove the snapshot, the storage domain should have available size that is equal to the disk size. Elad Ben Aharon RHEV-QE storage *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *users@ovirt.org *Sent: *Tuesday, 10 February, 2015 12:00:10 PM *Subject: *[ovirt-users] Can't remove snapshot due to low disk space onstorage domain? Hi, I'm running the ovirt engine 3.4 series. I've created a snapshot of a VM with an OS and data disk before upgrading the machine. The upgrade went fine and I now want to remove the snapshot. Unfortunately this fails with the error: Cannot remove Snapshot. Low disk space on target Storage Domain stadius-virt2_PERC. So I can't free disk space by removing the snapshot because I don't have enough space? When I look at the VM the disks are shown as preallocated (which is what I selected during installation). When I look at the storage tab and list the disks in my storage domain, the disks are now shown as thin provisioned with the actual size virtual size. How can I remove this snapshot? I don't have enough free disk space in my storage domain to duplicate the data disk of my VM. Regards, Rik -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee +32(0)16/32.11.07 Any errors in spelling, tact or fact are transmission errors ___ 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 -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus
Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain?
Indeed, removing the disk snapshot from the 'Disk Snapshots' subtab will remove only the snapshot of the disk, not the disk itself. Regarding snapshot removal while the VM is running - this feature is pretty new (live snapshot merge). AFAIK, this feature is tech preview for 3.5. It also depends on the OS you're using on the hosts. RHEL 7.1 supports it, but again, as tech preview. Therefore, the safest way to remove the snapshot of the disk would be to do it while the VM is not running. - Original Message - From: Rik Theys rik.th...@esat.kuleuven.be To: Elad Ben Aharon ebena...@redhat.com Cc: users@ovirt.org Sent: Wednesday, 11 February, 2015 2:44:55 PM Subject: Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Hi, I created the snapshot on the Snapshots subtab of the Virtual machines tab. I did this when my engine (and host) was running oVirt 3.4. It is/was a snapshot of the entire VM (I deselected the memory state). I since upgraded the engine to 3.5. When I look at the snapshots subtab of the virtual machine, I see the Current snapshot which is Active VM and the snapshot I created before. This snapshot is a snapshot of both the OS and data disk. I can not delete the second snapshot when the VM is running. If I power down the VM, I can't remove the snapshot as it brings up the error I mentioned before. However, when I look at the disk snapshots subtab of the storage tab (like you suggested), I see both disks with a snapshot and I can select Remove there while the VM is running. Is it safe to remove them this way? This will only remove the snapshot and not the disk (and data) from my (running) VM? Regards, Rik On 02/11/2015 01:26 PM, Elad Ben Aharon wrote: I'm not sure I understand which RHEV version you're using now. If you're using RHEV 3.5, it is possible to remove a snapshot of a single disk. You can do it via webadmin, Under the 'Disks Snapshots' subtab of the relevant storage domain, in the 'Storage' main tab. As for your second question, the free space has to be in the same storage domain. *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *Elad Ben Aharon ebena...@redhat.com *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 2:10:13 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Hi, Thats unfortunate :-(. It would have been great if oVirt told me during the creation of the snapshot that I would be unable to remove it later due to unsufficient free space in the storage domain :-). The VM has two disks - a small and a large one - so the snapshot contains both. Can I still remove the large disk while it has snapshots? Luckily the used disk space in the (preallocated) large disk is low enough so I can fit it on another temporary disk then. Does the free space have to be in the same storage domain, or can oVirt use another storage domain for the temporary volume? IOW, can I add an NFS storage domain which oVirt can use to create the temporary disk on? Regards, Rik On 02/11/2015 12:57 PM, Elad Ben Aharon wrote: *equals or larger than the disk size *From: *Elad Ben Aharon ebena...@redhat.com *To: *Rik Theys rik.th...@esat.kuleuven.be *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 12:18:35 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Snapshot removal (merge) includes a create volume phase. This volume is temporary and gets removed once the snapshot merge is completed. Its size is the size of the disk. That means that in order to remove the snapshot, the storage domain should have available size that is equal to the disk size. Elad Ben Aharon RHEV-QE storage *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *users@ovirt.org *Sent: *Tuesday, 10 February, 2015 12:00:10 PM *Subject: *[ovirt-users] Can't remove snapshot due to low disk space on storage domain? Hi, I'm running the ovirt engine 3.4 series. I've created a snapshot of a VM with an OS and data disk before upgrading the machine. The upgrade went fine and I now want to remove the snapshot. Unfortunately this fails with the error: Cannot remove Snapshot. Low disk space on target Storage Domain stadius-virt2_PERC. So I can't free disk space by removing the snapshot because I don't have enough space? When I look at the VM the disks are shown as preallocated (which is what I selected during installation). When I look at the storage tab and list the disks in my storage domain, the disks are now shown as thin
Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain?
Hi, OK since my hosts are still CentOS 6.6, I will schedule downtime. Will removing it this way also require the additional disk space in the storage domain? Rik On 02/11/2015 02:03 PM, Elad Ben Aharon wrote: Indeed, removing the disk snapshot from the 'Disk Snapshots' subtab will remove only the snapshot of the disk, not the disk itself. Regarding snapshot removal while the VM is running - this feature is pretty new (live snapshot merge). AFAIK, this feature is tech preview for 3.5. It also depends on the OS you're using on the hosts. RHEL 7.1 supports it, but again, as tech preview. Therefore, the safest way to remove the snapshot of the disk would be to do it while the VM is not running. *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *Elad Ben Aharon ebena...@redhat.com *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 2:44:55 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk spaceon storage domain? Hi, I created the snapshot on the Snapshots subtab of the Virtual machines tab. I did this when my engine (and host) was running oVirt 3.4. It is/was a snapshot of the entire VM (I deselected the memory state). I since upgraded the engine to 3.5. When I look at the snapshots subtab of the virtual machine, I see the Current snapshot which is Active VM and the snapshot I created before. This snapshot is a snapshot of both the OS and data disk. I can not delete the second snapshot when the VM is running. If I power down the VM, I can't remove the snapshot as it brings up the error I mentioned before. However, when I look at the disk snapshots subtab of the storage tab (like you suggested), I see both disks with a snapshot and I can select Remove there while the VM is running. Is it safe to remove them this way? This will only remove the snapshot and not the disk (and data) from my (running) VM? Regards, Rik On 02/11/2015 01:26 PM, Elad Ben Aharon wrote: I'm not sure I understand which RHEV version you're using now. If you're using RHEV 3.5, it is possible to remove a snapshot of a single disk. You can do it via webadmin, Under the 'Disks Snapshots' subtab of the relevant storage domain, in the 'Storage' main tab. As for your second question, the free space has to be in the same storage domain. *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *Elad Ben Aharon ebena...@redhat.com *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 2:10:13 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk spaceon storage domain? Hi, Thats unfortunate :-(. It would have been great if oVirt told me during the creation of the snapshot that I would be unable to remove it later due to unsufficient free space in the storage domain :-). The VM has two disks - a small and a large one - so the snapshot contains both. Can I still remove the large disk while it has snapshots? Luckily the used disk space in the (preallocated) large disk is low enough so I can fit it on another temporary disk then. Does the free space have to be in the same storage domain, or can oVirt use another storage domain for the temporary volume? IOW, can I add an NFS storage domain which oVirt can use to create the temporary disk on? Regards, Rik On 02/11/2015 12:57 PM, Elad Ben Aharon wrote: *equals or larger than the disk size *From: *Elad Ben Aharon ebena...@redhat.com *To: *Rik Theys rik.th...@esat.kuleuven.be *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 12:18:35 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk spaceonstorage domain? Snapshot removal (merge) includes a create volume phase. This volume is temporary and gets removed once the snapshot merge is completed. Its size is the size of the disk. That means that in order to remove the snapshot, the storage domain should have available size that is equal to the disk size. Elad Ben Aharon RHEV-QE storage *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *users@ovirt.org *Sent: *Tuesday, 10 February, 2015 12:00:10 PM *Subject: *[ovirt-users] Can't remove snapshot due to low disk space onstorage domain? Hi, I'm running the ovirt engine 3.4 series. I've created a snapshot of a VM with an OS and data disk before upgrading the machine. The upgrade went fine and I now want to remove the snapshot. Unfortunately this fails with the error: Cannot remove Snapshot. Low disk space on target Storage Domain stadius-virt2_PERC
Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain?
It will require an available size according to the disk snapshot you're attempting to remove. - Original Message - From: Rik Theys rik.th...@esat.kuleuven.be To: Elad Ben Aharon ebena...@redhat.com Cc: users@ovirt.org Sent: Wednesday, 11 February, 2015 3:06:35 PM Subject: Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Hi, OK since my hosts are still CentOS 6.6, I will schedule downtime. Will removing it this way also require the additional disk space in the storage domain? Rik On 02/11/2015 02:03 PM, Elad Ben Aharon wrote: Indeed, removing the disk snapshot from the 'Disk Snapshots' subtab will remove only the snapshot of the disk, not the disk itself. Regarding snapshot removal while the VM is running - this feature is pretty new (live snapshot merge). AFAIK, this feature is tech preview for 3.5. It also depends on the OS you're using on the hosts. RHEL 7.1 supports it, but again, as tech preview. Therefore, the safest way to remove the snapshot of the disk would be to do it while the VM is not running. *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *Elad Ben Aharon ebena...@redhat.com *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 2:44:55 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Hi, I created the snapshot on the Snapshots subtab of the Virtual machines tab. I did this when my engine (and host) was running oVirt 3.4. It is/was a snapshot of the entire VM (I deselected the memory state). I since upgraded the engine to 3.5. When I look at the snapshots subtab of the virtual machine, I see the Current snapshot which is Active VM and the snapshot I created before. This snapshot is a snapshot of both the OS and data disk. I can not delete the second snapshot when the VM is running. If I power down the VM, I can't remove the snapshot as it brings up the error I mentioned before. However, when I look at the disk snapshots subtab of the storage tab (like you suggested), I see both disks with a snapshot and I can select Remove there while the VM is running. Is it safe to remove them this way? This will only remove the snapshot and not the disk (and data) from my (running) VM? Regards, Rik On 02/11/2015 01:26 PM, Elad Ben Aharon wrote: I'm not sure I understand which RHEV version you're using now. If you're using RHEV 3.5, it is possible to remove a snapshot of a single disk. You can do it via webadmin, Under the 'Disks Snapshots' subtab of the relevant storage domain, in the 'Storage' main tab. As for your second question, the free space has to be in the same storage domain. *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *Elad Ben Aharon ebena...@redhat.com *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 2:10:13 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Hi, Thats unfortunate :-(. It would have been great if oVirt told me during the creation of the snapshot that I would be unable to remove it later due to unsufficient free space in the storage domain :-). The VM has two disks - a small and a large one - so the snapshot contains both. Can I still remove the large disk while it has snapshots? Luckily the used disk space in the (preallocated) large disk is low enough so I can fit it on another temporary disk then. Does the free space have to be in the same storage domain, or can oVirt use another storage domain for the temporary volume? IOW, can I add an NFS storage domain which oVirt can use to create the temporary disk on? Regards, Rik On 02/11/2015 12:57 PM, Elad Ben Aharon wrote: *equals or larger than the disk size *From: *Elad Ben Aharon ebena...@redhat.com *To: *Rik Theys rik.th...@esat.kuleuven.be *Cc: *users@ovirt.org *Sent: *Wednesday, 11 February, 2015 12:18:35 PM *Subject: *Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain? Snapshot removal (merge) includes a create volume phase. This volume is temporary and gets removed once the snapshot merge is completed. Its size is the size of the disk. That means that in order to remove the snapshot, the storage domain should have available size that is equal to the disk size. Elad Ben Aharon RHEV-QE storage *From: *Rik Theys rik.th...@esat.kuleuven.be *To: *users@ovirt.org *Sent: *Tuesday, 10 February, 2015 12:00:10 PM
Re: [ovirt-users] Can't remove snapshot due to low disk space on storage domain?
Dňa 11.02.2015 o 14:18 Elad Ben Aharon napísal(a): It will require an available size according to the disk snapshot you're attempting to remove. Be warned: the downtime will be as long as it will take your storage to copy the full size of the disk for each snaphot. Our server with a few snaps on 1TB disk took more than a day of downtime! -- Ernest Beinrohr, AXON PRO Ing http://www.beinrohr.sk/ing.php, RHCE http://www.beinrohr.sk/rhce.php, RHCVA http://www.beinrohr.sk/rhce.php, LPIC http://www.beinrohr.sk/lpic.php, VCA http://www.beinrohr.sk/vca.php, +421-2-62410360 +421-903-482603 ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
