Model DJSA-220/210/205
Configuration
Interface ATA/66
Capacity ¹(GB) 20.0/10.0/5.0
Sector size (bytes) 512
Recording zones 16
User cylinders 22,784
Data heads 4/2/1
Disks 2/1/1
Max. areal density (Gbits/sq. inch) 17.1
Max. recording density (KBPI) 451.1
Track density (KTPI) 38
Drive Fitness Test Enabled
Performance
Data buffer (KB) 2048²/512³512³
Rotational speed (RPM) 4200
Latency (average ms) 7.1
Media transfer rate
(Mbits/sec) 108.8 to 202.9
Interface transfer rate (MB/sec) 66.6 Ultra-DMA mode 4
16.6 PIO mode 4
Seek time (ms)
Average (typical) 12.0
Single track (typical) 2.5
Full stroke (typical) 23.0
Reliability
Error rate (nonrecoverable) < 1 per 1.0E13 bits transferred
Load/unload
cycles 300,000
Power
Voltage
Requirement (VDC) +5(+/-5%)
Dissipation (W)
Startup
(max peak) 4.7
Seek (typical) 2.3
Read (typical) 2.0
Write (typical) 2.1
Performance idle (typical) 1.85
Active idle (typical) 0.85
Low power idle (typical) 0.65
Standby (typical) 0.25
Sleep (typical) 0.1
Power consumption efficiency (watts/MB) 0.00003/0.00007/0.00013
Physical size
Height (mm) 9.5
Width (mm,nominal) 70.0
Depth (mm,nominal) 100.0
Weight (g) 99.0
Environmental characteristics
Operating Nonoperating
Ambient temperature 5 to 55° C -40 to 65° C
Relative humidity (noncondensing) 8% to 90% 5% to 95%
Maximum wet bulb (noncondensing) 29.4° C 40° C
Shock (half sine wave) 150 G/2 ms 800 G/1 ms
Vibration
Random (RMS) 0.67 G(5-500 Hz) 3.01 G (2.5-500 Hz)
Swept sine (RMS) 1 G 0-peak (5-500 Hz) 5 G 0-peak (10-500 Hz)
Warranty
Three years*
应该是2m cache..这个周末我也去换一个。
