Seagate 240 DDS-4 manual Configuration for the DEC Unix environment, Dip switch settings, Setting

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.