WAN example

A design center contains the following hosts configuration in a WAN:

LIM starts bld on the following hosts:

  • lsf.conf in Design Center A

    LSF_LIC_SCHED_HOSTS="hostA1.designcenter_a.com hostA2.designcenter_a.com hostA3.designcenter_a.com"

  • lsf.conf in Design Center B

    LSF_LIC_SCHED_HOSTS="hostB1.designcenter_b.com hostB2.designcenter_b.com hostB3.designcenter_b.com"

License Scheduler candidate hosts are listed in the following order of preference:

  • lsf.licensescheduler in Design Center A

    HOSTS=hostB1.designcenter_b.com hostB2.designcenter_b.com hostA1.designcenter_a.com hostA2.designcenter_a.com hostA3.designcenter_a.com 

  • lsf.licensescheduler in Design Center B

    HOSTS=hostB1.designcenter_b.com hostB2.designcenter_b.com hostB3.designcenter_b.com

The following diagram shows hostB1.designcenter_b.com, the License Scheduler host for the WAN containing Design Center A and Design Center B.

How it works

The LSF LIM daemon starts the License Scheduler daemon (bld) on each host listed in LSF_LIC_SCHED_HOSTS in Design Center A and Design Center B.

Each host in the HOSTS list in Design Center A is a potential License Scheduler candidate in Design Center A and is running the bld daemon, but only one host becomes the License Scheduler host—the first host in the HOSTS list that is up and that is running the bld daemon. Similarly, the License Scheduler host in Design Center B is the first host in the HOSTS list that is up and that is running the bld daemon.

License Scheduler manages the licenses in Design Center A and Design Center B as follows:

  • Both design centers list hostB1.designcenter_b.com at the top of their HOSTS lists.

  • hostB1.designcenter_b.com is the License Scheduler host for Design Center A and for Design Center B.

  • The rest of the hosts in both design centers remain on standby as candidate License Scheduler hosts.

  • License Scheduler manages the license scheduling across the WAN connection.