Channel Paths attributes
This table provides information about the utilization of a channel path.
Cluster Name The name of the LPAR Cluster to which the host LPAR is assigned. The name corresponds to the I/O Cluster to which the Channel Path is assigned. A valid value is a string of up to 18 characters. The format for the name is xxxxxxxx.ssss.tttt, where:
- xxxxxxxx is the name of the Sysplex.
- ssss is the last 4 characters of the CPC serial number.
- tttt is the first 4 characters of the CPC Model number.
This format is consistent with the Cluster Name provided in the LPAR Clusters workspace. A value of "Not available" is provided if the channel path is not managed by Dynamic Channel Path Management (DCM).
Complex Percent The percentage of time that the channel was busy within the complex. A valid value is a number to one decimal places accuracy. The range for this value is from 0 to 1000.
Configured A description of how the channel path was reconfigured during the RMF interval. A valid value is an integer. Values appear on the workspace as follows:
- 0 = Unknown.
- 1 = Add. Channel path was added during the RMF interval.
- 2 = Mod. Channel path was modified during the RMF interval.
- 3 = Del. Channel path was deleted during the RMF interval.
- 4 = Unavailable. Status cannot be determined because an RMF substitute is being used and no CPDT is present.
- 5 = <blank>. No data was returned.
CPMF The Channel Path Measurement Facility (CPMF) calculates channel path utilization. A valid value is an integer. Values appear on the workspace as follows:
- 0 = Unknown
- 1 = Available. In LPAR mode, CPMF calculates LPAR channel path utilization, which in turn determines complex-wide channel path utilization. If the channel path is shared, complex-wide utilization is calculated by other channel measurement techniques.
- 2 = Unavailable. CPMF is supported but is unavailable for use. All channel path utilization information is calculated by other channel measurement means. In LPAR mode, for shared channel paths, values for LPAR channel utilization are blank. In basic mode, only complex-wide values are displayed. If you restart CPMF, this status changes to available and channel path utilization is calculated as described under Available.
- 3 = NotInstalled. CPMF is not supported on your system. All channel path utilization information is calculated by other channel measurement techniques. Only complex-wide values are available for both LPAR and basic modes.
- 4 = Compatibility
- 5 = Extended
DCM Enabled Indicates whether Dynamic Channel Path Management (DCM) is enabled for this channel path. It is possible that the Intelligent Resource Director (IRD) can change the channel's configuration to help meet Workload Manager goals. A valid value is an integer. Values appear on the workspace as follows:
- 0 = No
- 1 = Yes
LPAR Percent The percentage of time the channel was busy working for the logical partition. This column can be blank or non-blank. The column is blank when: a) the system is running in basic mode; b) the channel path is offline; c) the ESCON Multiple Image Facility (EMIF) is not installed; or d) CPMF is unavailable or not installed.
Valid values range from 0 to 100% when the system is running in LPAR mode, EMIF is installed, and the channel path is online. If the channel path is shared, this value represents the LPAR's utilization of the channel path from the start of the RMF interval. If the channel path is not shared, the LPAR utilization value is the same as the complex-wide utilization value.
This value can be greater than the utilization of the channel by the entire complex, since the LPAR value is obtained from the hardware, whereas the Complex value is sampled and may not include channel utilization.
Managed System z/OS operating system in your enterprise that an OMEGAMON for z/OS agent is monitoring. A valid value is a string of up to 32 characters.
Mode The mode of the channel path. A valid value is an integer. Values appear on the workspace as follows:
- 0 = Unknown
- 1 = Basic. There are no partitions.
- 2 = LPAR. There are partitions.
Online An indicator showing whether the channel is online. A valid value is a string of up to 1 characters. Valid values are Y or N.
Path ID The channel path ID. A valid value is an integer, displayed as a hexadecimal string. The range for this value is from 0 to 255.
RMF Interval Start The time in HH:MM:SS format when the current RMF interval started. A valid value is a string of up to 8 characters.
Sample Count The number of samples in this measurement interval. A valid value is an integer.
Shared An indicator of whether the channel is shared with other logical partitions. Only ESCON channels (ESchn) or directors (ESdir) can be shared channels. A valid value is a string of up to 1 characters. Valid values are Y or N.
Type The channel data type. A valid value is a string of up to 6 characters. Some of the valid values are shown in the following list. Because the list of possible values is long and changes often, please refer to IBM's RMF Report Analysis Manual for the most current list.
- Block. Block multiplexor channel
- Byte. Byte multiplexor channel
- ESchn. ESCON channel
- ESctc. ESCON channel-to-channel adapter
- EScnv. Channel connected to an ESCON converter
- ESdir. ESCON channel attached to an ESCON director
- Unkn. Unknown type.