Thank you Adnan!! You gave us right hints. are you letting ovirt to manage GlusterFS? or its an external storage? we are in trouble with 2+1 hdd based volumes,itself the boxes are fast and reliable as zfs+nfs store. with gluster as far we have normal load everything is working well, but once one of the bricks after reboot started healing process a lot of vms got i/o failure and timeouts. we never got this with the single zfs+nfs box.
now we are planning 3 boxes in each box 2 HHHL NVME 3.8TB samsungs(special dev) +8x1.9TB storage as a zfsbox, so they will be glued as 2+1 glusterfs. Mahdi Adnan <[email protected]> schrieb am Fr., 26. März 2021, 22:08: > Hello Arman, > > We have several volumes running all flash bricks hosting VMs for > RHV/oVirt. as far as I know, there's no profile specifically for SSD, we > just use the usual virt group for the volume which has the essential > options for the volume to be used for VMs. > I have no experience with Gluster + ZFS so I can not comment on this. > my volumes are running in replica 3, we had huge performance impact with > 2+1 because our arbiter was running in HDD. > One of the volumes we have is generating around 16k of WR IOps and even > during upgrade process which involves healing of 100k files when nodes > reboot, we see no performance issues at all. > > On Fri, Mar 26, 2021 at 6:22 PM Arman Khalatyan <[email protected]> wrote: > >> hello everyone, >> can someone please share his experience with all flash GlusterFS setups? >> I am planning to use it in 2+1 with ovirt for the critical VMs. >> plan is to have zfs with ssds in raid6 + pcie NVMe for the special dev. >> >> what kind of tuning should we put in GlusterFS side? any ssd profiles >> exists? >> >> thanks >> Arman. >> >> ________ >> >> >> >> Community Meeting Calendar: >> >> Schedule - >> Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC >> Bridge: https://meet.google.com/cpu-eiue-hvk >> Gluster-users mailing list >> [email protected] >> https://lists.gluster.org/mailman/listinfo/gluster-users >> > > > -- > Respectfully > Mahdi >
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