Speed Matching

To improve system performance, the Ultrium 3 and Ultrium 4 Tape Drive uses a

technique called speed matching to dynamically adjust its native (uncompressed)
data rate to the slower data rate of the attached server.
Channel Calibration
The channel calibration feature of the Ultrium 3 and Ultrium 4 Tape Drive
customizes each read/write data channel for optimum performance. The
customization enables compensation for variations in the recording channel
transfer function, media characteristics, and read/write head characteristics.
a77ug008
Figure 1-7. Library drive sled without ESD springs (SCSI sled shown)
a77ug202
1
Figure 1-8. Library drive sled with ESD springs [1] (SAS sled shown)
1-10 Dell PowerVault TL2000 Tape Library and TL4000 Tap e Library User's Guide