HDD IBM DNES-318350 18.2GB, 7200 rpm, Ultra2 Wide SCSI 68-pin LVD/SE, p/n: 25L1900, OEM (жесткий диск)

Specifications

DNES 318350/ 309170

DNES 318350/ 309170

DNEF 318350/ 309170

Interface

Ultra SCSI
Fast, Fast & Wide

Ultra2 SCSI
Fast & Wide, SCA-2

FCAL

Formatted capacity (512 bytes)

18.2/9.1 GB

Number of disks

5/3

Number of heads

10/5

Areal density (maximum)

3.03 Gbits/sq. in.

Recording density (maximum)

220 KBPI

Recording zones

11

Track density

13,700 TPI

Sector size

512 bytes

Channel

PRML

Encoding method

RLL (16/17)

Head type

Giant magnetoresistive (GMR)

Performance

Data buffer

2MB¹

Rotational speed

7200

Latency (average)

4.17 ms

Media transfer rate

159 to 244 Mbits/sec

Interface transfer rate
(SCSI max)

40 MB/sec²

80 MB/sec³

200 MB/sec⁴

Sustained data rate

12.7 to 20.2 MB/sec

Seek time (typical read)

Average

7.0 ms

Track-to-track

0.8 ms

Full track

13.0 ms

Reliability

Nonrecoverable read errors

< 1 in 10E13 bits read

S.M.A.R.T., Drive-TIP

Yes

Power

Startup current (max) in Amps

0.75 (5V), 2.00 (12V)

0.75 (5V), 2.00 (12V)

1.35 (5V), 2.00 (12V)

Idle (average)

6.9/5.3 Watts

6.9/5.3 Watts

9.9/8.3 Watts

Power consumption efficiency index

0.0004/0.0006 Watts/MB

0.0004/0.0006 Watts/MB

0.0006/0.0009 Watts/MB

Physical dimensions

Height

25.4 mm

Width

101.6 mm

Depth

146.0 mm

Weight

630 g

Environmental characteristics

Operating

Nonoperating

Temperature

5° to 55° C

-40° to 65° C

Relative humidity (noncondensing)

8% to 90%

5% to 95%

Shock (half-sine wave)

10 G (11 ms), 65 G (2 ms)

75 G (11 ms), 175G (2 ms)

Vibration (random)

0.67 G (5 to 500 Hz)⁵
0.56 G (5 to 500 Hz)⁶

1.04 G (2 to 200 Hz)