<div dir="ltr">Hello Arman,<div><br></div><div> 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.</div><div>I have no experience with Gluster + ZFS so I can not comment on this. </div><div>my volumes are running in replica 3, we had huge performance impact with 2+1 because our arbiter was running in HDD.</div><div>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.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Mar 26, 2021 at 6:22 PM Arman Khalatyan <<a href="mailto:arm2arm@gmail.com">arm2arm@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">hello everyone,<div dir="auto">can someone please share his experience with all flash GlusterFS setups?</div><div dir="auto">I am planning to use it in 2+1 with ovirt for the critical VMs.</div><div dir="auto">plan is to have zfs with ssds in raid6 + pcie NVMe for the special dev.</div><div dir="auto"><br></div><div dir="auto">what kind of tuning should we put in GlusterFS side? any ssd profiles exists? </div><div dir="auto"><br></div><div dir="auto">thanks </div><div dir="auto">Arman.</div><div dir="auto"><br></div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr">Respectfully<div>Mahdi</div></div></div>