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Apologies, I should have been more descriptive.<br>
<br>
I am running a dedicated MGS node and MGT device. The MDT is a
standalone RAID-10 shared via SAS between two nodes, one being the
current MDS and the second being the planned secondary MDS.
Heartbeat and stonith w/ ipmi control is currently configured but
not started between the two nodes.<br>
<br>
<br>
On 6/14/11 12:12 PM, Cliff White wrote:
<blockquote
cite="mid:BANLkTimByK4jpqukcY2yzCwaXxyMRfpOhg@mail.gmail.com"
type="cite">It depends - are you using a combined MGS/MDS?
<div>If so, you will have to update the mgsnid on all servers to
reflect the failover node,</div>
<div>plus change the client mount string to show the failover
node. </div>
<div>
otherwise, it's the same procedure as with an OST.</div>
<div>cliffw</div>
<div><br>
<br>
<div class="gmail_quote">On Tue, Jun 14, 2011 at 12:06 PM, Jeff
Johnson <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:jeff.johnson@aeoncomputing.com">jeff.johnson@aeoncomputing.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">Greetings,<br>
<br>
I am attempting to add mds failover operation to an existing
v1.8.4<br>
filesystem. I have heartbeat/stonith configured on the mds
nodes. What<br>
is unclear is what to change in the lustre parameters. I
have read over<br>
the 1.8.x and 2.0 manuals and they are unclear as exactly
how to enable<br>
failover mds operation on an existing filesystem.<br>
<br>
Do I simply run the following on the primary mds node and
specify the<br>
NID of the secondary mds node?<br>
<br>
tunefs.lustre --param="failover.node=10.0.1.3@o2ib"
/dev/<mdt device><br>
<br>
where: 10.0.1.2=primary mds, 10.0.1.3=secondary mds<br>
<br>
All of the examples for enabling failover via tunefs.lustre
are for OSTs<br>
and I want to be sure that there isn't a different procedure
for the MDS<br>
since it can only be active/passive.<br>
<br>
Thanks,<br>
<br>
--Jeff<br>
<br>
------------------------------<br>
Jeff Johnson<br>
Aeon Computing<br>
<br>
<a moz-do-not-send="true"
href="http://www.aeoncomputing.com" target="_blank">www.aeoncomputing.com</a><br>
4905 Morena Boulevard, Suite 1313 - San Diego, CA 92117<br>
<br>
_______________________________________________<br>
Lustre-discuss mailing list<br>
<a moz-do-not-send="true"
href="mailto:Lustre-discuss@lists.lustre.org">Lustre-discuss@lists.lustre.org</a><br>
<a moz-do-not-send="true"
href="http://lists.lustre.org/mailman/listinfo/lustre-discuss"
target="_blank">http://lists.lustre.org/mailman/listinfo/lustre-discuss</a><br>
</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
cliffw
<div>Support Guy</div>
<div>WhamCloud, Inc. </div>
<div><a moz-do-not-send="true" href="http://www.whamcloud.com"
target="_blank">www.whamcloud.com</a></div>
<div><br>
</div>
<br>
</div>
</blockquote>
<br>
------------------------------<br>
<pre class="moz-signature" cols="72">Jeff Johnson
Aeon Computing
<a class="moz-txt-link-abbreviated" href="http://www.aeoncomputing.com">www.aeoncomputing.com</a>
4905 Morena Boulevard, Suite 1313 - San Diego, CA 92117
</pre>
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