PolyServe Understudy 1.3
3. Adding and Deleting Cluster Servers
To add a cluster server, choose the Add Server option from the
Cluster menu. At the dialog box, enter the name or IP address of
the server you wish to add to the cluster.
- Note:
- The current version of Understudy does not allow having more
than two servers in a cluster.
- Note:
- All servers participating in the same cluster need to be on
the same Ethernet segment.
- Note:
- There is no need to add the server to which the GUI is
connected.
- Note:
- In order to use Understudy to protect a web site, an instance
of a web server needs to run on each of the corresponding
cluster server computers, and the contents of the web site
needs to be replicated on both servers, or be located on a
separate file system which is accessible from both servers.
- Hint:
- It is recommended that you only add servers running the
understudy software. (See the manual for more details.)
- Hint:
- In order to ensure maximum availability, it is recommended
that each server have its own electric power supply.
To Delete a server, you need to first select it by pointing
the mouse on its icon and then clicking on the left mouse
button. Once the server is selected, choose the Delete Selected
Server option from the Cluster menu. Understudy will then
prompt an authorization dialog box. Click OK to accept, or
Cancel to cancel the operation.
- Note:
- You cannot delete the server to which you are connected
from the Understudy console. If you wish to delete that
server, then simply connect to the other server in the
cluster and issue the delete command from there.
- Note:
- You cannot delete a server from a cluster if it is the only
server in the cluster since this is meaningless. If you wish
to eliminate a cluster altogether, you can simply delete all
IP addresses from the cluster.
- Note:
- If you delete a server and then add it again, it will be added
as backup for all configured IP addresses.