On 2019-04-17 13:31, Wesley Stewart wrote: > 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 <[email protected] > <mailto:[email protected]>> 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 > <[email protected] <mailto:[email protected]>> 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. > ZFS is definitely pretty awful at keeping your data _unsafe_ : )
Add a piece of the SSD's as mirrored SLOG and be both safe as fast. My two cents. /K > 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 -- [email protected] <mailto:[email protected]> > To unsubscribe send an email to [email protected] > <mailto:[email protected]> > 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/[email protected]/message/SZDBAGS6Y66SJATBCVDNSLWYTOYIXHJR/ > > > > -- > Regards, > Eyal Shenitzky > > On Mon, Apr 15, 2019 at 8:35 PM Wesley Stewart > <[email protected] <mailto:[email protected]>> 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 -- [email protected] <mailto:[email protected]> > To unsubscribe send an email to [email protected] > <mailto:[email protected]> > 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/[email protected]/message/SZDBAGS6Y66SJATBCVDNSLWYTOYIXHJR/ > > > > -- > Regards, > Eyal Shenitzky > > > _______________________________________________ > Users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > 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/[email protected]/message/NQCOAS5NJKZ3XRIHGKDD75BVMTI5RCNG/
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Description: application/pgp-keys
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