Perle Systems RIO 5500036-17 - Manual (Page 195)

RIO Remote I/O System User Guide
Installing a dual host fail-safe link (UNIX only)
Page 195
Chapter 2 Installing hardware and software
Installing a dual host failsafe link under SCO OpenServer
Installing for normal operation
To install a dual host fail-safe system for normal operation under SCO OpenServer proceed
as follows;
1. Install the host cards and RIO drivers on both systems. See Installing a Universal 3.3/
5V PCI host card on page 156 , Installing an ISA host card on page 158 and Installing
device drivers and utilities on page 54 .
2. Install the RTAs you want onto master system only (no link connection to slave). See
Installing Remote Terminal Adaptors (RTAs) on page 161 .
3. On the master system, run the config.rio utility to add RTAs and port devices. See
Configuring ports with config.rio on page 64 , and Adding an RTA to the system on
page 65 .
4. Repeat step 3. for the slave system using an identical configuration to the master
system.
5. For the slave system, from within the conifg.rio menu, click on Boot mode: > Boot no
RTAs .
6. On the slave system, run the config.rio utility to create port devices.
7. Connect the RTAs to the slave system. See Installing Remote Terminal Adaptors
(RTAs) on page 161 .
You can now use your dual host fail-safe system, however the RTAs will only be booted or
accessible from the
master system.
Note
In the event of master system failure, you will need to configure the slave system to take
over using the procedure given in Transferring control to the slave system on
page 196 .