References
[1] "The 3ware StorSwitch Architecture", Technical White Paper, 3ware Inc., April 1999, www.3ware.com. Patterson, D. A.;
Gibson, G. A.; and Katz, R. H. “A case for redundant arrays of inexpensive disks (RAID).”
Proceedings of the 1988 ACM Conference on Management of Data (SIGMOD). ACM Press,
[2] June 1988, 109-116.
[3] Gray, J. and Siewiorek, D. “High-Availability Computer Systems.” Computer,Vol. 24 No. 9, Sept. 1991.
Appendix A. Measurement data
SCSI-Seagate
ATA-Quantum
Barracuda (1 drive)
KA (Twin drives)
Capacity
9.1
GB
9.1
GB
Street Price
$375
$336
($168*2)
GB/$1000
24.3
27.1
Sequential Read
18.8
MB/s
32.1
MB/s
Random 2k Read
121
I/Os /sec
200
I/Os /sec
Sequential Write
17.9
MB/s
19.3
MB/s
WinBench HE Disk Test
13,300
16,200
Years to data loss per TB
0.51
1,761
SCSI-Seagate
ATA-Quantum
Barracuda (RAID 1)
KA (Twin drives)
Capacity
9.1
GB
9.1
GB
Street Price
$750
($375*2)
$336
($168*2)
GB/$1000
12.1
27.1
Sequential Read
18.6
MB/s
32.1
MB/s
Random 2k Read
201
I/Os /sec
200
I/Os /sec
Sequential Write
18.4
MB/s
19.3
MB/s
WinBench HE Disk Test
13,300
16,200
Years to data loss per TB
1,761
1,761
SCSI-Seagate
ATA-Quantum
Cheetah(JBOD)
KA (Twin drives)
Capacity
9.1
GB
9.1
GB
Street Price
$514
$336
($168*2)
GB/$1000
17.7
27.1
Sequential Read
26.1
MB/s
32.1
MB/s
Random 2k Read
155
I/Os /sec
200
I/Os /sec
Sequential Write
23.9
MB/s
19.3
MB/s
WinBench HE Disk Test
16,400
16,200
Years to data loss per TB
1
1,761
SCSI-Seagate
ATA-Quantum
Capacity
27.3
GB
36.4
GB
Street Price
$1,500
($375*4)
$900
($225*4)
GB/$1000
18.2
40.4
Sequential Read
52.7
MB/s
47.8
MB/s
Random 2k Read
317
I/Os /sec
379
I/Os /sec
Sequential Write
6.8
MB/s
21.9
MB/s
WinBench HE Disk Test
7,080
19,000
Years to data loss per TB
587
1,761
