Performance specification26
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 800 GB Ultrium 3: 52s
400 GB Ultrium 2: 46s
200 GB Ultrium 1: 46s
Maximum access time from BOT 800 GB Ultrium 1: 104s
400 GB Ultrium 2: 92s
200 GB Ultrium 1: 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
