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<DIV>&nbsp;</DIV>

<DIV>About the following issue, anyone could help us? Why using VM&nbsp;mounted 

by NFS V3(which is also&nbsp;provided by gluster) could approach full 

bandwidth(100MB/s),while VM mounted by gluster only reach half of bandwidth 

(50MB/s). </DIV>

<DIV>&nbsp;</DIV>

<DIV>The following is the mount command:</DIV>

<DIV>1)gluster native client: </DIV>

<DIV>mount -t glusterfs&nbsp; server1:/test-volume&nbsp; 

/var/lib/nova/instance/</DIV>

<DIV>2) NFS V3:</DIV>

<DIV>mount&nbsp;-t&nbsp;nfs&nbsp;-o&nbsp;vers=3&nbsp;server1:/test-volume&nbsp;/var/lib/nova/instance/</DIV>

<DIV>&nbsp;</DIV>

<DIV>/var/lib/nova/instance/ is the file directory storing VMs</DIV>

<DIV>&nbsp;</DIV>

<DIV>Thanks.&nbsp;</DIV>

<HR style="WIDTH: 210px; HEIGHT: 1px" align=left color=#b5c4df SIZE=1>


<DIV><SPAN>zhxue</SPAN></DIV>

<DIV>&nbsp;</DIV>

<DIV 

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<DIV>

<DIV>&nbsp;</DIV>

<DIV>Message:&nbsp;6</DIV>

<DIV>Date:&nbsp;Mon,&nbsp;14&nbsp;Jan&nbsp;2013&nbsp;23:13:30&nbsp;+0800</DIV>

<DIV>From:&nbsp;glusterzhxue&nbsp;&lt;glusterzhxue@163.com&gt;</DIV>

<DIV>To:&nbsp;gluster-users&nbsp;&lt;gluster-users@gluster.org&gt;</DIV>

<DIV>Subject:&nbsp;Re:&nbsp;[Gluster-users]&nbsp;Gluster-users&nbsp;Digest,&nbsp;Vol&nbsp;57,&nbsp;Issue&nbsp;31</DIV>

<DIV>Message-ID:&nbsp;&lt;201301142313289494315@163.com&gt;</DIV>

<DIV>Content-Type:&nbsp;text/plain;&nbsp;charset="gb2312"</DIV>

<DIV>&nbsp;</DIV>

<DIV>Thanks&nbsp;all&nbsp;the&nbsp;responses.</DIV>

<DIV>It&nbsp;seems&nbsp;that&nbsp;I&nbsp;need&nbsp;to&nbsp;furtherly&nbsp;describe&nbsp;our&nbsp;question.&nbsp;If&nbsp;our&nbsp;VM&nbsp;is&nbsp;mounted&nbsp;on&nbsp;gluster&nbsp;via&nbsp;NFS(V3),&nbsp;writing&nbsp;big&nbsp;data&nbsp;on&nbsp;VM&nbsp;reach&nbsp;the&nbsp;full&nbsp;bandwidth.&nbsp;However,&nbsp;if&nbsp;VM&nbsp;is&nbsp;mounted&nbsp;by&nbsp;gluster&nbsp;client,&nbsp;it&nbsp;has&nbsp;half&nbsp;bandwidth&nbsp;when&nbsp;writing&nbsp;data&nbsp;on&nbsp;VM&nbsp;(mounted&nbsp;on&nbsp;gluster).&nbsp;</DIV>

<DIV>Considering&nbsp;we&nbsp;don't&nbsp;want&nbsp;VM&nbsp;users&nbsp;see&nbsp;our&nbsp;gluster&nbsp;file&nbsp;system,&nbsp;mount&nbsp;gluster&nbsp;file&nbsp;on&nbsp;VM&nbsp;is&nbsp;not&nbsp;allowed.</DIV>

<DIV>By&nbsp;the&nbsp;way,&nbsp;Where&nbsp;can&nbsp;I&nbsp;get&nbsp;the&nbsp;3.4a&nbsp;version&nbsp;of&nbsp;Gluster?&nbsp;</DIV>

<DIV>&nbsp;</DIV>

<DIV>&nbsp;&nbsp;</DIV>

<DIV>Regards,</DIV>

<DIV>&nbsp;</DIV>

<DIV>&nbsp;</DIV>

<DIV>&nbsp;</DIV>

<DIV>zhxue</DIV>

<DIV>&nbsp;</DIV></DIV></BODY></HTML>