Configuring, Installing, and Operating the Tape Drive
Quantum DLT 8000 Tape System
2-35
2.5.3 Selecting Density
CAUTION
If the tape is not positioned at End of Data (EOD), a WRITE to the tape will deny
access to previously recorded data beyond the current tape position. To prevent
this, position the tape to EOD, then perform the WRITE. This condition is termed
an “appended WRITE.”
NOTES
1.
Default capacity of a DLTtape
TM
III cartridge is 10.0 GB, native or 20.0 GB
(compression ON).
2.
Default capacity of a DLTtape IIIXT cartridge is 15.0 GB, native (compression
OFF), or 30.0 GB (compression ON).
3.
Default capacity of a DLTtape IV cartridge is 40.0 GB, native (compression
OFF), or 80 GB, compressed. A capacity of 35.0 GB native (compression OFF,
or 70 GB, compressed OR 20.0 GB native (compression OFF), or 40 GB,
compressed, is user-selectable.
Various storage capacities can be selected by specifying the
density
of the data to be
recorded on the tape media.
Using the DLTtape IV cartridge:
1.
On all READ and all WRITE APPEND operations, the data density that already
exists on the tape cartridge remains the density.
2.
When writing from BOT, tape density may be changed by:
•
Using the Density Select Button on the front panel of the tape system.
Using
the front panel’s Density Select Button always overrides density selection via
the host.
•
Using the operating system to issue a density designation. In this case, the
yellow Density Override indicator on the tape system’s front panel is
extinguished, indicating an automatic or host density selection.
Native default capacity for the DLTtape IV is 40.0 GB (80.0 GB, compressed), assuming
the Density Select Button was not used or that host selection of density via the
operating system was not invoked.
Summary of Contents for DLTtape DLT 8000
Page 1: ...DLTTM 8000 Tape System Product Manual Nov 10 2003 81 60118 06...
Page 5: ...USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT continued...
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Page 26: ...Table of Contents xxiv Quantum DLT 8000 Tape System...
Page 36: ...About This Manual Quantum DLT 8000 Tape System xxxii...
Page 54: ...General Description and Specifications 1 18 Quantum DLT 8000 Tape System...
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Page 376: ...Appendix A Definition of Vendor Unique Sense Data Information A 4 Quantum DLT 8000 Tape System...
Page 386: ...Appendix C Updating the Firmware C 6 Quantum DLT 8000 Tape System...
Page 396: ...Appendix E Visual Inspection Procedure for DLTtape Cartridges E 8 Quantum DLT 8000 Tape System...
Page 406: ...Appendix G DLT 7000 Emulation Feature G 8 Quantum DLT 8000 Tape System...
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