The installation is now complete.
Optional Attribute Settings
The following information provides optional DLTtape attribute settings. Use the following steps to access and/or
modify those attributes of interest.
Under the Devices, Tape Drive selection in smit, select Select
Change/Showcharacteristics of a tape drive
. The system displays a table of the defined tape
drives.
1.
Select the DLTtape device by its logical address and location. The system will display the attributes assigned to
the DLTtape tape drive. The DLTtape attributes may be changed from the table below. Recommended settings
are in bold.
BLOCK size (0 = variable length): 0
●
BLOCK SIZE for variable length support: 0●
Use DEVICE BUFFERS during writes: yes●
The following shows density settings for attached DLTtape drives along with a description of the density
values.
●
2.
All DLT2000
series units
DENSITY setting # 1: 128 80h is the vendor-unique density code for 10 GB, 62500 bpi,
uncompressed mode
DENSITY setting # 2: 129 81h is the vendor-unique density code for 20 GB, 62500 bpi,
compressed mode
All DLT4000
series units
DENSITY setting # 1: 130 82h is the vendor-unique density code for 20 GB, 81633 bpi,
uncompressed mode
DENSITY setting # 2: 131 83h is the vendor-unique density code for 40 GB, 81633 bpi,
compressed mode
DLT7000 DENSITY setting # 1: 132 84h is the vendor-unique density code for 35 GB, 85937 bpi,
uncompressed mode
DENSITY setting # 2: 133 85h is the vendor-unique density code for 70 GB, 85937 bpi,
compressed mode
DLT8000 DENSITY setting # 1: 136 88h is the vendor-unique density code for 40 GB, 98250 bpi,
uncompressed mode
DENSITY setting # 2: 137 89h is the vendor-unique density code for 80 GB, 98250 bpi,
compressed mode
NOTE: The recommended DLTtape device density settings may cause problems with tape drive
access when using third party applications. In these cases it is suggested that the density values be
set to zero (0).
Special Device Files Available
Special device files, shown below, are located in the /dev directory can be used to control specific options associated
with an operation to tape. These options include whether or not to retension the tape prior to starting an operation,
whether or not to rewind the tape after completing an operation, and selecting the appropriate density setting for the
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