Technical data
Introduction to VSX Clusters
Check Point VSX Administration Guide NGX R67 | 87
VSLS allows the administrator to either manually place specific Virtual Systems on specific cluster
members, or allow the system to determine the dispersal configuration automatically. Refer to ("Configuring
Virtual System Load Sharing" on page 113).
Note - You cannot configure a VSX ClusterXL in the Load Sharing
mode if the cluster contains Virtual Systems in bridge mode or Virtual
Routers.
Virtual System Priority
Virtual System priority refers to a preference regarding which member hosts a Virtual System's active,
standby, and backup states. This preference is expressed as an integer value, as shown in the following
table.
Priority
Definition
0
Highest priority, indicating the cluster designated to host the
Virtual System's active state.
1
Second highest priority, indicating the member designated
to host the Virtual System's standby state.
> 1
Lower priorities, indicating the members designated to host
a Virtual System's backup state. The cluster member
assigned priority 2 will be the first to switch the Virtual
System to the Standby state in the event of a failure of either
the Active or Standby Virtual System. A cluster member
assigned priority 3 would be the next in line to come online
in the event of another failure.
You can change the priority designation ("Distributing Virtual Systems Amongst Members" on page 115)
using the vsx_util vsls command.
Virtual System Weight
Since all Virtual Systems are not equal in terms of traffic and load, VSLS allows you to assign "weights" to
individual Virtual Systems. The weight of a Virtual System affects the dispersal pattern of other Virtual
Systems across cluster members. Assigning a heavier weight to a Virtual System gives it a larger share of a
particular member's resources, and accordingly, disperses the other Virtual Systems to other cluster
members.
By default, all virtual systems are assigned an equal weight factor of 10. You can change the weight factor
("Distributing Virtual Systems Amongst Members" on page 115) using the vsx_util vsls command.