SATA Disk selection

Choosing disks is now a major problem with recent restraining of features for RAID (like on all recent WD firmwares for "desktop-class" disks). Interresting info:

Benchmarks:

Disks NOT-FOR-RAID

Name

Models

Size

Cache (MB)

Sector Size

Class

SDTR (Mbps)

Power (stdb/op) (W)

Noise (stdb/op) (dB)

Green?

Price (€)

Notes

WD Caviar Green

WD20EARS

2TB

64

4kB

desktop

110

4/6

24/29

Y

110

WD Caviar Green

WD20EADS

2TB

32

512B

desktop

110

4/6

24/29

Y

110

Disks for RAID

Name

Models

Size

Cache (MB)

Sector Size

Class

SDTR (Mbps)

Power (stdb/op) (W)

Noise (stdb/op) (dB)

RAID Cert

Green?

Price (€)

Notes

WD RE4

WD2003FYYS

2TB

64

512B

enterprise

138

8/11

29/34

Y

N

265

WD RE4-GP

WD2002FYPS

2TB

64

512B

enterprise

110

4/7

25/29

Y

Y

240

Hitachi Ultrastar A7K2000

HUA722020ALA330 HUA722010CLA330 HUA722050CLA330

2TB

32

512B

enterprise

134

6/11

29

Y

N

315

Hitachi Deskstar 7K2000

HDS722020ALA330

2TB

32

512B

desktop

?

8/?

29

N

N

120

seems to be confirmed to be RAID-compatible, here too

Seagate Constellation ES

ST32000644NS

2TB

64

512B

enterprise

140

6/9

27/33

Y

N

290

Seagate Barracuda XT

ST32000641AS

2TB

64

512B

desktop

138

6/9

28/32

Y

N

230

Seagate Barracuda LP

ST32000542AS

2TB

32

512B

desktop

95 (5900 RPM)

5/7

25/26

N

Y

110

Seagate Barracuda 7200.11

ST31500341AS

1.5TB

32

512B

desktop

135

5/9

26/32

Y

Y

possible firmware update needed

Seagate Barracuda 7200.11

ST31000333AS

1TB

32

512B

desktop

120

5/9

25/31

Y

Y

possible firmware update needed

Legend:

Issues

New 4k sector size

Readings:

What to expect on GNU/Linux:

Tools

Disks (last edited 2010-08-03 18:45:22 by TheDuck)