Configuration For The Dec Unix Environment - Seagate Scorpion 240 DDS-4 Installation Manual

Scorpion 240 Autoloader Installation Manual

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:
Setting
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
2. Copy this entry and paste it later in the file, taking care to
3. Modify this new entry as shown below.
SCSIDEVICE
#
Type = tape
Name = "SEAGATE" "DAT"
#
PARAMETERS:
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.
Switch 5
OFF
DEC TLZ07 DAT drive
maintain the file syntax.
TypeSubClass
TagQueueDepth
MaxTransferSize
ReadyTimeSeconds
Switch 6 Switch 7
ON ON
= rdat
= 0
= 0x0ffffff
= 60
A-43
Switch 8
ON
# (16MB - 1)
# seconds