Platform LSF Administration Guide Version 6.2
Multiple FLEXlm License Server Hosts
Administering Platform LSF
186
3
See “Starting the license daemons” on page 182. Start lmgrd on all license server
hosts, not just one.
4
To allow the new permanent licenses to take effect, reconfigure the cluster with the
commands:
❖
lsadmin reconfig
❖
badmin reconfig
Redundant license server hosts
Configuring multiple license server hosts is optional. It provides a way to keep LSF
running if a license server host goes down. There are two ways to configure multiple
license servers. This section describes redundant license server hosts. See “Distributed
license server hosts” on page 185 for information on the second configuration.
A permanent license key is tied to a particular license server host with a specific host ID.
If that host is down, the license service is not available and LSF becomes unlicensed if
the master LIM is shut down or restarted.
To prevent down time, you can configure three hosts as license server hosts. The license
server daemon (
lmgrd) and LSF vendor license daemon (lsf_ld) run on each license
server host. With three redundant server hosts, if any one host is down, the other two
continue to serve licenses. If any two hosts are down, the license service stops.
Enabling multiple license server hosts
See the procedures for installing and configuring a permanent license. There are a few
differences when you use redundant license server hosts:
1
See “Getting a permanent license” on page 176. You must obtain a license file that
contains three
SERVER lines. You must provide the following information for each
license server host:
❖
Host name and FLEXlm host ID
2
See “LSF_LICENSE_FILE parameter” on page 177. Specify the location of all the
licenses in LSF_LICENSE_FILE, not just one. Use a pipe (|) to separate each
location. List the primary license server host first (the one you want LSF to contact
first).
3
See “Starting the license daemons” on page 182. Start lmgrd on all license server
hosts, not just one.
4
To allow the new permanent licenses to take effect, reconfigure the cluster with the
commands:
%
lsadmin reconfig
%
badmin reconfig