#diskinfo -c -t /dev/ad0s1a
| 2011.10.25 |
/dev/ad0s1a
512 # sectorsize
2147483648 # mediasize in bytes (2.0G)
4194304 # mediasize in sectors
4161 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
ad:3FG0EB76s0s0 # Disk ident.
I/O command overhead:
time to read 10MB block 0.790693 sec = 0.039 msec/sector
time to read 20480 sectors 2.475622 sec = 0.121 msec/sector
calculated command overhead = 0.082 msec/sector
Seek times:
Full stroke: 250 iter in 12.407057 sec = 49.628 msec
Half stroke: diskinfo: read error or disk too small for test.: No such file or directory
===================================================================================================
/dev/ad10s1d
512 # sectorsize
2000388063744 # mediasize in bytes (1.8T)
3907007937 # mediasize in sectors
3875999 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
ad:MN1221F3015PPAs0s3 # Disk ident.
I/O command overhead:
time to read 10MB block 0.142389 sec = 0.007 msec/sector
time to read 20480 sectors 1.689862 sec = 0.083 msec/sector
calculated command overhead = 0.076 msec/sector
Seek times:
Full stroke: 250 iter in 6.066081 sec = 24.264 msec
Half stroke: 250 iter in 4.825183 sec = 19.301 msec
Quarter stroke: 500 iter in 7.948886 sec = 15.898 msec
Short forward: 400 iter in 1.517597 sec = 3.794 msec
Short backward: 400 iter in 1.921583 sec = 4.804 msec
Seq outer: 2048 iter in 0.185228 sec = 0.090 msec
Seq inner: 2048 iter in 0.194037 sec = 0.095 msec
Transfer rates:
outside: 102400 kbytes in 0.811261 sec = 126,223 kbytes/sec
middle: 102400 kbytes in 1.158508 sec = 88,390 kbytes/sec
inside: 102400 kbytes in 1.448788 sec = 70,680 kbytes/sec
===================================================================================================
/dev/stripe/st0a
512 # sectorsize
800176898048 # mediasize in bytes (745G)
1562845504 # mediasize in sectors
I/O command overhead:
time to read 10MB block 0.237582 sec = 0.012 msec/sector
time to read 20480 sectors 1.628969 sec = 0.080 msec/sector
calculated command overhead = 0.068 msec/sector
Seek times:
Full stroke: 250 iter in 1.580470 sec = 6.322 msec
Half stroke: 250 iter in 4.481658 sec = 17.927 msec
Quarter stroke: 500 iter in 7.265347 sec = 14.531 msec
Short forward: 400 iter in 1.276615 sec = 3.192 msec
Short backward: 400 iter in 2.368622 sec = 5.922 msec
Seq outer: 2048 iter in 0.168932 sec = 0.082 msec
Seq inner: 2048 iter in 0.230193 sec = 0.112 msec
Transfer rates:
outside: 102400 kbytes in 2.288359 sec = 44,748 kbytes/sec
middle: 102400 kbytes in 2.331629 sec = 43,918 kbytes/sec
inside: 102400 kbytes in 2.398416 sec = 42,695 kbytes/sec
| SSD reference |
| FreeBSD 8.0-RELEASE-p2 on a Intel X-25V G2 40GB ad0: 38166MB <INTEL SSDSA2M040G2GC 2CV102HB> at ata0-master SATA300 |
/dev/ad0s1a
512 # sectorsize
35826328064 # mediasize in bytes (33G)
69973297 # mediasize in sectors
69417 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
CVGB950400J8040GGN # Disk ident.
I/O command overhead:
time to read 10MB block 0.063820 sec = 0.003 msec/sector
time to read 20480 sectors 1.878730 sec = 0.092 msec/sector
calculated command overhead = 0.089 msec/sector
Seek times:
Full stroke: 250 iter in 0.018572 sec = 0.074 msec
Half stroke: 250 iter in 0.017989 sec = 0.072 msec
Quarter stroke: 500 iter in 0.034450 sec = 0.069 msec
Short forward: 400 iter in 0.023765 sec = 0.059 msec
Short backward: 400 iter in 0.032332 sec = 0.081 msec
Seq outer: 2048 iter in 0.095603 sec = 0.047 msec
Seq inner: 2048 iter in 0.099419 sec = 0.049 msec
Transfer rates:
outside: 102400 kbytes in 0.654993 sec = 156,338 kbytes/sec
middle: 102400 kbytes in 0.508768 sec = 201,271 kbytes/sec
inside: 102400 kbytes in 0.438239 sec = 233,662 kbytes/sec
換上 i7 3770 + 32GB DDR3-1600 + Intel 60G SSD
| Seagate 3T preference |
| FreeBSD 9.0-RELEASE on a Intel i7-3770 Intel 60GB SSD 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C) <ST3000DM001-1CH166 CC26> ATA-8 SATA 3.x device 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) |
# diskinfo -c -t ada4
ada4
512 # sectorsize
3000592982016 # mediasize in bytes (2.7T)
5860533168 # mediasize in sectors
4096 # stripesize
0 # stripeoffset
5814021 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
Z1F2KQRW # Disk ident.
I/O command overhead:
time to read 10MB block 0.085803 sec = 0.004 msec/sector
time to read 20480 sectors 2.805409 sec = 0.137 msec/sector
calculated command overhead = 0.133 msec/sector
Seek times:
Full stroke: 250 iter in 5.836573 sec = 23.346 msec
Half stroke: 250 iter in 4.805167 sec = 19.221 msec
Quarter stroke: 500 iter in 7.186838 sec = 14.374 msec
Short forward: 400 iter in 2.784582 sec = 6.961 msec
Short backward: 400 iter in 3.006485 sec = 7.516 msec
Seq outer: 2048 iter in 0.109606 sec = 0.054 msec
Seq inner: 2048 iter in 0.122363 sec = 0.060 msec
Transfer rates:
outside: 102400 kbytes in 0.637955 sec = 160513 kbytes/sec
middle: 102400 kbytes in 0.655223 sec = 156283 kbytes/sec
inside: 102400 kbytes in 1.138707 sec = 89927 kbytes/sec
| M4 SSD preference |
| FreeBSD 9.0-RELEASE on a Intel i7-3770 Intel 60GB SSD 61057MB (125045424 512 byte sectors: 16H 63S/T 16383C) <M4-CT064M4SSD2 0309> ATA-9 SATA 3.x device 600.000MB/s transfers (SATA 3.x, UDMA5, PIO 8192bytes) |
# diskinfo -c -t ada1
ada1
512 # sectorsize
64023257088 # mediasize in bytes (59G)
125045424 # mediasize in sectors
0 # stripesize
0 # stripeoffset
124053 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
0000000012040903906D # Disk ident.
I/O command overhead:
time to read 10MB block 0.025089 sec = 0.001 msec/sector
time to read 20480 sectors 2.586625 sec = 0.126 msec/sector
calculated command overhead = 0.125 msec/sector
Seek times:
Full stroke: 250 iter in 0.023385 sec = 0.094 msec
Half stroke: 250 iter in 0.022136 sec = 0.089 msec
Quarter stroke: 500 iter in 0.046318 sec = 0.093 msec
Short forward: 400 iter in 0.021267 sec = 0.053 msec
Short backward: 400 iter in 0.024207 sec = 0.061 msec
Seq outer: 2048 iter in 0.085891 sec = 0.042 msec
Seq inner: 2048 iter in 0.083071 sec = 0.041 msec
Transfer rates:
outside: 102400 kbytes in 0.234245 sec = 437149 kbytes/sec
middle: 102400 kbytes in 0.244598 sec = 418646 kbytes/sec
inside: 102400 kbytes in 0.244301 sec = 419155 kbytes/sec
| Intel SSD preference |
| FreeBSD 9.0-RELEASE on a Intel i7-3770 Intel 60GB SSD 57241MB (117231408 512 byte sectors: 16H 63S/T 16383C) <INTEL SSDSC2CT060A3 300i> ATA-9 SATA 3.x device 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes) |
# diskinfo -c -t ada0
ada0
512 # sectorsize
60022480896 # mediasize in bytes (55G)
117231408 # mediasize in sectors
0 # stripesize
0 # stripeoffset
116301 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
CVMP244201EL060AGN # Disk ident.
I/O command overhead:
time to read 10MB block 0.037665 sec = 0.002 msec/sector
time to read 20480 sectors 1.021471 sec = 0.050 msec/sector
calculated command overhead = 0.048 msec/sector
Seek times:
Full stroke: 250 iter in 0.037686 sec = 0.151 msec
Half stroke: 250 iter in 0.028780 sec = 0.115 msec
Quarter stroke: 500 iter in 0.022012 sec = 0.044 msec
Short forward: 400 iter in 0.018321 sec = 0.046 msec
Short backward: 400 iter in 0.013554 sec = 0.034 msec
Seq outer: 2048 iter in 0.112006 sec = 0.055 msec
Seq inner: 2048 iter in 0.100825 sec = 0.049 msec
Transfer rates:
outside: 102400 kbytes in 0.351457 sec = 291359 kbytes/sec
middle: 102400 kbytes in 0.234319 sec = 437011 kbytes/sec
inside: 102400 kbytes in 0.343096 sec = 298459 kbytes/sec
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