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A Tape Drive Specifications

This chapter provides the technical specifications for the HP SureStore T20 tape

drive and lists part numbers for compatible tape cartridges, SCSI cables, and

accessories.

Interface

SCSI-2

Backup Speed

Data transfer rate Sustained: 1,042 KB/second at 100 ips

Burst: 3 MB/second

Tape speed Read-write: 50, 75, 100 ips

Search/rewind: 90, 120 ips

Load time 30 seconds

Retension time 740-foot tape, 150 seconds

400-foot tape, 81 seconds

Tape Format

Format QIC-3220

Media HP 20GB/Travan TR-5 (QIC-3220)

Number of tracks 108

Bit density 106,400 bpi

Encoding method RLL1,7

Error Correction Level-10 Reed-Solomon

Reliability Specifications

Hard error rate: <1 in 10

bits read with Reed-Solomon ECC

Predicted mean time between failures (20% duty cycle):

Internal: 250,000 hours

External: 200,000 hours

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HP NetServer E 200 Schnellstart Anleitung Seite 51