Hi, Thank you all for your support in resolving the issue. As I mentioned in my previous post that I ran my iozone test again on a 5G file excluding the 4k record size. And now, I have successfully completed this test with record sizes of 8k and 16k and hopefully all others will also work fine. But I am still confused with the failure of the iozone test on 5G & 5M file with record size 4k, while it worked happily for files of sizes 10M & 10G. Can anyone help me with this problem with suitable reasons?? Thanks in advance. --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