<div dir="ltr"><div>Thanks for you help!</div><div style>I'll need to figure out a way to recreate the volume as replica 2 without messing with the running vms.</div><div style><br></div><div style><br></div></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Wed, Apr 10, 2013 at 7:25 PM, Bryan Whitehead <span dir="ltr"><<a href="mailto:driver@megahappy.net" target="_blank">driver@megahappy.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I just want to say that trying to run a VM on almost any glusterfs<br>
mounted fuse is going to suck when using 1G nic cards.<br>
<br>
That said your setup looks fine except you need to change "replica 4"<br>
to "replica 2". I'm assuming you want redundancy and speed.<br>
Replicating to all 4 bricks is probably not what you wanted. By<br>
setting replica to 2 you'll be able to lose any 1 of the 4 bricks and<br>
still run without data missing.<br>
<br>
gluster volume create replica 2 <... list all 4 bricks><br>
<div class="HOEnZb"><div class="h5"><br>
<br>
<br>
On Tue, Apr 9, 2013 at 3:49 AM, Stephan von Krawczynski<br>
<<a href="mailto:skraw@ithnet.com">skraw@ithnet.com</a>> wrote:<br>
> On Tue, 09 Apr 2013 03:13:10 -0700<br>
> Robert Hajime Lanning <lanning@lanning.cc> wrote:<br>
><br>
>> On 04/09/13 01:17, Eyal Marantenboim wrote:<br>
>> > Hi Bryan,<br>
>> ><br>
>> > We have 1G nics on all our servers.<br>
>> > Do you think that changing our design to distribute-replicate will<br>
>> > improve the performance?<br>
>> ><br>
>> > Anything in the gluster performance settings that you think I should change?<br>
>><br>
>> With GlusterFS, almost all the processing is in the client side. This<br>
>> includes replication. So, when you have "replica 4", the client will be<br>
>> duplicating all transactions 4 times, synchronously. Your 1G ethernet<br>
>> just became 256M.<br>
><br>
> Let me drop in that no clear mind does it this way. Obviously one would give<br>
> the client more physical network cards, best choice as many as there are<br>
> replications, and do the subnetting accordingly.<br>
><br>
> --<br>
> Regards,<br>
> Stephan<br>
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</div></div></blockquote></div><br></div>