Yep the multi resources config seems to work reliably - Thank you very much for all your help and pointers ...<div><br></div><div>One thing is I tried to stop drbd in the secondary node, and start again after a while, I saw the primary they sync the whole disk - I am pretty sure that there is no data written to the primary during the secondary off - Is it normal behavior? It is rather slow process anyway - I would think it auto detect and sync partially.</div>
<div><br></div><div>Cheers,</div><div><br></div><div><br><br><div class="gmail_quote">On Thu, Nov 17, 2011 at 10:14 PM, Steve Kieu <span dir="ltr"><<a href="mailto:msh.computing@gmail.com">msh.computing@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="gmail_quote"><div class="im"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><br>
</div>Right.<br>
Actually, you *can not* do that with multiple volumes within one resource.<br>
Or, if you could, that would be a bug.<br>
Volumes within one resource are supposed to be active on the same side.<br>
<div><br></div></blockquote><div><br></div><div><br></div></div><div>I remembered that I could bring primary up individually, I might be wrong though - not retested it yet.</div><div><br></div><div>Just switch back to multi resource (Um I have to spend another port for second resource in this case) - it is syncing now - will test again in this config</div>
<div><br></div><div>Many thanks,</div><div class="im"><div><br></div><div><br></div><div><br></div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>
> > How many resources can I make? I have 12 so far (one per virtual<br>
> > machine.) The machines seem to be coping ok. Is there any limit,<br>
> > arbitrary or otherwise?<br>
><br>
> The number of available DRBD devices is set by the "minor_count" module<br>
> parameter. The default, iirc, is 32.<br>
<br>
</div>Which means you can use up to 256 (or 255, not so sure there)<br>
DRBD minors with 8.3.<br>
<br>
With 8.4, you can use "arbitrarily" many minor devices (one million, in<br>
theory), minor_count is a hint only with 8.4, not a hard limit anymore.<br>
<div><br>
--<br>
: Lars Ellenberg<br>
: LINBIT | Your Way to High Availability<br>
: DRBD/HA support and consulting <a href="http://www.linbit.com" target="_blank">http://www.linbit.com</a><br>
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</div></div></blockquote></div></div><font color="#888888"><br><br clear="all"><div><br></div>-- <br>Steve Kieu<br>
</font></blockquote></div><br><br clear="all"><div><br></div>-- <br>Steve Kieu<br>
</div>