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Le 06/09/2013 15:22, Olivier Desport a écrit :<br>
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<blockquote cite="mid:5229D71D.2000902@ac-versailles.fr" type="cite">
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Le 06/09/2013 15:15, Vijay Bellur a écrit :<br>
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<blockquote cite="mid:5229D567.1070303@redhat.com" type="cite">On
09/06/2013 05:46 PM, Olivier Desport wrote: <br>
<blockquote type="cite">Hello, <br>
<br>
I'm testing a two nodes glusterfs distributed cluster (version
3.3.1-1) <br>
on Debian 7. The two nodes write on the same iscsi volume on a
SAN. <br>
<br>
When I try to write an 1G file with dd, I have the following
results : <br>
<br>
NFS : 107 Mbytes/s <br>
Gluster client : 8 Mbytes/sec <br>
<br>
</blockquote>
<br>
What is the block size being used with dd? With smaller block
sizes, write throughput on native client would be low. If a
bigger block size like 128 KB is used, the throughput would be
better. <br>
<br>
-Vijay <br>
</blockquote>
The block size is 1k :<br>
<br>
dd if=/dev/zero of=/data/cms/500m-client-gluster-2 bs=1k
count=500000<br>
<br>
<br>
</blockquote>
<br>
I tried with bs=128k and the write speed is 222 MBytes/s !<br>
<br>
<br>
<blockquote cite="mid:5229D71D.2000902@ac-versailles.fr" type="cite">
<br>
<blockquote cite="mid:5229D567.1070303@redhat.com" type="cite"> <br>
<blockquote type="cite">My /etc/fstab on the client : <br>
<br>
/etc/glusterfs/cms.vol /data/cms glusterfs defaults 0 0 <br>
<br>
I'd like to use the gluster protocol because it can give me
HA. Can you <br>
help me to increase the perfs ? <br>
<br>
Thanks. <br>
<br>
<br>
<br>
<br>
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