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Scorpion 240 Autoloader Installation Manual A-43
Configuration for the DEC UNIX environment
Dip switch settings
Before using the Scorpion 240 in a DEC UNIX environment,
set the operating-system dip switches as shown below:
Switch 5 Switch 6 Switch 7 Switch 8
Setting
OFF ON ON ON
Digital UNIX Version 4.0 and later
With Version 4.0 of their UNIX operating system, DEC
introduced a new method of configuring the CAM SCSI driver.
Modify the file
/etc/ddr.dbase
as follows:
1. Look through the file and locate the database entry for the
DEC TLZ07 DAT drive
2. Copy this entry and paste it later in the file, taking care to
maintain the file syntax.
3. Modify this new entry as shown below.
SCSIDEVICE
#
Type = tape
Name = "SEAGATE" "DAT"
#
PARAMETERS:
TypeSubClass = rdat
TagQueueDepth = 0
MaxTransferSize = 0x0ffffff # (16MB - 1)
ReadyTimeSeconds = 60 # seconds
DENSITY:
#
DensityNumber = 0,3,4,5,6,7
DensityCode = default
CompressionCode = 0x0
Buffered = 0x1
DENSITY:
#
DensityNumber = 1,2
DensityCode = default
CompressionCode = 0x1
Buffered = 0x1
4. Save the database file.