Specifications – Sun Microsystems StorageTek HP LTO4 User Manual

Page 11

316196601 • Revision: A

Chapter 1 Introduction 3

Specifications

TABLE 1-1

provides a comparison of tape drive specifications.

TABLE 1-1

Tape Drive Specifications

LTO2

LTO3

LTO4

Physical Specifications

Height

8.25 cm (3.25 in.)

Width

14.6 cm (5.75 in.)

Length (depth)

21.38 cm (8.4 in.)

Weight

2.1 kg (4.6 lb)

2.24 kg (4.94 lb)

Performance Specifications

Capacity (native)

200 GB

400 GB

800 GB

Transfer rate (native)

30 MB/s

80 MB/s

120 MB/s

Streaming range (native)

13.7 to 35.6 MB/s

27 to 80 MB/s

40 to 120 MB/s

Data Buffer size

64 MB

128 MB

Number of tracks

512

704

896

Load to ready *

15–24 sec

19 sec

Access time-average (to first file)

64–75 sec

72 sec

62 sec

Tape speed (meters per second)

5.50 m/s

5.32 m/s

7.0 m/s

Tape read/write speed

6.20 m/s

5.32 m/s

6.20 m/s

Rewind time (maximum/average)

104/52 sec

98/49 sec

124 sec

Unload time

13–19 sec

19 sec

Cleaning time

58 to 152 sec

Interface Support (SCSI)

(Fibre Channel)

Ultra3 SCSI (LVD)

FC1

Ultra-320 (LVD)

FC2

Ultra-320 (LVD)

FC4

MTBF (100% duty cycle)

250,000 hrs

Media/Format Compatibility

Read

LTO1, LTO2

LTO 1, 2, 3

LTO 2, 3, 4

Write

LTO1, LTO2

LTO2, LTO3

LTO3, LTO4

Note:

HP drives support the LTO standard for backward compatibility, which is to write back

one generation and read back two generations.

Power

Consumption

38 W

35 W

30 W

Interface Codes:

Fibre Channel: FC1 = Fibre Channel 1Gb, FC2 = Fibre Channel 2Gb, FC4 = Fibre Channel 4Gb

Note: *

Encryption-capable and un-initialized WORM cartridges can take longer to load.