Hello, I used Ovirt with Ganesha and PNFS (on Gluster not managed by OVirt).
I'm now using a Storage based in Linux on ZFS and kernel NFS using NFS Version 4.2. Thinprovisioning and trim on VM Disk's works fine so that VM Disk (Sparse Files on NFS) shrink when trimming inside VM. You have to check "Enable Discard" on VM Disks. Disks are created in a few seconds as stated. Bye Am 13.07.2019 um 14:52 schrieb Nir Soffer: > > > On Sat, Jul 13, 2019, 00:30 Erick Perez <[email protected] > <mailto:[email protected]>> wrote: > > I have read the archives and the most recent discussion was 5 > years ago. So I better ask again. > My NAS runs Centos with NFS4.2 (and I am testing Ganesha in > another server) > Does Ovirt 4.3.4 have support for NFS 4/4.1/4.2 or pNFS > > > We support NFS 4.2 for a while (4.2 or 4.3), but the default is still > auto (typically NFS 3). > > Specially version 4.2 due to: > Server-Side Copy: NFSv4.2 supports copy_file_range() system call, > which allows the NFS client to efficiently copy data without > wasting network resources. > > > qemu support copy_file_range since RHEL 7.6, but I think it has some > issues and does not perform well, and we don't enable this mode yet. > > What work with NFS 4.2 is sparseness and fallocate support, speeding > copy/move/clone/upload of spares disks. > > For example creating 100g preallocated image would take less than a > second. > > > But this will only happen if the Ovirt (which I know is Centos > based) supports NFS 4.2. > Not sure If I update the NFS toolset on the Ovirt install, it will > break something or worst. > > > It should work and much better. > > Nir > > _______________________________________________ > 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/Q4YOSOY4ZF2D6YTIORIPMUD6YJNACVB3/ > > > _______________________________________________ > 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/YOBLWT6H4THVXOY2PXSDYGWXU6UYJWIM/ -- *Ralf Schenk* fon +49 (0) 24 05 / 40 83 70 fax +49 (0) 24 05 / 40 83 759 mail *[email protected]* <mailto:[email protected]> *Databay AG* Jens-Otto-Krag-Straße 11 D-52146 Würselen *www.databay.de* <http://www.databay.de> Sitz/Amtsgericht Aachen • HRB:8437 • USt-IdNr.: DE 210844202 Vorstand: Ralf Schenk, Dipl.-Ing. Jens Conze, Aresch Yavari, Dipl.-Kfm. Philipp Hermanns Aufsichtsratsvorsitzender: Wilhelm Dohmen ------------------------------------------------------------------------
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