User`s guide

Chapter 5. Implementing the Vicom Fibre Channel SLIC Router 363
Installing additional Routers
With the existing Router and storage system powered on:
1. The node map on the new Router must be cleared first.
2. Connect the Router to the existing system with the power off.
3. Set SW2 to mode 3 and set SW1 to an unique Fibre Channel target ID.
4. Power on the new Router.
5. When the Status LED on the new Router is on (solid lit), the install is
complete.
When the new Router is powered on, communication between the two Routers
will occur to query and update the new Router. The new Router will be added as
a subordinate so that the first Router will maintain its master status.
Any configuration changes to the storage system is always done on the master.
As this is done, the changes are also communicated to the subordinate Routers
so that all systems in the loop are aware of what is happening.
Using SLIC Manager on additional Routers
Since the master Router does all the work, it is not necessary to use SLIC
Manager to view the new Router. However, depending on how the new Router is
used this may become a requirement. The same daemon used to connect to the
first Router can be used to connect to several Routers.
The configuration file is edited again and the process to name and create a SLIC
zone on this new Router can be added within the same file. The SLIC Manager
software can now be used to communicate to the new Router.
The SLIC Manager can only communicate to a single Router at a time. Multiple
SLIC Manager sessions can be started to communicate to each Router.
Master failover
If at some time the Router that is designated as the master within the SLIC
storage system fails, the master designation will failover to next nearest Router.
This is accomplished within the communications between the Routers and it is
done automatically.
When the new Router accepts becoming master, it will maintain the master role if
even the failed Router is replaced and rejoins the storage system. The master
role can be changed back to the original Router, or to another Router if desired,
using the SLIC Manager software.
There is no capability to select a specific “failover” Router.