------=_Part_9439260_748005546.1423657577874 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit 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.Theys@esat.kuleuven.be> To: "Elad Ben Aharon" <ebenahar@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" <ebenahar@redhat.com> *To: *"Rik Theys" <Rik.Theys@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.Theys@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>> ------=_Part_9439260_748005546.1423657577874 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><body><div style=3D"font-family: times new roman, new york, times, se= rif; font-size: 12pt; color: #000000"><div>I'm not sure I understand which = RHEV version you're using now.<br></div><div>If you're using RHEV 3.5, it i= s possible to remove a snapshot of a single disk. </div><div>You can do it = via webadmin, Under the 'Disks Snapshots' subtab of the relevant storage do= main, in the 'Storage' main tab.<br></div><div><br></div><div>As for your s= econd question, the free space has to be in the same storage domain.<br></d= iv><hr id=3D"zwchr"><div style=3D"color:#000;font-weight:normal;font-style:= normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-siz= e:12pt;"><b>From: </b>"Rik Theys" <Rik.Theys@esat.kuleuven.be><br><b>= To: </b>"Elad Ben Aharon" <ebenahar@redhat.com><br><b>Cc: </b>users@o= virt.org<br><b>Sent: </b>Wednesday, 11 February, 2015 2:10:13 PM<br><b>Subj= ect: </b>Re: [ovirt-users] Can't remove snapshot due to low disk space = ; on storage domain?<br><div><br><= /div>Hi,<br><div><br></div>Thats unfortunate :-(. It would have been great = if oVirt told me during <br>the creation of the snapshot that I would be un= able to remove it later <br>due to unsufficient free space in the storage d= omain :-).<br><div><br></div>The VM has two disks - a small and a large one= - so the snapshot <br>contains both. Can I still remove the large disk whi= le it has snapshots?<br><div><br></div>Luckily the used disk space in the (= preallocated) large disk is low <br>enough so I can fit it on another tempo= rary disk then.<br><div><br></div>Does the free space have to be in the sam= e storage domain, or can oVirt <br>use another storage domain for the tempo= rary volume? IOW, can I add an <br>NFS storage domain which oVirt can use t= o create the temporary disk on?<br><div><br></div>Regards,<br><div><br></di= v>Rik<br><div><br></div><br>On 02/11/2015 12:57 PM, Elad Ben Aharon wrote:<= br>> *equals or larger than the disk size<br>><br>> --------------= ----------------------------------------------------------<br>> *From: *= "Elad Ben Aharon" <ebenahar@redhat.com><br>> *To: *"Rik Theys" <= ;Rik.Theys@esat.kuleuven.be><br>> *Cc: *users@ovirt.org<br>> *Sent= : *Wednesday, 11 February, 2015 12:18:35 PM<br>> *Subject: *Re: [ovirt-u= sers] Can't remove snapshot due to low disk<br>> space &nb= sp; on storage domain?<br>><br>> Sna= pshot removal (merge) includes a create volume phase. This volume is<br>>= ; temporary and gets removed once the snapshot merge is completed. Its<br>&= gt; size is the size of the disk.<br>> That means that in order to remov= e the snapshot, the storage domain<br>> should have available size that = is equal to the disk size.<br>><br>><br>><br>><br>><br>><= br>><br>><br>><br>> Elad Ben Aharon<br>> RHEV-QE storage<br>= ><br>><br>> ------------------------------------------------------= ------------------<br>> *From: *"Rik Theys" <Rik.Theys@esat.kuleuven.= be><br>> *To: *users@ovirt.org<br>> *Sent: *Tuesday, 10 February, = 2015 12:00:10 PM<br>> *Subject: *[ovirt-users] Can't remove snapshot due= to low disk space<br>> on storage domain?<br=
><br>> Hi,<br>><br>> I'm running the ovirt engine 3.4 series. = I've created a snapshot of a VM<br>> with an OS and data disk before upg= rading the machine.<br>><br>> The upgrade went fine and I now want to= remove the snapshot.<br>> Unfortunately this fails with the error:<br>&= gt;<br>> "Cannot remove Snapshot. Low disk space on target Storage Domai= n<br>> stadius-virt2_PERC."<br>><br>> So I can't free disk space b= y removing the snapshot because I don't have<br>> enough space?<br>><= br>> When I look at the VM the disks are shown as preallocated (which is= what<br>> I selected during installation). When I look at the storage t= ab and list<br>> the disks in my storage domain, the disks are now shown= as thin<br>> provisioned with the actual size > virtual size.<br>>= ;<br>> How can I remove this snapshot? I don't have enough free disk spa= ce in<br>> my storage domain to duplicate the data disk of my VM.<br>>= ;<br>> Regards,<br>><br>> Rik<br>><br>><br>> --<br>> R= ik Theys<br>> System Engineer<br>> KU Leuven - Dept. Elektrotechniek = (ESAT)<br>> Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Hever= lee<br>> +32(0)16/32.11.07<br>> -------------------------------------= ---------------------------<br>> <<Any errors in spelling, tact or= fact are transmission errors>><br>> _____________________________= __________________<br>> Users mailing list<br>> Users@ovirt.org<br>&g= t; http://lists.ovirt.org/mailman/listinfo/users<br>><br>><br>>; __= _____________________________________________<br>> Users mailing list<br= > Users@ovirt.org<br>> http://lists.ovirt.org/mailman/listinfo/users= <br>><br><div><br></div><br>-- <br>Rik Theys<br>System Engineer<br>KU Le= uven - Dept. Elektrotechniek (ESAT)<br>Kasteelpark Arenberg 10 bus 2440 &nb= sp;- B-3001 Leuven-Heverlee<br>+32(0)16/32.11.07<br>-----------------------= -----------------------------------------<br><<Any errors in spelling= , tact or fact are transmission errors>><br></div><div><br></div></di= v></body></html> ------=_Part_9439260_748005546.1423657577874--