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Toshiba HDD1744 Manuale Utente

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SPECIFICATIONS –MK4008GAH (HDD1744) HARD DISK DRIVE 
General 
Model MK4008GAH 
(HDD1744) 
Interface ATA-6 
Functionality 
 
Internal Drive Characteristics 
Formatted Capacity 
40.0GB*
Rotational Speed 
4,200rpm 
Avg. Rotational Latency 
7.14/ms 
Spin-up Time 
3.sec (typical) 
Buffer 2MB 
Seek Time  
 Average 
 Maximum 
 
15 
26 
Internal Transfer Rate 
132.6 ~ 230.9 Mbits/sec (max) 
Host Transfer Rate  
 
 Ultra 
DMA 
mode 
 PIO 
Mode 
100Mbytes/sec  
16.6Mbytes/sec 
Interleave Factor 
1:1 
*Toshiba defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB) as 1,000,000,000 bytes. 
Number of Disks 
2 
Number of Data Heads 
4 
Track Density (TPI) 
4,331 (110k) 
Logical Cylinders 
16,383 
Logical Heads 
16 
Logical Sectors/track 
63 
Bytes per Sector 
512 
Logical Blocks (LBA) 
78,126,048 
Reliability 
Preventative maintenance 
None 
Non-recoverable read errors 
1 error per 10
13
 bits read 
Electrical  
Voltage 3.3V 
5% 
Power Consumption 
Start 1.8W 
typ 
Seek 
1.1W  typ 
Read/Write 
1.0W  typ 
Sleep 
0.07W  typ 
Energy Consumption Efficiency 0.0075W/GB 
avg 
 
Shock 
 Operating 
4,900m/s
2
 (500G)(2msec) 
 Non-Operating 
14,700m/s
2
 (1500G)(1msec)