Code:
mfid0: <MFI Logical Disk> on mfi0
mfid0: 2860032MB (5857345536 sectors) RAID volume '5' is optimal
Code:
#diskinfo -c -t /dev/mfid0
/dev/mfid0
512 # sectorsize
2998960914432 # mediasize in bytes (2.7T)
5857345536 # mediasize in sectors
364602 # Cylinders according to firmware.
255 # Heads according to firmware.
63 # Sectors according to firmware.
I/O command overhead:
time to read 10MB block 0.064440 sec = 0.003 msec/sector
time to read 20480 sectors 1.267939 sec = 0.062 msec/sector
calculated command overhead = 0.059 msec/sector
Seek times:
Full stroke: 250 iter in 1.329967 sec = 5.320 msec
Half stroke: 250 iter in 2.698421 sec = 10.794 msec
Quarter stroke: 500 iter in 4.543504 sec = 9.087 msec
Short forward: 400 iter in 2.859718 sec = 7.149 msec
Short backward: 400 iter in 3.124898 sec = 7.812 msec
Seq outer: 2048 iter in 0.128327 sec = 0.063 msec
Seq inner: 2048 iter in 0.129799 sec = 0.063 msec
Transfer rates:
outside: 102400 kbytes in 0.325093 sec = 314987 kbytes/sec
middle: 102400 kbytes in 0.398649 sec = 256868 kbytes/sec
inside: 102400 kbytes in 0.376817 sec = 271750 kbytes/sec
4x1TB Samsung on hw raid5