RESOPTS

Purpose

The RESOPTS statement defines special resource options that the controller uses to process ready operations and special resource events.

RESOPTS is defined in the member of the EQQPARM library as specified by the PARM parameter in the JCL EXEC statement.

Format

Parameters

CONTENTIONTIME(number of minutes|30)

CONTENTIONTIME determines how long an operation remains on the waiting queue for a special resource before HCL Workload Automation for Z issues message EQQQ515W.

Specify a number of minutes (1 to 9999) that an operation must wait before HCL Workload Automation for Z issues message EQQQ515W. Once issued, the message is not repeated for the same special resource and operation, although HCL Workload Automation for Z can issue more than one message for an operation if it is on more than one waiting queue.

Note: You must also specify an alert action for resource contention in the ALERTS statement, otherwise the message is not issued. For detailed information about the statement, see ALERTS.

DYNAMICADD(EVENT|OPER|NO|YES)

If a special resource is not defined in the current-plan extension file or special resource database, DYNAMICADD determines if HCL Workload Automation for Z creates a special resource in response to an allocate request from a ready operation or to a resource event created through the EQQUSIN or EQQUSINS subroutine, SRSTAT TSO command, API CREATE request, or a RODM notification.

Specify YES, which is the default value, if HCL Workload Automation for Z should create a special resource in the current plan; the special resource database is not updated. HCL Workload Automation for Z uses defaults to create the resource. When creating the resource, HCL Workload Automation for Z selects field values in this order:

Values supplied by the allocating operation or event. An operation can specify a quantity, an event can specify quantity, availability, and deviation.
HCL Workload Automation for Z defaults.

Specify NO if HCL Workload Automation for Z should not dynamically create a special resource. If an operation attempts to allocate the special resource, it receives an allocation failure, and the operation remains in status A or R with the extended status of X. If a resource event is received for the undefined resource, an error message is written to the controller message log.

Specify EVENT if HCL Workload Automation for Z should create a special resource in the current plan, only in response to a resource event. Resources are not created by operation allocations. But if the CREATE keyword of an SRSTAT command has the value NO, the special resource is not created.

Specify OPER if HCL Workload Automation for Z should create a special resource in the current plan, only in response to an allocate request from a ready operation. Resources are not created by events.

A dynamically created resource has these values if no description is found in the database:

Special resource

The name specified by the allocating operation or resource event.

Text

Blank.

Specres group ID

Blank.

Hiperbatch

No.

Used for

Control.

On error

Blank. If an error occurs, HCL Workload Automation for Z uses the value specified in the operation details or, if this field is also blank, the value of the ONERROR keyword of RESOPTS.

Available

The value specified by an event (Y or N) or blank.

Quantity

The value specified by an event (1 to 999999) or blank.

Deviation

The value specified by an event (-999999 to 999999) or blank.

Default values

The resource has these values that are defaults for quantity and availability:

Quantity: 1. Or the quantity specified by an allocating operation. The default quantity is automatically increased if contention occurs, but only for dynamically created resources.
Available: Yes.

Intervals

No intervals are created.

Workstations

The resource has default value asterisk (*), which means all workstations. Operations on all workstation can allocate the resource.

Also see the DYNAMICADD keyword of BATCHOPT in the list of BATCHOPT Parameters, which controls the dynamic creation of undefined special resources during planning.

Note:

If HCL Workload Automation for Z subscribes to a RODM class or object for a resource that does not exist in the current plan, the event created from the data returned by RODM causes a dynamic add of the resource, if DYNAMICADD has the value YES or EVENT.
It is strongly recommended that, if the feature of dynamic addition of special resources is used, because almost always a special resource dynamically added does not match the previously listed criteria of being automatically deleted, DYNAMICDEL(YES) be specified in the BATCHOPT statement of the DP batch job.

DYNONCOMPLETE(YES|NO|RESET|NOCHANGE)

This keyword defines the value to which the global availability of the special resource is reset when the operation that uses that resource completes. It applies only to special resources that are dynamically added. This value is used by HCL Workload Automation for Z only if the On Complete field is blank in the operation definition and special resource definition.

You can specify these values:

NOCHANGE: No action is taken. This is the default.
YES: The global availability of the special resource is reset to YES.
NO: The global availability of the special resource is reset to NO.
RESET: The global availability of the special resource is reset to blank.

LOOKAHEAD(percentage|0)

Specify this keyword if you want HCL Workload Automation for Z to check before starting an operation whether there is enough time before the resource becomes unavailable. You specify the keyword as a percentage of the estimated duration. For example, if you do not want HCL Workload Automation for Z to start an operation unless the required special resource is available for the whole estimated duration, specify 100. Specify 50 if at least half the estimated duration must remain until the resource is due to be unavailable. If you specify LOOKAHEAD(0), which is also the default, the operation is started if the special resource is available, even if it will soon become unavailable.

HCL Workload Automation for Z uses this keyword only if the special resource is used for control.

ONCOMPLETE(YES|NO|RESET|NOCHANGE)

This keyword defines the value to which the global availability of the special resource is reset when the operation that uses that resource completes. This value is used by HCL Workload Automation for Z only if the On Complete field is blank in the operation definition and special resource definition.

You can specify these values:

NOCHANGE: No action is taken. This is the default.
YES: The global availability of the special resource is reset to YES.
NO: The global availability of the special resource is reset to NO.
RESET: The global availability of the special resource is reset to blank.

If you use a value different from the default NOCHANGE, then the global availability of all special resources is reset each time an operation using them completes.

ONERROR(FREESRS|FREESRX|KEEPSR|FREESR)

This keyword defines how special resources are handled when an operation using special resources is set to ended-in-error status. The value of the ONERROR keyword is used by HCL Workload Automation for Z only if the ONERROR field of a special resource in the current plan is blank and the Keep On Error value in the operation details is also blank.

You can specify these values:

FREESR: HCL Workload Automation for Z frees all special resources allocated by the operation.
FREESRS: HCL Workload Automation for Z frees shared special resources and retains exclusively allocated special resources.
FREESRX: HCL Workload Automation for Z frees exclusively allocated special resources and retains shared special resources.
KEEPSR: No special resources allocated by the operation are freed.

HCL Workload Automation for Z frees or retains only the quantity allocated by the failing operation. Other operations can allocate a special resource if the required quantity is available. Special resources retained when an operation ends in error are not freed until the operation gets status complete.

You can specify exceptions for individual resources in the Special Resources database and in the current plan.

 RESOPTS CONTENTIONTIME(10)      1
         DYNAMICADD(YES)         2
         ONERROR(FREESRS)        3
         LOOKAHEAD(200)          4

In this example of a RESOPTS statement:

1: HCL Workload Automation for Z issues message EQQQ515W if an operation has waited 10 minutes to allocate a special resource.
2: If a special resource is not defined in the current plan, HCL Workload Automation for Z creates the special resource in response to an allocate request from a ready operation or to a special resource event.
3: Shared special resources are freed if the allocating operation ends in error. Exclusively allocated special resources are kept.
4: If there is less than twice (200%) an operation's estimated duration left before the resource is due to become unavailable, HCL Workload Automation for Z will not start the operation.