- ページ 10
ストレージ 3Ware TwinStorのPDF インフォメーションシートをオンラインで閲覧またはダウンロードできます。3Ware TwinStor 10 ページ。 A compelling case for multiple drives in pcs, servers and workstations
ページを印刷するCapacity
Street Price
GB/$1000
Sequential Read
Random 2k Read
Sequential Write
WinBench HE Disk Test
Years to data loss per TB
Appendix B. Test conditions
System Configuration
500MHz - Single Processor Pentium III - 128Meg SDRAM
Windows NT 4.0 - w/Service Pack 5
ATI Rage Pro Turbo w/ 8Meg- 1024x768, 64K Colors
NEC 40X IDE CD-ROM
ATA
SCSI
Prices from www.dirtcheapdrives.com 8/14/99
WinBench 99 tests on 2 GB Fat partition
Iometer tests on Full Volume NTFS
Reliability Assumptions
7,200 RPM drives (Quantum and Seagate): 500K Hour MTBF per drive
10,000 RPM drives (Cheetah): 1M hour MTBF
Three-day repair time
Barracuda(RAID 5)
27.3
$1,500
18.2
52.7
317
6.8
7,080
587
Quantum Fireball Plus KA 9.1 G and 18.2 G, 7200 RPM
3ware Disk Switch 4 Controller
Seagate ST39175LW Hard Drive 9.1G, 7200 RPM
Seagate Cheetah Hard Drive 9.1G, 10,000 RPM
Adaptec AAA-131U2 PCI RAID Controller
KA(2 pairs of Twins)
GB
36.4
($375*4)
$900
40.4
MB/s
47.8
I/Os /sec
379
MB/s
21.9
19,000
1,761
GB
($225*4)
MB/s
I/Os /sec
MB/s