Channel Path

The Channel Path attributes provide channel configuration and performance information. Extended information is provided for FICON® channels.

Bus Percent Utilization: For FICON channels only, represents the percentage of the maximum available bus cycles being used in this collection interval.

Complex MB Second Read: For FICON channels only, represents the number of megabytes of data transferred for read requests by this channel path for all LPARs in this complex.

Complex MB Second Written: For FICON channels only, represents the average number of megabytes written by this channel path per second during this interval for the complex.

Complex Percent Read Units: For FICON channels only, represents the ratio of total read units for this channel, for the complex, divided by the maximum read units for this channel.

Complex Percent Utilized: The ratio of total channel busy time divided by elapsed time for this interval.

Complex Percent Write Units: For FICON channels only, represents the ratio of the number of write units for the complex divided by the maximum write units for this channel.

CPMF Group Number: The number of the Dynamic Channel Path Management Group to which this channel path is assigned.

DCM Status: The Dynamic Channel Path Management Status. DCM allows you to dynamically assign channels for controlling units to respond to peaks in demand.

Description: The type of channel connection. The values are as follows:
  • Unknown=0X00
  • Parallel_Block_Multiplex=0X01
  • Parallel_Byte_Multiplex=0X02
  • ESCON_Point_to_Point=0X03
  • ESCON_Switched_or_Point_to_Point=0X04
  • ESCON_Switched_Point_to_Point=0X05
  • ESCON_Path_to_a_Block_Converter=0X06
  • Native_Interface=0X07
  • CTC_Point_to_Point=0X08
  • CTC_Switched_Point_to_Point=0X09
  • CTC_Switched_or_Point_to_Point=0X0A
  • Coupling_Facility_Sender=0X0B
  • Coupling_Facility_Receiver=0X0C
  • Unknown=0X0D Unknown=0X0E
  • ESCON_Path_to_a_Byte_Converter=0X0F
  • OSA_EXPRESS=0X10
  • OSA_DIRECT_EXPRESS=0X11
  • Open_Systems_Adapter=0X12
  • Internal_System_Device=0X13
  • Unknown=0X14
  • Unknown=0X15
  • Cluster_Bus_Sender=0X16
  • Cluster_Bus_Receiver=0X17
  • Internal_Coupling_Sender=0X18
  • Internal_Coupling_Receiver=0X19
  • FICON_Point_to_Point=0X1A
  • FICON_Switched=0X1B
  • FICON_to_ESCON_Bridge=0X1C
  • FICON_Incomplete=0X1D
  • Direct_System_Device=0X1E
  • Emulated_I/O=0X1F
  • Unknown=0X20
  • Integrated_Cluster_Bus_Peer=0X21
  • Coupling_Facility_Peer=0X22
  • Internal_Coupling_Peer=0X23
  • Internal_Queued_Direct_Comm=0X24
  • FCP_Channel=0X25
  • Coupling_Over_Infiniband=0X26
  • OSA_ZBX_Data=0X30
  • OSA_ZBX_Management=0X31
  • High_Performance_FICON=0X99

LPAR MB Second Read: For FICON channels only, represents the number of megabytes of data transferred for read requests by this channel path for this LPAR.

LPAR MB Second Written: For FICON channels only, is the average number of megabytes written by this channel path per second during this interval for this LPAR.

LPAR Percent Read Units: For FICON channels only, is the ratio of total read units for this LPAR, divided by the maximum read units for this channel.

LPAR Percent Utilized: The ratio of channel path busy time for this LPAR divided by elapsed time for this interval.

LPAR Percent Write Units: For FICON channels only, is the ratio of total write units for this channel, for this LPAR, divided by the maximum write units for this channel.

Managed System: The SMS name of this system.

NonSMS Volumes: Represents the number of DASD volumes accessible through this channel path that are not managed by SMS.

Path ID Hex: The two-digit hexadecimal number assigned by HCD identifying this channel path to the system.

Path ID: The two-digit hexadecimal identifier for this channel path assigned by HCD.

Shared Path: Denotes whether this path is shared with other LPARs (yes), or is dedicated to this LPAR (no).

SMS Volumes: The number of SMS-controlled DASD volumes accessible through this channel path.

Status: Denotes the availability state of this channel path.

Time Stamp: The date and time this data was reported. Primarily for use in historical reporting.

Total Volumes: Represents the total number of DASD volumes accessible by this channel path.

Type: Indicates the path type, including Unknown, Block Channel, Byte Channel, ESCON Director Port, ESCON Channel, ESCON Converter, RMF™ Undetermined Type, and Channel-To-Channel Adaptor.

zHPF Requests Deferred per Second: The rate of zHPF requests attempted by the channel per second that were deferred due to unavailable resources. This will be zero when zHPF is not available.

zHPF Requests per Second: The rate of zHPF requests attempted by the channel per second. This will be zero when zHPF is not available.

Parent topic: Attributes