UNIX Settings
Configuring for the IBM AIX Environment
33
Configuring for the IBM AIX Environment
AIX Versions 3.2 and Later
The DAT24 tape drive can be configured to work with AIX versions 3.2 and later by using the SMIT
Other SCSI Tape Drive
option. Record the SCSI ID of the tape drive before installing it.
To configure AIX using the SMIT utility, use the following procedure:
1.
To enter SMIT at the
Tape Drive
menu, type
smit tape
.
2.
Select
Add a tape Drive
.
3.
Using the
Other SCSI Tape Drive
option, select the type of tape drive you will be adding.
4.
Select the
Parent SCSI Adapter
from the available list
5.
When the
Add a Tape Drive Entry Fields
appear, change some of the standard options
to maximize drive performance and functionality:
•
Set the
Connection Address with the Drives Target and Lun (always use
Lun 0)
. In the list, the Target is the first number and the Lun is the second. For example,
if the drive is ID 5, choose 5,0.
•
Set the
Fixed Blocksize
to 1024.
•
Set
Density 1
to 140.
•
Set the
Maximum delay for the Read/Write command
to 900.
6.
Press the Return key to install the drive in the system database and create the devices.
7.
Exit SMIT
AIX Device Drivers and Switching Data Compression
After you use SMIT to install the tape drive, device files are created for accessing the tape drive. Typ-
ical examples are:
/dev/rmt0 /dev/rmt0.1 /dev/rmt0. /dev/rmt0.3
/dev/rmt0.4 /dev/rmt0.5 /dev/rmt/0.6 /dev/rmt/0.7
With the configuration information provided here, devices rmt0, rmt0.1, rmt0.2, and rmt0.3 cause
the drive to write in compressed mode. Using devices rmt0.4, rmt0.5, rmt0.6, and rmt0.7 causes the
drive to write with compression disabled.
