[ovirt-users] Re: RAID L1/L5/L10 + NFS Loopback Benchmarks

Hi ! Deadlock of NFS loopback happens with 3.10 stock kernel from CentOS 7.6 only or also with 4.x mainline ? I use 4.x mainline on my nodes.

On 19 Nov 2018, at 12:59, Simone Tiraboschi <stirabos(a)redhat.com&gt; wrote: On Sun, Nov 18, 2018 at 12:58 PM Andrei Verovski <andreil1(a)starlett.lv&gt; wrote: > Hi ! > > I run a series of benchmarks with IOZONE testing performance of > different RAID configurations on HP ProLiant DL380 + impact of NFS > loopback. > > NFS loopback is necessary even for very small systems (e.g. just 2 > AFAIK NFS loopback is still considered a bad practice and it's still strongly recommended against since it could lead to deadlock and data loss. See https://access.redhat.com/solutions/22231 I'd strongly recommend a single node hyper-converged gluster over that. > nodes), since oVirt local storage setup is limited to single (only one) > node per data center and this is quite useless from the point of view of > functionality. > > Full article: > http://www.vacuum-tube.eu/wp/?p=537 > > Short YouTube slide show: > https://www.youtube.com/watch?v=Xw_VN9G8jSI > > Related video: > Moving away from local storage setup to NFS/GlusterFS > https://www.youtube.com/watch?v=2ebhZ5U6x_Y > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)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/OCXJAMVDUVL... >