HP DAT 72 manual Capacity, Drive Type, Transfer Rates, Interface, Internal buffer, Tape Format

QuickSpecs

HP StorageWorks DAT 72 Tape Drive

Technical Specifications

Capacity	Native	36 GB
	Compressed	72 GB, assuming 2:1 ratio (data dependant)
Drive Type	4mm cartridge tape, DAT 72 format.
Transfer Rates	Native (maximum)	10.8 GB/hour
	2:1 Compression (maximum)	21.6 GB/hour
Interface	Wide Ultra3 SCSI (LVD)
Internal buffer	16 Mbytes
Tape Format	Recording Method	Helical Scan, 4mm
	Recording Format	ANSI/ISO/ECMA, DDS-3, DDS-4, DAT 72 (5th Generation DDS)
		Media recognition System Cartridges
Media	DAT 72 media – 170m, 4mm tape, Metal Particle (MP++++		) formulation
Standards Compliance	cCSAus; TÜV; FCC; CE; BSMI; RRL; C-Tick(NOM, VCCI & GOSH for 'e' variant)
Data Compression	Data-Compression-Lempel-Ziv (DCLZ)
Error Detection/Correction	Reed Solomon
Sustained Transfer Rate	3 MB/s (native)
	6 MB/s (compressed, 2:1)
	(Typically, users will be able to compress data at a 2 to 1 ratio; however, this depends on the data itself.)
Burst Transfer Rate	6 MB/s maximum asynchronous, 40 MB/s maximum synchronous
Search Speed	50 seconds average file access time using a DDS-4 data cartridge
Maximum Number of Drives	Max 15 drives per Ultra3 SCSI controller however performance will be impaired. In order to achieve performance
	expectations it is strongly recommended that no more than one drive is connected to the SCSI bus.
Reliability Features	MTBF	400,000 hours at 12% Duty Cycle
Temperature Range	Operating	41° to 104°	F (5° to 40° C)
	Storage	-40°to 158°	F (-40°to 70° C)
Relative Humidity (non-	Operating	20% to 80%
condensing)
Power Requirement (Internal drive) + 5V DC, 0.5A; + 12V DC, 0.55A typical; + 5V DC, 0.9A +			12V DC, 1.5A peak (<1 sec)
Power Requirement (External	100 to 240VAC 0.5A Auto-ranging 50-60Hz (on external units), +5VDC 0.5A, +12VDC 0.55A (typical)
drive)

DA-11597 World Wide — Version 3 — June 17, 2003 14