System Setup and Configuration
3.8 Firmware Commands and Utilities Used in System Configuration
Note
Of the devices listed in the CONFIG display, not all are supported
on the VAX 4000 Model 500A systems. See Section 3.2 for supported
options.
The LPV11–SA has two sets of CSR address and interrupt vectors. To
determine the correct values for an LPV11–SA, enter LPV11,2 at the
DEVICE
prompt for one LPV11–SA or enter LPV11,4 for two LPV11–SA
modules.
3. See the
Microsystems Options
manual for switch and CSR and interrupt
vector jumper settings for supported options.
Note
The CSR address for KFQSA storage adapter is programmed using
firmware commands. Refer to the Appendix H for using the SET/HOST
/UQSSP/MAINT command to access the Diagnostic Utility Program
(DUP) driver utility to configure the CSRs for the KFQSA module.
3.8.3 Setting and Examining Parameters for DSSI Devices
Two types of DSSI storage adapters are available for VAX 4000 systems: an
embedded DSSI adapter, which is part of the CPU, and the KFQSA adapter.
The KA681/KA691/KA692/KA694 CPU has two embedded DSSI adapters: Bus
0 and Bus 1. The optional KFDDB DSSI daughter card provides two additional
embedded DSSI adapters, Bus 2 and Bus 3.
Each adapter provides a separate DSSI bus that can support up to eight nodes,
where the adapter and each DSSI storage devices count as one node, hence
each DSSI adapter can support up to seven DSSI storage devices (six DSSI
storage devices for a two-system DSSI VAXcluster; five DSSI storage devices
for a three-system DSSI VAXcluster configuration). The adapters make a
connection between the CPU and the requested device on their respective
DSSI bus. Each DSSI device has its own controller and server that contain the
intelligence and logic necessary to control data transfers over the DSSI bus.
3–28 System Setup and Configuration
