CHPID CONFIGURATION REPORT PAGE NUMBER 1
LCU UNIT DEVICE
GRP PROTOCOL ADDR TYPE-MODEL
***** ******** **** **********
Figure 4-3. Example of a CUPID Conflguradon Report
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To accomplish this, the report lists CHPIDs in ascending order in the left-most column. To the right of CHPID, the characteristics of that channel path are given.
Next are listed, in order by control unit number, all of the control units that properly attach to this channel path. To the right of each control unit number are the characteristics of the control unit. Beside every control unit entry is listed, also in ascending order, the unit addresses of each device that is attached to that control unit and the device's type and model.
The fields of the report are defined as follows:
CHPID: is the valid CHPID number specified on the CHPID macros in the input.
CHANNEL SET: indicates the processor on which the chpid was defined (0 or 1).
CHANNEL NUMBER: is the number of the 4381 Processor's physical channel to which the CHPID is mapped. This data is taken from the information supplied by the user in the input.
MODE: is the type of channel pathl channel operation, as specified by the user. It is either BYTE, indicating byte multiplex mode or BLOCK, indicating that the channel operates in block multiplex mode.
CONTROL UNIT NUMBER:. is the number specified by the user on the defining macro.
CONTROL UNIT TYPE-MODEL: contains a user-supplied control unit type-model number.
CONTROL UNIT TYPE: always contains a 1 or a 2. The value is determined by the specification of the SHARED= parameter on the CNTLUNIT macro.
PHY CU NUMBER: means physical control unit number. This is a number generated by IOCP. It reflects the order in which the control units were defined by the user in the input deck. If the physical control unit number is 01, then it
represents the first valid CNTLUNIT specification found in the input. This physical control unit number is only used by the channel subsystem.
Note: The physical control unit number and the control unit number should not be confused and do not have to be the same number.
"PRY CU NUMBER" reflects the order of valid CNTLUNIT macros in the input and "CONTROL UNIT NUMBER" is that number supplied by the user as the CUNMBR= parameter value.
LCU GRP: is the logical control unit group to which the control unit has been assigned.
PROTOCOL: always contains either DCI or STREAM, indicating the type of operation used by this control unit for communicating with the channel subsystem.
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UNn ADDR: is the address that is broadcast on the channel for control units to recognize and respond. The same unit address may appear in the report more than once, but each two-digit unit address is a unique address for a channel. It is important to note that in this report, since only the unit address of the device is printed, the same device may actually appear on more than one channel path if it has been defined to be attached to multiple paths.
DEVICE TYPE-MODEL: The device type is the parameter value from the UNIT= parameter of the 10DEVICE macro specification for this device. The model field contains the user-supplied device model designation.
Logical Control Unit Report
The Logical Control Unit report displays the I/O devices and control units that 10CP has grouped together based on the sharing of the control units. Following is the list of fields contained in the Logical Control Unit Report and a brief
description of each.
LOG CNTL UNn NUM: is the number generated by 10CP as the group identifier for the array of control units and I/O devices.
CHPID NUM: are the user-supplied CHPID numbers indicating to which
channels a particular logical control unit group is attached. There is a possibility of having from one to four CHPIDs associated with a logical control unit group.
CONTROL UNIT NUM: contains the control unit numbers of the valid control units that are a part of this logical control unit group. These numbers are the ones specified by the user on the CNTLUNIT macro statements. There may be any number of control units as part of a logical control unit group. Each entry in this field of the report has a direct correspondence to each entry in the field to the right. The first control unit number in this CONTROL UNIT NUM field has a physical control unit number and that number is printed in the first entry position of the PHYSICAL CNTL UNIT NUM field, and so forth.
PHYSICAL CNTRL UNn NUM: contains the physical control unit numbers of the valid control units which are a part of this logical control unit. A physical control unit number is a number generated by 10CP. It reflects the order in which the control units were defined by the user in the input deck. If the physical control unit number is 01, then it is the first valid CNTLUNIT specification found in the input.
Note: The physical corurol unit number and the control unit number do not have to be the same. The physical control unit number reflects the order of valid CNTLUNIT macros in the input and the control unit number is that number supplied by the user as the CUNMBR= parameter value.
AITACHED DEV NUM: is the number of the device attached to this logical control unit group. This number is taken from the ADDRESS= parameter value or the optional DEVNUMBR= parameter in the 10DEVICE macro that was used to define the device.
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SUBCHAN NUM: is the subchannel ID of the device. The subchannel ID is a number generated by IOCP. It reflects the order in which devices were defined by the user in the input deck. If the subchannel number is 001, then it represents the first valid IODEVICE specification found in the input.
This report is printed in ascending order by logical control unit group number.
IOCP VERSION 001 LEVEL 000 LOGICAL CONTROL UNIT REPORT
PHYSICAL CNTL ATTACHED SUBCHAN
UNIT NUM CHPID NUM UNIT NUM DEV NUM NUM
Figure 4-4. Example of a Logical Control Unit Report
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TNL GN24-1029 (15 Jun 1988) to GC24-3964-3.