# Logical Control Unit Channel Paths

The Logical Control Unit Channel Paths attributes provide performance information for the channels associated with a logical control unit.

Channel Path IO Rate: The number of I/O operations per second accepted on this channel path.

CHPID: The channel path identifier. A channel path is the physical connection from the processor to I/O or peripheral devices. Some devices can operate with up to eight paths.

Complex Percent Utilized: The aggregate utilization of this CHPID by all processors in the complex.

Control Units Percent Busy: The control unit utilization is expressed as the percentage of time that all control units attached to the channel path are busy for I/O operations to this LCU.

Control Units: The ID of the physical control units that make up the logical control unit.

DCM Status: The dynamic Channel Path Management Status. Managed or unmanaged, dynamic channel path management provides the capability to dynamically assign channels to control units to respond to peaks in demand.

Description: The type of channel path identified by this CHPID.

Director Port Percent Busy: The percentage of initial selection attempts that were unsuccessful because the director port was busy.

LCU Number H: The system-assigned identifier of this logical control unit. An LCU is the logical representation of either a single control unit, with or without attached devices, or a group of control units that share devices.

LCU Number: The system-assigned identifier of this logical control unit. An LCU is the logical representation of either a single control unit, with or without attached devices, or a group of control units that share devices.

Managed System: The SMS name of this system.

Path ID: The Channel Path Identifier. A channel path is the physical connection from the processor to I/O or peripheral devices. Some devices can operate with up to eight paths.

Status: The status of this channel path on this LPAR.