I ran the 5g iozone test on my ceph system and I got the following output on the terminal: hp1:/media/ceph # /opt/iozone/bin/iozone -Rab 20120519_1641_results_5g.xls -R -i 0 -i 2 -f /media/ceph/iozone.file -s 5g Iozone: Performance Test of File I/O Version $Revision: 3.408 $ Compiled for 64 bit mode. Build: linux-AMD64 Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins Al Slater, Scott Rhine, Mike Wisner, Ken Goss Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR, Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner, Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root, Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer. Ben England. Run began: Mon Jun 4 20:27:31 2012 Excel chart generation enabled Auto Mode Excel chart generation enabled File size set to 5242880 KB Command line used: /opt/iozone/bin/iozone -Rab 20120519_1641_results_5g.xls -R -i 0 -i 2 -f /media/ceph/iozone.file -s 5g Output is in Kbytes/sec Time Resolution = 0.000001 seconds. Processor cache size set to 1024 Kbytes. Processor cache line size set to 32 bytes. File stride size set to 17 * record size. random random bkwd record stride KB reclen write rewrite read reread read write read rewrite read fwrite frewrite fread freread 5242880 4 34256 32763 Killed Message from syslogd@hp1 at Jun 4 22:19:03 ... kernel:[ 7627.132065] Oops: 0000 [#1] PREEMPT SMP Message from syslogd@hp1 at Jun 4 22:19:03 ... kernel:[ 7627.132190] Stack: Message from syslogd@hp1 at Jun 4 22:19:03 ... kernel:[ 7627.132213] Call Trace: Message from syslogd@hp1 at Jun 4 22:19:03 ... kernel:[ 7627.132356] Code: ab c0 fe ff ff 0f 84 85 00 00 00 31 f6 48 89 df e8 03 d7 ff ff 4c 89 ef 48 89 44 24 28 e8 f6 91 ed e0 48 8b 44 24 28 48 8b 50 08 Message from syslogd@hp1 at Jun 4 22:19:03 ... kernel:[ 7627.132426] CR2: 000000000000000a Can anybody help me with this?? --Udit Agarwal -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html