HP P2000 HP StorageWorks P2000 G3 MSA System MPIO DSM Installation Guide (5903 - Page 14

Example dsmcli> pathinfo sn AF68DE12-01 Policy: SerialNumber: PathId: Weight: Primary: ScsiAddress: HbaWWPN: CtrlPortWWPN: State: BytesRead: BytesWritten: NumberReads: NumberWrites: RoundRobin AF68DE12-01 02010102 0 false 02000102 10000000C92F464E 217000C0FF0A4052 Online 177152 36864 46 9 dsmcli> pathinfo 10000000C930E202 standby dsmcli> pathinfo Policy: SerialNumber: PathId: Weight: Primary: ScsiAddress: HbaWWPN: CtrlPortWWPN: State: BytesRead: BytesWritten: NumberReads: NumberWrites: RoundRobin 9B68DE12-01 03010001 0 false 03000001 10000000C930E202 217000C0FF0A4052 Standby 184832 90112 51 21 policies The policies command displays the currently supported load balance policies. Each LUN can have its own load balance policy. Possible values include the following: • FailOver - No load balancing is performed. There is a single active path and the rest of the paths are standby paths. The active path is used for sending all I/O. If the active path fails then one of the standby paths is used. • RoundRobin - All paths are active paths. They are used for sending I/O in a round-robin fashion. • RoundRobinWithSubset - In configurations where some I/O paths are faster than others, this variant of the RoundRobin policy does not distribute I/O to the slower paths, as long as at least one of the faster paths is available. • Dynlqd - Uses the path with the least number of active requests. • Weighted - Each path is assigned a weight and I/O is sent on the path with the lowest weight. If the path with the lowest weight fails, then the path with the next lowest weight is used. • LeastBlocks - Uses the path with the fewest pending I/O blocks. See "devinfo" on page 11 for information on changing the policy. 14