FSPM can be configured for static or round-robin load balancing. You can also configure load balancing separately for each LUN.
In static load balancing, the software selects the best available path and all commands are sent over that path until the path is no longer operational or a better path becomes available. Then, a failover to another appropriate path is initiated.
In round-robin load balancing, commands are sent by turn over the best available paths. This ensures that
LUN commands are evenly distributed over any path that is available to access the
LUNs. Round-robin load balancing is the default method to manage data paths.
Note: Round robin is the preferred method as round robin balances I/O across all available optimized paths.
Load balancing allows the paths to share the load in different ways:
- Balances access to a LUN across all optimized Oracle FS System Controller ports available for that LUN
- Balances access from a host across the host HBA channels
To configure round-robin or static load balancing through Oracle FS System Manager (GUI), refer to the Oracle Flash Storage System Administrator’s Guide for additional information.