Siemens V4.0 User Manual

Page of 365
Tools for special tasks
System administrator tools
Product Manual
U7613-J-Z815-6-76
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07
7.3.6
Adding and removing server names (addserver/delserver)
You can use the 
addserver
 command to add an additional server name on a system, in order 
to enable the clients to access the server with the newly added name.
You can use the 
delserver
 command to delete a server name that was added with the 
addserver
 command. This disables the clients to establish a new connection to the server 
using this server name.
Usually these commands are used in high availability configurations.
Syntax:
addserver
 <computername>
delserver
 <computername>
Example:
One of two servers (
lion
 and 
tiger
) fails (e.g. 
tiger
). The system administrator enters the 
following command on the 
lion 
system:
/var/opt/lanman/etc/addserver tiger
The connected clients have to re-establish the connection to the resources to be used. 
While the clients establish the connection under the name 
tiger
, they use resources on the 
lion
 server.
After the failed server is operational again, the command for deleting the alternative name 
must be entered on the second server:
/var/opt/lanman/etc/delserver tiger
   Existing connections to the server 
lion
 which were set up using the name 
tiger
 are 
not terminated when the name is deleted.
Advanced Server for UNIX can then be started on the failed server and the clients can use 
the resources on the 
tiger
 server again.
   This example takes no note of any actions that may be necessary to ensure the 
availability of resources and user data.
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