It's amazing what replacing the failed drive for the ZIL does for the write throughput. I peaked at 6 Gbit/second.
Next bottleneck. *David Johnson* *Director of Development, Maxis Technology* 844.696.2947 ext 702 (o) | 479.531.3590 (c) <https://www.linkedin.com/in/pojoguy/> <https://maxistechnology.com/wp-content/uploads/vcards/vcard-David_Johnson.vcf> <https://maxistechnology.com/> *Follow us:* <https://www.linkedin.com/company/maxis-tech-inc/> On Fri, Apr 30, 2021 at 12:20 PM Vinícius Ferrão <fer...@versatushpc.com.br> wrote: > As far as I know FreeNAS supports VMware-like snapshots but not the > language that oVirt speaks. > > Another point to observe is that FreeNAS with RAID-Z3 is not recommended > from VM storage, because it is just slow for this purpose. Usually NFS > issues sync requests which will be slow due to it's nature. iSCSI tends to > be faster since it can request sync and async operations. > > If you pool does not have a ZIL for Sync Write Offload you'll get this > kind of performance. > > I have three oVirt installs backed by FreeNAS and all of them have 24 > spindles in stripe of mirrors configuration, due to those issues. > > Regards, > > > On 30 Apr 2021, at 14:05, Strahil Nikolov via Users <users@ovirt.org> > wrote: > > I have the feeling that it's using the wrong Network. > > Also, check if TrueNAS supports NFS Server-Side Copy. > In order to use that feature mount the share via v4.2 . > > > Best Regards, > Strahil Nikolov > > On Fri, Apr 30, 2021 at 19:10, David Johnson > <djohn...@maxistechnology.com> wrote: > Hi everyone, > > When cloning a VM, I discovered that the time to close appears excessive > based on the underlying platform I am using. It appears that the clone > operation is not making efficient use of the network. I have seen up to 4 > GBits sustained throughput by applications on VM's on the cluster. > > Is there a configuration I might be missing? > > *System specifics:* > Backing store: NFS on TrueNAS running zRaid 3 on 11 spinning disks > > Ovirt Controller: I7 desktop > General network: 1 GBit Ethernet > > Ovirt Host: Intel(R) Xeon(R) Silver 4216 CPU @ 2.10GHz, 2x32 cores, 256 > GB RAM > Data Network: 10 GBit 10GBase-Twinax, dedicated to this Host and the > TrueNAS > > > *Operation:* > Copying the 60GB partition, the copy operation never exceeds 40 megabytes > per second (less than 0.5 GBit), even though the dedicated 10 Gigabit data > network is not otherwise busy. > > <image.png> > > *David Johnson* > *Director of Development, Maxis Technology* > 844.696.2947 ext 702 (o) | 479.531.3590 (c) > <https://www.linkedin.com/in/pojoguy/> > <https://maxistechnology.com/wp-content/uploads/vcards/vcard-David_Johnson.vcf> > <https://maxistechnology.com/> > > *Follow us:* <https://www.linkedin.com/company/maxis-tech-inc/> > _______________________________________________ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/WTEWHJ6NMFGGKQHQNGGI3C5TPC2OETGU/ > > <image.png>_______________________________________________ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/WGJLJUBHAUXA23NHVRXYHY2NL6IYWWVL/ > > >
_______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/7GIHDPHEOJ2THEOG6DZHJA2GYMN4G3CV/
