Configuring and Operating the DLT4000 Basic Tape Drive
3-8 DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem
3.3 Selecting Density
Section 3.3 describes the drive's density select features.
_________________________ CAUTION _________________________
If a prerecorded tape is used and write from beginning of tape (BOT), all
prerecorded data is lost. This includes density changes, since they only
occur when writing from BOT.
___________________________________________________________
Ways of Selecting Density
Using DLTtape IV the density defaults to 20.0 GB native. The only selection is for
compression on or off.
Using DLTtape III the density defaults to 10.0 GB native. The only selection for this
cartridge is 2.6, 6.0, 10.0 GB compression off or 20.0 GB compression on.
Using DLTtape IIIxt the density defaults to 15.0 GB native or 30.0 GB compression.
Using DLTtape IV the user can select density by any of the following operations:
1.
On all read operations and all write append operations, the recorded density is the
density to be used.
2.
On a Write from BOT, the tape density may be changed by:
•
The Density Select button. Using the Density Select button always
overrides a host selection.
•
A programmable Host Selection via your operating system. (The
Density Override indicator is off, indicating automatic or host density
selection.)
••
Native Default density 20.0 GB and Compress (assuming the Density
Select button or the host selection was not used.)
How to Select Density
To select density with the DLT4000 drive:
1.
Load the tape in the drive. The yellow Tape in Use indicator blinks while the tape
loads and calibrates.
2.
After calibration completes, Tape in Use remains lit.
3.
The indicator shows the tape's prerecorded density, such as 2.6 GB or 6.0. GB
Summary of Contents for DLT 4700
Page 1: ...DLTTM 4000 DLTTM 4500 DLTTM 4700 Cartridge Tape Subsystem Product Manual...
Page 2: ......
Page 160: ...Firmware Update From Tape 7 18 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...
Page 215: ...DLT4000 SCSI Interface DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem 8 55...
Page 304: ...DLT4000 SCSI Interface 8 144 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...
Page 342: ...Sense Key Information C 6 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...
Page 359: ...Index DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem 7...
Page 360: ...Index 8 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...