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<p>Danti,</p>
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<p>Have you considered using something other than drbd for VM disk storage? Glusterfs for example is really good for that. You may want to give it a try. You should look at enabling sharding from the get-go to speed up heals when a node goes down.</p>
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<p>I would not use Glusterfs for a file server as it's performance is abysmal dealing with lots of small files. I would definitively use DRBD for a file server as it is great in handling lots of small files whereas Glusterfs is horrible. But for VMs, I think
gluster offers many niceties, easy to setup, good performance, no need to deal with GFS2, etc. </p>
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<p>HTH,</p>
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<p>Diego</p>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> drbd-user-bounces@lists.linbit.com <drbd-user-bounces@lists.linbit.com> on behalf of Gionatan Danti <g.danti@assyoma.it><br>
<b>Sent:</b> Friday, August 25, 2017 3:37:41 PM<br>
<b>To:</b> Digimer<br>
<b>Cc:</b> drbd-user@lists.linbit.com<br>
<b>Subject:</b> Re: [DRBD-user] DRBD Dual Primary + GFS2 for redundant KVM hosts</font>
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<div class="PlainText">Il 25-08-2017 14:34 Digimer ha scritto:<br>
> <br>
> Our Anvil! project (<a href="https://www.alteeve.com/w/Build_an_m2_Anvil!">https://www.alteeve.com/w/Build_an_m2_Anvil!</a>) is<br>
> basically this, except we put the VMs on clustered LVs and use gfs2 to<br>
> store install media and the server XML files.<br>
> <br>
> I would NOT put the image files on gfs2, as the distributed locking<br>
> overhead would hurt performance a fair bit.<br>
<br>
Hi, I contemplated using an active/active lvm-based configuration, but I <br>
would really like to use files as per VM disks.<br>
So, do you feel GFS2 would be inadequate for VM disk storage? What if a <br>
node crashes/reboots? Will GFS2 continue to work?<br>
<br>
Thanks.<br>
<br>
-- <br>
Danti Gionatan<br>
Supporto Tecnico<br>
Assyoma S.r.l. - <a href="http://www.assyoma.it">www.assyoma.it</a><br>
email: g.danti@assyoma.it - info@assyoma.it<br>
GPG public key ID: FF5F32A8<br>
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