Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 98)

82 Brocade Virtual ADX Server Load Balancing Guide
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Disabling or deleting VIPs and real ports
2
Enabling force-delete
SLB allows the graceful shutdown of servers and services. By default, when a service is disabled or
deleted, the Brocade Virtual ADX does not send new connections to the real servers for that
service. However, the Brocade Virtual ADX does allow existing connections to complete normally,
however long that takes.
You can force the existing SLB connections to be terminated within two minutes, by using the server
force-delete command.
If you disable or delete a service, do not enter an additional command to reverse the command you
used to disable or delete the service, while the server is in graceful shutdown.
NOTE
Refer to “Real server shutdown” on page 83 for important information about shutting down services
or servers.
Suppose you have unbound the Telnet service on real server 15, but you do not want to wait until
the service comes down naturally. You can force server load-balancing connections to be
terminated by entering the following command.
Virtual ADX(config)#server force-delete
Syntax: server force-delete
To display active sessions for a specific server, enter show server real server number and a display
as seen below will appear. Notice that the display below shows the Telnet connection on server 15
as awaiting unbinding. Without server force-delete, this feature will stay in this state until the
session ends naturally.
Because the binding is awaiting deletion, it will also still be seen as an active binding, if you enter
the show server bind command, such as the following.
After force delete is enabled, the unbinding will occur within two minutes.
NOTE
The binding for the real server will also be eliminated from the show server bind display.
Virtual ADX(config-vs-building)#show server bind
Virtual Server Name: building, IP: 10.95.5.130
http -------> s21: 10.95.18.21, http
s15: 10.95.18.15, http
s50: 10.95.18.50, http
ftp -------> s50: 10.95.18.50, ftp
s21: 10.95.18.21, ftp
s15: 10.95.18.15, ftp
telnet -------> s15: 10.95.18.15, telnet
s21: 10.95.18.21, telnet
s50: 10.95.18.50, telnet