Hi everyone, I did some simple tests in order to figure out if Ceph has a direct I/O full support. I don't know why but when I try create a file > to 9M I get an error from dd, same with sg_dd: $ sudo dd if=/dev/zero of=/mnt/directio bs=9M count=1 oflag=direct 1+0 records in 1+0 records out 9437184 bytes (9.4 MB) copied, 0.0889428 s, 106 MB/s And > 9: $ mount | grep ceph 172.17.1.4:6789,172.17.1.5:6789,172.17.1.7:6789:/ on /mnt type ceph (name=admin,key=client.admin) $ dd if=/dev/zero of=/mnt/directio bs=10M count=1 oflag=direct dd: writing `/mnt/directio': Bad address 1+0 records in 0+0 records out 0 bytes (0 B) copied, 1.20184 s, 0.0 kB/s Thank you in advance :) Cheers! -- 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
