Programming Parameters for DSSI Devices
VAX 4000 Model 108 User Information E-5
Figure E-1 VMS Operating System Requires Unique Unit Numbers for DSSI
__________________________NOTE ____________________________
You should configure your system to have unique unit numbers even if you have
a standalone system using an allocation class of zero. That practice will avoid
problems with duplicate device names if you later decide to form a cluster.
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Examining and Setting DSSI Device Parameters\Setting_params
The following instructions describe how to change DSSI parameters, using the DUP driver
utility. In the example procedures, the allocation class will be set to 2.
1. Enter the console mode.
The procedure for programming parameters for DSSI devices from console mode
requires that you issue commands to those devices at the console prompt
>>>
. You
may enter the commands in either uppercase or lowercase letters. Unless otherwise
instructed, enter
each command, then press Return
Enter console mode as follows:
Set the Break Enable/Disable switch on the system console module to the enable
position up, position (|)
Set the Power switch for each unit (both hosts for a dual-host system, and any
expanders for expanded systems) to the on position (|).
Wait for the system to display the console prompt
>>>
.
2. To display the DSSI devices on embedded DSSI adapters, enter
SHOW DSSI
at the
console prompt.
The firmware displays two lines of information for each device. For embedded DSSI,
the firmware displays the following.
The first line contains the bus number, node number, and node name.
The second line contains the device name and unit number followed by the device
type in parentheses.
For embedded DSSI, the device name consists of the letters DIAu or DIBu (MIAu or
