PCHID summary report

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The PCHID Summary Report lists the PCHIDs defined in the IOCDS and the channel paths that cannot have PCHIDs. The report does not include channel paths that require a PCHID when an IOCDS is written and for which no PCHID has been defined. It includes channel paths that cannot have a PCHID at the bottom of the report. The report also includes PCHIDs or VCHIDs associated with a FID. For each channel path or FID, the report shows the following:
  • PCHID number, PCHID and PORT numbers, VCHID number, or AID and PORT numbers associated with the channel path or FID. VCHID numbers are indicated by '(V)'. If the MIXTYPE keyword was specified for the PCHID, this is indicated by '(M)'.
  • CHPID number of the channel path
  • Type of channel path or FID
  • Switch number associated with the channel path
  • CSS IDs to which the channel path has access
  • PNETID values for the channel path or FID
  • Any configuration discrepancy or comment for the channel path or FID.

Figure 1 shows an example of the PCHID Summary Report.

If the PCHID, VCHID, and AID keywords are not allowed for the channel path type, the report column contains N/A. If the report was produced for a deck verification and channel paths that require the PCHID keyword did not specify PCHID, the channel paths are excluded from the report and a warning line is printed at the end of the report. PCHIDs are separated by a blank line on a modulo-16 basis which on some CPCs indicates that the PCHIDs are associated with different card slots..

If a FID is being reported, the CHPID and SWITCH report columns contain N/A.

If the SWITCH keyword is not allowed for the channel path type, the report column contains N/A. If the SWITCH keyword is allowed but not specified for a channel path, then the column contains NONE.

If a CHPID or FID type supports multiple PNETID values, the PNETID values are reported on successive lines. The first line is associated with the PNETID for port 1, the second line is associated with the PNETID for port 2, and so on.

The CHANNEL CONFIGURATION DISCREPANCY OR COMMENT report column indicates whether a channel path has a configuration discrepancy. The report column also displays a comment for certain channel path types when the channel path does not have a configuration discrepancy. NO indicates no configuration discrepancy exists. YES indicates that a configuration discrepancy exists and is accompanied by a description of the discrepancy. More than one configuration discrepancy can exist for a channel path but only one discrepancy is reported. The report column displays a comment for FID types.

Channel configuration discrepancies are conditions that should not exist on your CPC. Because IOCP processes channel paths in ascending PCHID number order, it treats the lower numbered PCHIDs as accurate and reports discrepancies against the higher numbered PCHIDs. An IOCDS is produced but IOCP reports the discrepancies so that they can be corrected. For an explanation of the channel configuration rules for your CPC, see Machine limits and rules.

If no configuration discrepancy exists, a comment is displayed for certain channel path types and all FID types. The following comments are displayed:
  • Channel path types that support a maximum number of valid subchannels (for example, FCP and OSD) display the current number of valid subchannels defined on the channel path. For OSN channel paths, the OSN and 3745 subchannel totals are both displayed. For IQD channel paths, the number of subchannels defined on the channel path and the total number of subchannels for all IQD channel paths in the configuration are both displayed. For more information about the maximum subchannels supported for a channel path type, see Machine limits and rules.
  • The current number of unit addresses defined on channel path types CNC, CTC, FC, and FCV are displayed. For more information about the maximum unit addresses supported for a channel path type, see Machine limits and rules. IOCP might generate more unit addresses for a spanned FC channel path (PATH keyword in the CHPID statement) than for an unspanned channel path. See FC control unit definition considerations:. Also, IOCP might generate more unit addresses for a shared CTC channel path than for an unshared channel path. See Shared ESCON CTC considerations.
  • The AID and PORT keyword values defined on channel path type CIB or CS5.
  • The PCHID and PORT keyword values defined on channel path type CL5.
  • The first FID number defined on a PCHID, PCHID-PORT, or VCHID.
  • The PCHID and PORT keyword values defined on function types HYL and ROC2.
The following channel configuration discrepancies can exist for a channel path:
YES - It exceeds max number of FICON+OSA | ISC-3 | CFS+CFR | CBS+CBR | CFP | CBP | CL5 | ICP | FCV | OSA channel paths allowed.
This discrepancy indicates that the channel path type has exceeded the maximum number of channel paths allowed for your CPC for the indicated channel hardware type. This discrepancy exists for all higher numbered channel paths of the same channel hardware type.
YES - It exceeds max number of CIB Adapter IDs allowed
This discrepancy indicates that the CIB Adapter ID (AID) has exceeded the maximum number allowed for your CPC. This discrepancy exists for all other channel paths defined on the same AID and for all channel paths on higher numbered AIDs.

In addition to the Channel Configuration Discrepancy report column, IOCP prints an informational line after a channel path that has certain discrepancies. These informational lines are as follows: 

PCHID xxx | CHPID xx in CSS y has exceeded the maximum number of FICON+OSA |
CF Hardware | ISC-3 | CFS+CFR | CBS+CBR | CFP | CBP | CL5 | ICP | FCV | OSA channel 
paths allowed by your processor. 
AID xx has exceeded the maximum number of Adapter IDs allowed by your processor
The following channel path types are associated with the channel hardware types listed in the first informational line:
  • FICON+OSA = FC, FCV, FCP, OSC, OSD, OSE, OSM, OSN, and OSX
  • CF Hardware = CFS, CFR, CFP, CBS, CBR, and CBP
  • ISC-3 = CFS, CFR, and CFP
  • CFS+CFR = CFS and CFR
  • CBS+CBR = CBS and CBR
  • OSA = OSC, OSD, OSE, OSM, OSN, and OSX

IOCP lists caution message ICP055I at the end of this report when any channel configuration discrepancies exist.

At the end of the PCHID Report, the totals are listed for each channel card type and FID type your CPC supports. The totals for the internal channel path types and internal FID types your CPC supports are also included.