Speed MatchingTo improve system performance, the Ultrium 3, Ultrium 4, and Ultrium 5 TapeDrives use a technique called speed matching to dynamically adjust its native(uncompressed) data rate to the slower data rate of the attached server.Channel CalibrationThe channel calibration feature of the Ultrium 3, Ultrium 4, and Ultrium 5 TapeDrives customizes each read/write data channel for optimum performance. Thecustomization enables compensation for variations in the recording channeltransfer function, media characteristics, and read/write head characteristics.Power ManagementThe Ultrium 3, Ultrium 4, and Ultrium 5 Tape Drive's power management functioncontrols the drive's electronics so that part of the electronics completely turn OFFwhen circuit functions are not needed for the drive's operation.MediaThe library uses Ultrium Tape Cartridges that provide up to 1500 GB nativecapacity (up to 3000 GB with 2:1 hardware data compression) for LTO 5 tapedrives, up to 800 GB native capacity (up to 1600 GB with 2:1 hardware datacompression) for LTO-4 tape drives, and up to 400 GB native capacity (up to 800GB with 2:1 hardware data compression) for LTO-3 tape drives.Ultrium 5 tape drives can read and write LTO Ultrium 5 Data Cartridges. Ultrium5 tape drives can read and write LTO Ultrium 4 Data Cartridges at originalUltrium 4 capacities, and can also read LTO Ultrium 3 Data Cartridges withimproved data rates. Ultrium 4 tape drives can read and write LTO Ultrium 4 DataCartridges. Ultrium 4 tape drives can read and write LTO Ultrium 3 DataCartridges at original Ultrium 3 capacities, and can also read LTO Ultrium 2 DataCartridges with improved data rates. Ultrium 3 Tape Drives can read and writeLTO Ultrium 3 Data Cartridges. Ultrium 3 Tape Drives can read and write LTOUltrium 2 Data Cartridges at original Ultrium 2 capacities, and can also read LTOUltrium 1 Data Cartridges with improved data rates of up to 20 MB/second nativedata transfer rate (40 MB/second with 2:1 compression). Ultrium 4 tape drivescannot read Ultrium 1 tapes. Ultrium 5 tape drives cannot read Ultrium 1 orUltrium 2 tapes.Supported cartridges include:v LTO Ultrium 1500 GB Data Cartridge (Ultrium 5)v LTO Ultrium 800 GB Data Cartridge (Ultrium 4)v LTO Ultrium 400 GB Data Cartridge (Ultrium 3)v Write-Once-Read-Many WORM Data Cartridge (Ultrium 3, Ultrium 4, Ultrium5)v LTO Ultrium 200 GB Data Cartridge (Ultrium 2)v 100 GB Data Cartridge (Ultrium 1; read only)v LTO Ultrium Cleaning CartridgeImportant: Cartridges placed in the library must be labeled with the correct barcode labels. For additional information, see Chapter 6, “Using UltriumMedia,” on page 6-1.1-10 Dell PowerVault TL2000 Tape Library and TL4000 Tape Library User's Guide
