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316196601 • Revision: A Chapter 1 Introduction 3
Specifications
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.) 8.25 cm (3.25 in.) 8.25 cm (3.25 in.)
Width 14.6 cm (5.75 in.) 14.6 cm (5.75 in.) 14.6 cm (5.75 in.)
Length (depth) 21.38 cm (8.4 in.) 21.38 cm (8.4 in.) 21.38 cm (8.4 in.)
Weight 2.1 kg (4.6 lb) 2.24 kg (4.94 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 128 MB
Number of tracks 512 704 896
Load to ready * 15–24 sec 19 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 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 250,000 hrs 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.