I have followed the way given on http://wiki.linux-nfs.org/wiki/index.php/Configuring_pNFS/spnfsd . -Taousif -----Original Message----- From: J. Bruce Fields [mailto:bfields@xxxxxxxxxxxx] Sent: Thursday, May 19, 2011 5:20 PM To: Ansari, Taousif - Dell Team Cc: linux-nfs@xxxxxxxxxxxxxxx Subject: Re: Performance Issue with multiple dataserver On Thu, May 19, 2011 at 10:56:44AM +0530, Taousif_Ansari@xxxxxxxxxxxx wrote: > Hi, > > I am using on Server linux-pnfs-2.6.38(linux-pnfs-ae7441f.tar) and on client also linux-pnfs-2.6.38(linux-pnfs-ae7441f.tar) downloaded from http://git.linux-nfs.org/?p=bhalevy/linux-pnfs.git;a=summary on Fedora 14. So you're using GFS2 on the server? With what sort of storage? --b. > > Extremely sorry for causing confusing . > -----Original Message----- > From: J. Bruce Fields [mailto:bfields@xxxxxxxxxxxx] > Sent: Wednesday, May 18, 2011 9:43 PM > To: Ansari, Taousif - Dell Team > Cc: linux-nfs@xxxxxxxxxxxxxxx > Subject: Re: Performance Issue with multiple dataserver > > You sent this message as a reply to an unrelated message, which is > confusing to those of us with threaded mail readers. > > On Wed, May 18, 2011 at 05:24:45PM +0530, Taousif_Ansari@xxxxxxxxxxxx wrote: > > I have done pNFS setup with single Dataserver and Two Dataserver and ran the IOzone tool on both, I found that the performance with multiple dataservers is less than the performance with single dataservers. > > What are you using as the server, and what as the client? > > --b. > > > > > Here are some numbers, which were captured by the IOzone tool. > > > > > > 4 8 16 32 64 128 256 512 1024 <== Record Length in KB > > With Single Dataserver: > > Read operation for file size 1 MB- 66415 66359 63630 70358 86223 70256 66047 66068 68489 <== IO kB/sec > > Write operation for file size 1 MB- 18827 16920 18846 17039 18896 17009 17173 19206 17947 <== IO kB/sec > > > > With Two Dataservers : > > Read operation for file size 1 MB- 36882 381198 38150 38084 38749 33663 34398 37313 37847 <== IO kB/sec > > Write operation for file size 1 MB- 5461 4661 5586 4870 5227 4922 4214 5572 4658 <== IO kB/sec > > > > > > Can somebody tell me What could be the issue.... > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
