<div dir="ltr"><div>Couldn't find the discussion you referenced in the irc logs going even a month back :-(<br><br></div><div>But I will get on the irc channel now and see if someone will rehash it for me :-) Plus I have a couple more q's.<br>
</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Jan 10, 2013 at 6:27 PM, Joe Julian <span dir="ltr"><<a href="mailto:joe@julianfamily.org" target="_blank">joe@julianfamily.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>I don't have time to write up a long
answer right now (work's killing me today) but if you search for
lvm on the IRC log, we had a bit of a discussion about that a few
days (or was it a week... they're all blending together) ago.<div><div class="h5"><br>
<br>
On 01/10/2013 03:06 PM, Gaurav P wrote:<br>
</div></div></div>
<blockquote type="cite"><div><div class="h5">
<div dir="ltr">*bump*<br>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Mon, Jan 7, 2013 at 8:13 PM, Gaurav
P <span dir="ltr"><<a href="mailto:gaurav.lists+gluster@gmail.com" target="_blank">gaurav.lists+gluster@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 dir="ltr">
<div>
<div>Hi,<br>
<br>
</div>
I've been reading up on GlusterFS and I'm looking for
best practices around using multiple disks as bricks in
servers that will be part of a replicated volume. <br>
<br>
Say I start with a single disk each in two servers
(/dev/sda1 mounted at /a)<br>
<pre>gluster volume create test-volume replica 2 transport tcp server1:/a server2:/a</pre>
<br>
</div>
Then I add a second disk in each server (/dev/sdb1 mounted
at /b)<br>
<pre>gluster volume add-brick test-volume replica 2 transport tcp server1:/b server2:/b</pre>
<br>
<div>With this (after rebalancing), am I correct in
understanding that I will have a distributed replicated
volume with GlusterFS providing the equivalent of
RAID1+0 for data on my volume. <br>
<br>
</div>
<div>Now as I understand, I will be restricted to adding
disks (bricks) of the same size whenever I need to
extend the volume. What are the pros/cons of instead
using LVM to provide a single LV on each server and
extending the LV and filesystem each time I add
additional storage? The other benefit to LVM being the
ability to take snapshots. The one downside I foresee is
that a concatenated LV will not use the second PV (disk)
till the first PV is full, though I could perhaps
stripe?<br>
<br>
More questions to follow, but I'm trying to think
through this before I get started with my first
deployment.<br>
<br>
</div>
<div>TIA<span><font color="#888888"><br>
</font></span></div>
<span><font color="#888888">
<div>
Gaurav<br>
</div>
</font></span></div>
</blockquote>
</div>
<br>
</div>
<br>
<fieldset></fieldset>
<br>
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