HP (Hewlett-Packard) Ultrium Drive Manuale Utente

Performance specification

26

Timings

Capacity full backup times

The following table shows approximate backup times for the available tape cartridges:

Load/unload times

The load and unload times are as follows:

* The unload time for WORM cartridges is greater, typically 22s

Access times (time to data)

Other times

Cartridge

Time

800 GB Ultrium 3

1 hr 30 min at a transfer rate >70 MB/s

400 GB Ultrium 2

1 hr 55 min

200 GB Ultrium 1

1 hr 55 min

SCSI

 FC

Typical load time to BOT, ready to read or write

<19s*

<19s*

Unload time, excluding rewind

<19s

<19s

Automation eject (tape unthreaded)

<1s

<1s

Time

Average access time from BOT

52s

46s

46s

Maximum access time from BOT

104s

92s

92s

Parameter

Time

Mean reposition time

2.5s

Turn-around time at end of wrap

1.5s max.

Time to rewind EOT–BOT at 7.0 m/s

98s (U3), 88s (U1/2)

Time to rewind MOT—BOT at 7.0 m/s

49s (U3), 44s (U1/2)

Cleaning time with a cleaning cartridge

<180s