Tape Densities

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Densities supported for tapes by the INITIALIZE/DENSITY and MOUNT (Utility)/DENSITY commands are listed in the table below:

Keyword Meaning
DEFAULT Default density
800 NRZI 800 bits per inch (BPI)
1600 PE 1600 BPI
6250 GRC 6250 BPI
3480 IBM 3480 HPC 39872 BPI
3490E IBM 3480 compressed
833 DLT TK50: 833 BPI
TK50 DLT TK50: 833 BPI
TK70 DLT TK70: 1250 BPI
6250 RV80 6250 BPI EQUIVALENT
TK85 DLT Tx85: 10625 BPI-Cmpt III - Alpha/Integrity servers only
TK86 DLT Tx86: 10626 BPI-Cmpt III - Alpha/Integrity servers only
TK87 DLT Tx87: 62500 BPI-Cmpt III - Alpha/Integrity servers only
TK88 DLT Tx88: (Quantum 4000)-Cmpt IV - Alpha/Integrity servers only
TK89 DLT Tx89: (Quantum 7000)-Cmpt IV - Alpha/Integrity servers only
QIC All QIC drives are drive-settable only - Alpha/Integrity servers only
TK85 DLT Tx85: 10625 BPI-Cmpt III - Alpha/Integrity servers only
TK86 DLT Tx86: 10626 BPI-Cmpt III - Alpha/Integrity servers only
TK87 DLT Tx87: 62500 BPI-Cmpt III - Alpha/Integrity servers only
TK88 DLT Tx88: (Quantum 4000)-Cmpt IV - Alpha/Integrity servers only
TK89 DLT Tx89: (Quantum 7000)-Cmpt IV - Alpha/Integrity servers only
QIC All QIC drives are drive-settable only - Alpha/Integrity servers only
8200 Exa-Byte 8200 - Alpha/Integrity servers only
8500 Exa-Byte 8500 - Alpha/Integrity servers only
DDS1 Digital Data Storage 1-2G - Alpha/Integrity servers only
DDS2 Digital Data Storage 2-4G - Alpha/Integrity servers only
DDS3 Digital Data Storage 3-8-10G - Alpha/Integrity servers only
DDS4 Digital Data Storage 4 - Alpha/Integrity servers only
AIT1 Sony Advanced Intelligent Tape 1 - Alpha/Integrity servers only
AIT2 Sony Advanced Intelligent Tape 2 - Alpha/Integrity servers only
AIT3 Sony Advanced Intelligent Tape 3 - Alpha/Integrity servers only
AIT4 Sony Advanced Intelligent Tape 4 - Alpha/Integrity servers only
DLT8000 DLT 8000 - Alpha/Integrity servers only
8900 Exabyte 8900 - Alpha/Integrity servers only
SDLT SuperDLT1 - Alpha/Integrity servers only
SDLT320 SuperDLT320 - Alpha/Integrity servers only

See also

  • Tape
  • INITIALIZE
  • MOUNT