<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jan 26, 2018 at 4:58 PM, <span dir="ltr"><<a href="mailto:ovirt@fateknollogee.com" target="_blank">ovirt@fateknollogee.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Yaniv,<br>
<br>
You bring up a valid point.<br>
<br>
I asked about RAID since I was concerned about drive failures & performance.<br>
Since Gluster will handle data replication, using HBA seems like a better choice?<br></blockquote><div><br></div><div>Without local node replication (RAID), a failed disk == a failed node. This may or may not be acceptable.</div><div>Y.</div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
>From Yaniv:<br>
</blockquote></blockquote><span class="">
I think there are two interesting questions here:<br>
1. Why would you want RAID? Your data is replicated already on other<br>
Gluster nodes. RAID writes will wear out the SSDs earlier and RAID 'wastes'<br>
additional space. The reason may be because you don't want the node to go<br>
down in case of a single disk malfunction. Fair - but is that the case?<br>
2. I think HW RAID should be higher performing, but that's about it.<br>
Y.<br>
<br></span><div><div class="h5">
On 2018-01-10 12:05, Roberto Nunin wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
Il 10 Gen 2018 20:40, <<a href="mailto:ovirt@fateknollogee.com" target="_blank">ovirt@fateknollogee.com</a>> ha scritto:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
oVirt + Gluster (hyperconverged) RAID question:<br>
I have 3 nodes of SuperMicro hardware, each node has 1x SATADOM<br>
(boot drive for o/s install) and 6x 1TB SSD (to be used for<br>
Gluster).<br>
For the SSDs, is hardware or software RAID preferred or do I use an<br>
HBA?<br>
The RedHat docs seem to suggest hardware RAID, others on the forum<br>
say HBA or software RAID.<br>
<br>
What are other folks using?<br>
</blockquote>
<br>
I'm using hardware raid.<br>
<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
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