Hi Stan, I was not subscribed to the list so I did not get your mail. I subscribed now, but apparently and admin has to aprove the subscription since I am not getting any confirmation email. so this will take some time. > On 2/13/2012 10:57 AM, Richard Ems wrote: >> The case is connected through SCSI. > > Do you mean iSCSI? Does the host on which you're running your "find > dir" command have a 1GbE or 10GbE connection to the InforTrend unit? > More than one connection using bonding or multipath? Direct connected > or through a switch(es)? What brand is the switch(es)? Switch(es) > under heavy load? NO. SCSI. Not iSCSI. No switches, it's direct attached through a LSI SCSI Controller: lspci shows: LSI Logic / Symbios Logic 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI > If it's a single direct 1GbE connection it's possible you're running out > of host pipe bandwidth which is only ~100MB/s in each direction. Check > iotop/iostat while running your command to see if you're peaking the > interface with either read or write bytes. If either are at or above > 100MB/s then your host pipe is full, thus this is a significant part of > your high run time problem. This does not apply, or? > Also check the performance data in the management interface on the > InforTrend unit to see if you're hitting any limits there (if it has > such a feature). RAID6 is numerically intensive and that particular > controller may not have the ASIC horsepower to keep up with the IOPS > workload you're throwing at it. There is no performance data in the management interface to check. > Lastly, please paste the exact command or script you refer to as "find > dir" which is generating the workload in question. See previous answers to the list. You will see all commands there. Thanks, Richard -- Richard Ems mail: Richard.Ems@xxxxxxxxxxxxxxxxx Cape Horn Engineering S.L. C/ Dr. J.J. Dómine 1, 5º piso 46011 Valencia Tel : +34 96 3242923 / Fax 924 http://www.cape-horn-eng.com _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
