<div dir="ltr">Hey,<div><br></div><div>I have a similar issue, over a slow line glusterfs seemed to divide the speed by two for writes. So perhaps you might look into geo-replication ? I haven't found a solution yet.</div><div><br></div><div>*following this topic*<br><br></div><div>Svenn</div></div><div class="gmail_extra"><br><div class="gmail_quote">2014-12-07 18:25 GMT+01:00 Christian Völker <span dir="ltr"><<a href="mailto:chrischan@knebb.de" target="_blank">chrischan@knebb.de</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<br>
<br>
I have not found an answer to my questions regarding GlusterFS so I<br>
decided to ask here.<br>
<br>
We have two sites which are connected through a slow 10Mbit line. But I<br>
want users accessing shared files on both sites with optimized performance.<br>
<br>
My first thought was to use drbd for this but then I would need a<br>
clustered file system(which would additionally put load on the<br>
connection) and I would have slow write access on both sites.<br>
<br>
So I am currently testing GlusterFS- am I right about the following?<br>
<br>
-Reads will always be send from the local disk<br>
-Writes go through local disk first and are replicated then. When does<br>
the client get confirmation of succesful write? Once the data is fully<br>
replicated or earlier? In first case it would slow down writes as the<br>
nodes are connected only through a small 10Mbit line, correct?<br>
-How does glusterFS handle a dual-head situation? In case the connection<br>
between the two nodes goes down? what happens when connection is back then?<br>
-I want to have access to my data on both sites (nodes), so for me a<br>
replicated volume would be fine?<br>
-thhe term "distributed" means the data is just spread across the local<br>
bricks, right? So having a single brick protected by hardware raid, is<br>
fine, too?<br>
<br>
I am not sure about how many bricks are recommended to use for what<br>
scenario.<br>
<br>
Well, loads of questiosn, thanks for your patience....<br>
<br>
Greetings<br>
<br>
Christian<br>
<br>
<br>
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</blockquote></div><br></div>