/Hi, On Tue, 2011-05-24 at 17:09 +0530, Taousif_Ansari@xxxxxxxxxxxx wrote: > Hi Bruce, Shyam > > As mentioned here http://wiki.linux-nfs.org/wiki/index.php/PNFS_server_projects gfs2 is also having issues(crashes, performance), so instead of going for gfs2 can we debug spNFS itself to get high performance? > > > -Taousif > As far as I'm aware that is historical information. If there are still problems with GFS2, then please report them so we can work on them, Steve. > -----Original Message----- > From: Iyer, Shyam > Sent: Thursday, May 19, 2011 8:08 PM > To: Ansari, Taousif - Dell Team; bfields@xxxxxxxxxxxx > Cc: linux-nfs@xxxxxxxxxxxxxxx > Subject: RE: Performance Issue with multiple dataserver > > > > > -----Original Message----- > > From: linux-nfs-owner@xxxxxxxxxxxxxxx [mailto:linux-nfs- > > owner@xxxxxxxxxxxxxxx] On Behalf Of Ansari, Taousif - Dell Team > > > > Can you please elaborate GFS2-setup a bit more... > > > I guess Bruce is saying the step-by-step procedure is not written up... > > Create a Redhat cluster using the shared block storage(iSCSI in your case I guess). You would get documentation on creating a RH cluster in many places.. > > All the MDSs and the DSs need to be part of the cluster. > > Format GFS2 on the shared iSCSI storage. > > Mount the GFS2 formatted iSCSI storage on all the MDSs and DSs and export them via NFS. Use Benny's tree for NFS. > > The GFS2 cluster backend is your glue to scale the MDSes and DSes. > > > > > -----Original Message----- > > From: J. Bruce Fields [mailto:bfields@xxxxxxxxxxxx] > > Sent: Thursday, May 19, 2011 7:14 PM > > To: Ansari, Taousif - Dell Team > > Cc: linux-nfs@xxxxxxxxxxxxxxx > > Subject: Re: Performance Issue with multiple dataserver > > > > On Thu, May 19, 2011 at 06:44:59PM +0530, Taousif_Ansari@xxxxxxxxxxxx > > wrote: > > > Then what should I follow, and what details are needed.... > > > > There isn't really any supported server-side pNFS. > > > > The closest is the GFS2-based code, for which you need to install > > Benny's latest tree, configure a shared block device, create a GFS2 > > filesystem on it, mount it across all DS's and the MDS, and export it > > from all of them--but I don't believe anyone has written step-by-step > > instructions for that. > > > > --b. > > > > > > > > -----Original Message----- > > > From: linux-nfs-owner@xxxxxxxxxxxxxxx [mailto:linux-nfs- > > owner@xxxxxxxxxxxxxxx] On Behalf Of J. Bruce Fields > > > Sent: Thursday, May 19, 2011 6:43 PM > > > To: Ansari, Taousif - Dell Team > > > Cc: linux-nfs@xxxxxxxxxxxxxxx > > > Subject: Re: Performance Issue with multiple dataserver > > > > > > On Thu, May 19, 2011 at 06:09:21PM +0530, Taousif_Ansari@xxxxxxxxxxxx > > wrote: > > > > I have followed the way given on http://wiki.linux- > > nfs.org/wiki/index.php/Configuring_pNFS/spnfsd . > > > > > > Oh. As noted there, spnfs is unmaintained. > > > > > > And, in any case, we'd need many more details about your setup. > > > > > > --b. > > > > > > > > > > > -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 > > -- > > 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 -- 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
