QuickSpecs
HP StorageWorks DAT 72 Tape Drive
DA-11597 World Wide — Version 3 — June 17, 2003 14
Technical Specifications
Native 36 GB
Capacity
Compressed 72 GB, assuming 2:1 ratio (data dependant)
Drive Type
4mm cartridge tape, DAT 72 format.
Native (maximum) 10.8 GB/hour
Transfer Rates
2:1 Compression (maximum) 21.6 GB/hour
Interface
Wide Ultra3 SCSI (LVD)
Internal buffer
16 Mbytes
Recording Method Helical Scan, 4mm
Tape Format
Recording Format ANSI/ISO/ECMA, DDS-3, DDS-4, DAT 72 (5
th
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
Operating
41° to 104° F (5° to 40°C)
Temperature Range
Storage
-40° to 158° F (-40° to 70°C)
Relative Humidity (non-
condensing)
Operating 20% to 80%
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
drive)
100 to 240VAC 0.5A Auto-ranging 50-60Hz (on external units), +5VDC 0.5A, +12VDC 0.55A (typical)
