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<div class="moz-cite-prefix">Okay, just tried it in 3.9 Even though
attaching a non arbiter volume (say a replica-2 ) as hot-tier is
succeeding at the CLI level, the brick volfiles seem to be
generated incorrectly (I see that the arbiter translator is
getting loaded in one of the replica-2 bricks too, which is
incorrect). I'd recommend not to use arbiter for tiering
irrespective of hot or cold tier.<br>
<br>
<br>
On 05/05/2017 09:42 PM, Walter Deignan wrote:<br>
</div>
<blockquote
cite="mid:OF54A43C35.DD94594B-ON86258117.0058CB52-86258117.005901ED@uline.com"
type="cite"><font face="Arial" size="3">Did that change between
3.9 and 3.10? When I
originally saw some references on the Redhat storage packaged
solution
about a possible incompatibility I assumed it just meant that
the hot tier
itself couldn't be an arbiter volume.</font>
<br>
<br>
<font face="Arial" size="3">I was tripped up by the change in
apparent
support for the cold tier between 3.9 and 3.10. But maybe that
was just
a fixed oversight which never should have worked in the first
place?</font>
<br>
<br>
<font face="Arial" size="3">-Walter Deignan<br>
-Uline IT, Systems Architect</font>
<br>
<br>
<br>
<br>
<font color="#5f5f5f" face="sans-serif" size="1">From:
</font><font face="sans-serif" size="1">Ravishankar N
<a class="moz-txt-link-rfc2396E" href="mailto:ravishankar@redhat.com"><ravishankar@redhat.com></a></font>
<br>
<font color="#5f5f5f" face="sans-serif" size="1">To:
</font><font face="sans-serif" size="1">Walter Deignan
<a class="moz-txt-link-rfc2396E" href="mailto:WDeignan@uline.com"><WDeignan@uline.com></a>,
<a class="moz-txt-link-abbreviated" href="mailto:gluster-users@gluster.org">gluster-users@gluster.org</a></font>
<br>
<font color="#5f5f5f" face="sans-serif" size="1">Date:
</font><font face="sans-serif" size="1">05/05/2017 11:08 AM</font>
<br>
<font color="#5f5f5f" face="sans-serif" size="1">Subject:
</font><font face="sans-serif" size="1">Re: [Gluster-users]
Arbiter and Hot Tier</font>
<br>
<hr noshade="noshade">
<br>
<br>
<br>
<font size="3">Hi Walter,<br>
Yes, arbiter volumes are currently not supported with tiering.<br>
-Ravi<br>
<br>
On 05/05/2017 08:54 PM, Walter Deignan wrote:</font>
<br>
<font face="Arial" size="3">I've been googling this to no avail so
apologies
if this is explained somewhere I missed.</font><font size="3"> <br>
</font><font face="Arial" size="3"><br>
Is there a known incompatibility between using arbiters and hot
tiering?</font><font size="3">
<br>
</font><font face="Arial" size="3"><br>
Experience on 3.9</font><font size="3"> <br>
</font><font face="Arial" size="3"><br>
Original volume - replica 3 arbiter 1</font><font size="3"> </font><font
face="Arial" size="3"><br>
Attach replica 2 arbiter 1 hot tier - failure</font><font
size="3"> </font><font face="Arial" size="3"><br>
Attach replica 3 hot tier - success</font><font size="3"> <br>
</font><font face="Arial" size="3"><br>
Experience on 3.10</font><font size="3"> <br>
</font><font face="Arial" size="3"><br>
Original volume - replica 3 arbiter 1</font><font size="3"> </font><font
face="Arial" size="3"><br>
Attach replica 2 arbiter 1 hot tier - failure</font><font
size="3"> </font><font face="Arial" size="3"><br>
Attach replica 3 hot tier - failure</font><font size="3"> </font><font
face="Arial" size="3"><br>
Attach hot tier without specifying replica - success but comes
in as a
distributed tier which I would assume totally negates the point
of having
a replicated cold tier?</font><font size="3"> <br>
</font><font face="Arial" size="3"><br>
The specific error message I get is "volume attach-tier: failed:
Increasing
replica count for arbiter volumes is not supported."</font><font
size="3">
<br>
</font><font face="Arial" size="3"><br>
-Walter Deignan<br>
-Uline IT, Systems Architect</font><font size="3"> <br>
</font>
<br>
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