Controller Level FUA RC WC WJ Disks dd bonnie++ fio
read write rewrite read 4KB IOPS write 4KB IOPS
read write block block block seq Q1 rand Q32 seq Q1 rand Q32
LSI SAS 9211-4i JBOD+MD RAID10 64K Honor No No No 4xIntel 520 120GB 591 MB/s 530 MB/s 915667 KB/s 422518 KB/s 338466 KB/s 15576 80272 14595 50502