Seagate STU62001LW-S Installation Manual page 45

Viper 200 Installation Manual
Save the file. Then run the following command:
ddr_config will take the default input file, ddr.dbase, and build
a new device database. This is effective immediately, and
there is no need to rebuild the kernel.
Note: ddr.dbase is a Unix shell script and is not written in C.
To enable the tape driver to turn on data compression when
writing data to tape use the 'c' option.
For commands that use density and tape size settings the
tape density is 124,000 bpi and the tape length is 1800 feet.
For commands that use a blocking factor we recommend a
blocking factor of 64 as a minimum, preferably 128.
MaxTransferSize
ReadyTimeSeconds
CMD_PreventAllow
CMD_ExtReserveRelease = supported
BlockSize
PwrMgmt_capable
DENSITY:
#
DensityNumber = 0,2,3,4,5,6,7
DensityCode = default
CompressionCode = 0x0
Buffered = 0x1
DENSITY:
#
DensityNumber = 1
DensityCode = default
CompressionCode = 0x1
Buffered = 0x1
ddr_config -c
This means # is used to signify a comment, not /* and
*/ or //, as used in C. Make sure any comments
included in this file are preceded with the # character.
= 0x0ffffff # (16MB - 1)
= 180 # seconds
= supported
= 0
= 0
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