<div dir="ltr"><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 21, 2018 at 9:13 PM, Jeff Applewhite <span dir="ltr"><<a href="mailto:japplewh@redhat.com" target="_blank">japplewh@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi All<br>
<br>
When you have a setup with 2 way replication + Arbiter backed by two<br>
large RAID 6 volumes what happens when there is a disk failure and<br>
rebuild in progress in one of those RAID sets from a client<br>
perspective?<br>
<br>
Does the FUSE client know how to prioritize the quicker disk (the RAID<br>
set that is not in rebuild)? If not could it be made smart in this<br>
way? I ask because with large disks, rebuild priority could be set to<br>
very fast on the controller card if Gluster can auto detect or in some<br>
way work around the relatively slow performance from one of two<br>
backends. The likelihood of having rebuilds in progress on two<br>
different raid sets on two different servers is very low.<br>
<br>
Another way to state this is "is there some advantage we can gain from<br>
having double replication (RAID 6 + Gluster file replication)?"<br>
<br>
Thanks,<br>
<br>
<br>
Jeff Applewhite<br></blockquote><div><br></div><div>I opened an issue sometime back with this and some other scenarios in mind: <a href="https://github.com/gluster/glusterfs/issues/363" target="_blank">https://github.com/<wbr>gluster/glusterfs/issues/363</a>.</div><div><br></div><div>-- Manoj</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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