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I don't do Windows if I can help it, but with Linux you save big time using RAM to cache files and SATA to serve them. I am planning to put three of these folks in my /home and http server in my system. I can use RAID 1 to permit serving three files at once, and RAID 1 over network ,drbd, to use two servers in a HA cluster and the price of each drive is $CDN 163. I do not need speed as the /home files are fairly low write rate and random reads. With 2gb to cache stuff, the frequently needed stuff will come from RAM. I will have 150 users on /home and about 60 on http. My old system had about 30 users and the drive light rarely flashed. My servers will work them harder than a home PC, but not much because the http will be mostly to the same region of disc (Moodle) and a user might save a few times in an hour. With MTBF of 600000h, I can afford a few in a RAID array.<BR>
<A HREF="http://www.samsung.com/Products/HardDiskDrive/SpinPointTSeries/HardDiskDrive_SpinPointTSeries_HD401LJ.asp?page=Specifications">http://www.samsung.com/</A> <BR>
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"SAMSUNG HD401LJ <BR>
SpinPoint T Series<BR>
T133 Series" <BR>
Specifications <BR>
<BR>
Drive Configuration Interface Serial ATA 3.0<BR>
Buffer DRAM Size+2 16 Mbytes<BR>
Bytes per Sector 512<BR>
Performance Specification Read Seek Time(typical) <BR>
Track to Track 0.8 ms<BR>
Average 8.9 ms<BR>
Full Stroke 18 ms<BR>
Average Latency 4.17 ms<BR>
Rotational Speed 7,200 rpm<BR>
Data Transfer Rate <BR>
Media to/from Buffer (max.) 400/1000 Mbits/sec<BR>
Buffer to/from Host(max.) 300 MB/sec<BR>
Drive Ready Time(typical) 10 sec<BR>
Reliability Specification Non-recoverable Read Error 1 sector in 1014 bits<BR>
MTBF 600,000 POH<<<<<<<<<<<<<<<<<<<<<<<<<<<!!!<BR>
Start/Stop Cycles (Ambient) 50,000<BR>
Component Design Life 5 years<<<<<<<<<<<<<<<<BR>
Acoustics(Average Sound Power) Idle 2.7 Bel<BR>
Random Read/Write 2.9 Bel<BR>
Environmental Specification Temperature <BR>
Operating 0 ~ 60°C<BR>
Non-operating -40 ~70°C<BR>
Thermal Gradient (max.) 20°C/hr<BR>
Humidity (non-condensing) <BR>
Operating 5 ~ 90 %<BR>
Non-operating 5 ~ 95 %<BR>
Linear Shock (1/2 sine pulse) <BR>
Operating, 2ms 63 G<BR>
Non-operating, 1ms 300 G<BR>
Vibration (swept sine, 0.5 octave per minute) <BR>
Operating <BR>
5-300-5 Hz 1.0 Go-p<BR>
Non-operating <BR>
5-500-5 Hz 2.0 G0-p<BR>
Altitude (relative to sea level) <BR>
Operating -1,000 to 10,000 feet<BR>
Non-operating -1,000 to 40,000 feet<BR>
Power Requirements Voltage +5V±5%,+12V±10%<BR>
Spin Up Current (max.) 800/2000 mA<BR>
Read/Write On-Track(typ.) 10.0 W<BR>
Seek+5(typ.) 10.5 W<BR>
Idle (typ.) 8.4 W<BR>
Standby(typ.) 1.3 (0.6 with DIPM) W<BR>
Sleep(typ.) 1.3 (0.6 with DIPM) W<BR>
Physical Dimension Height 1 in<BR>
Width 4 in<BR>
Depth 5.75 in<BR>
Weight 1.44 lb<BR>
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A problem is an opportunity.
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