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4.10 THE SERVERS TAB
The Servers tab shows a table of all servers within the iPATH network.
Click the SERVERS tab to view the page.
For installations that require greater redundancy, it is possible to have two or more iPATH servers running on the same subnet.
If used on multiple subnets it is possible to have two or more servers on each subnet. If the primary server fails then alternative
servers with the same database can take over until the primary unit recovers.
Each server entry will have one of five possible states within the Role column:
• Unconfigured The server is a factory fresh device or has performed a full factory reset. This does not yet have a proper role.
• Solo This is a server acting as a standalone iPATH server. If there is only going to be one iPATH server on the subnet, this is
the Role that should be used.
• Primary The server is configured as a fully functional iPATH from which a back-up server can be slaved.
• Backup If more than one server is on the same subnet this is a primary backup configuration. If there are three servers on the
same subnet you will have one primary and two backups.
• Satellite This is the role of a server on a different subnet to the primary. If you have multiple servers on the different subnet
these would all be called satellite servers. If you had a configuration with two servers on Vlan 1, two servers on Vlan 2 and 1
server on Vlan 3. iPATH would report 1 primary on Vlan 1, 1 Backup on Vlan 1, 2 satellites on Vlan 2 and 1 satellite on Vlan3.
Each server entry will also show one of six entries within the Status column:
• Active This server is functioning as an iPATH server and is administering Agility devices. Primary or Solo servers with this
status are fully functional iPATH servers that will accept network configuration changes. A Backup server with this status is
functioning as an Active Primary. It will execute channel changes, but will not accept network configuration changes.
• Standby This server is currently maintaining its database as a copy of the primary in readiness to take over if necessary.
• Offline This server should be maintaining a copy of the primary's database, but is not doing so. The offline status of a satellite
server means that it is ready to take over Agility units on its own subnet if necessary, but that it cannot communicate with the
primary server.
• Initialising This is the initial status upon start up. This should not persist beyond the initial start up procedure.
• Quiescent This is an inactive server on the network. It will not function without remedial action from its system administration.
A typical reason for this is the presence of another server on the network blocking its configured role. i.e. two servers are
configured as a primary on the same subnet.
• Failed This server has suffered a serious internal failure.
4.10.1 SERVERS > CONFIGURE SERVER
When you click
for a particular server, this page lists information about the unit and allows several basic settings to be
configured.
Role
Allows you to change the server's function between primary and solo (see descriptions left).
Device Name, Description and Location
These are useful identifiers for the server unit and its exact location. These become even more valuable as the number of servers
within the system increases.
For details about setting up server redundancy, please see
Appendix C - Redundant servers: Setting up and swapping
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