Appreciate the response! But there is plenty of space available. About 250 free GBs. My test VM is about 40gb.
On Tue, Apr 16, 2019, 1:12 AM Eyal Shenitzky <eshen...@redhat.com> wrote: > Hi Wesley, > > Currently, there is no direct way to change disks allocation policy > (thin-provision <-> preallocation). > > In your case, it sounds like your ISCSI storage is running out of space, > changing disk from thin-provisioned to preallocation will consume *more* space > on the storage, thin-provision is more space effective but impact the > performance. > > On Mon, Apr 15, 2019 at 8:35 PM Wesley Stewart <wstewa...@gmail.com> > wrote: > >> I am currently running a ZFS server (Running RaidZ2) and I have been >> experimenting with NFS and shares to host my guests. I am currently >> running oVirt 4.2.8 and using a RaidZ2 NFS mount for the guests. >> >> ZFS definitely is definitely pretty awful (At least in my experience so >> far) for hosting VMs. I believe this is due to the synchronous writes >> being performed. However, I think running an iSCSI target with >> Synchronization disabled over a 10Gb connection might do the trick. (I have >> a couple of mirroed SSD drives for performance if I need it, but the RaidZ2 >> crawls for disk speed). >> >> When I tried to migrate a thin provisioned guest to iSCSI, I keep getting >> an "Out of disk space error" which I am pretty sure is due to the block >> style storage on the iSCSI target. Is there a way to switch from Thin to >> Preallocated? Or is my best bet to try and take a snapshot and clone this >> into a pre-allocated disk? >> _______________________________________________ >> Users mailing list -- users@ovirt.org >> To unsubscribe send an email to users-le...@ovirt.org >> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >> oVirt Code of Conduct: >> https://www.ovirt.org/community/about/community-guidelines/ >> List Archives: >> https://lists.ovirt.org/archives/list/users@ovirt.org/message/SZDBAGS6Y66SJATBCVDNSLWYTOYIXHJR/ >> > > > -- > Regards, > Eyal Shenitzky > > On Mon, Apr 15, 2019 at 8:35 PM Wesley Stewart <wstewa...@gmail.com> > wrote: > >> I am currently running a ZFS server (Running RaidZ2) and I have been >> experimenting with NFS and shares to host my guests. I am currently >> running oVirt 4.2.8 and using a RaidZ2 NFS mount for the guests. >> >> ZFS definitely is definitely pretty awful (At least in my experience so >> far) for hosting VMs. I believe this is due to the synchronous writes >> being performed. However, I think running an iSCSI target with >> Synchronization disabled over a 10Gb connection might do the trick. (I have >> a couple of mirroed SSD drives for performance if I need it, but the RaidZ2 >> crawls for disk speed). >> >> When I tried to migrate a thin provisioned guest to iSCSI, I keep getting >> an "Out of disk space error" which I am pretty sure is due to the block >> style storage on the iSCSI target. Is there a way to switch from Thin to >> Preallocated? Or is my best bet to try and take a snapshot and clone this >> into a pre-allocated disk? >> _______________________________________________ >> Users mailing list -- users@ovirt.org >> To unsubscribe send an email to users-le...@ovirt.org >> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >> oVirt Code of Conduct: >> https://www.ovirt.org/community/about/community-guidelines/ >> List Archives: >> https://lists.ovirt.org/archives/list/users@ovirt.org/message/SZDBAGS6Y66SJATBCVDNSLWYTOYIXHJR/ >> > > > -- > Regards, > Eyal Shenitzky >
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