To replan, you can configure IBM® Z Workload Scheduler to
automatically send the Symphony file to IBM Workload Scheduler after
you modify the current plan. To send the new Symphony file automatically,
set the CPUAUTOLNK parameter of the CPUREC initialization
statement to ON.
Otherwise, you can control manually
when the Symphony file is delivered to the distributed agent and set
the CPUAUTOLNK parameter to OFF. You can improve scheduling performance
in these ways:
Reduce network congestion by controlling when the file is delivered
Keep jobs from being scheduled on a workstation
For the syntax and description of CPUAUTOLNK, refer to Scheduling End-to-end with Fault Tolerance Capabilities.
When replanning, the distributed agent can receive and
run the Symphony file and report job status back to IBM Z Workload Scheduler only
if the workstation is active and linked. From the MODIFYING WORK STATIONS
IN THE CURRENT PLAN panel, you can view and modify the status of the fault-tolerant agent.
Select option 5.5 from the main menu to display the panel: Figure 1. EQQMWSLL - Modifying
work stations in the current plan
EQQMWSLL -------- MODIFYING WORK STATIONS IN THE CURRENT PLAN Row 1 to 8 of 8
Command ===> Scroll ===> CSR
Enter the row command S to select a work station for modification, or
I to browse system information for the destination. If the work station
is virtual enter the row command V to vary the global status.
Row Work station F V L S T R Completed Active Remaining
cmd name text A oper dur. oper oper dur.
' CPUA Workstation 1 N A C A 0 0.00 0 1 0.08
' CPUV Workstation 2 N A C A 0 0.00 0 0 0.00
S CPU2 Workstation 3 N L A C A 0 0.00 0 0 0.00
' VWS1 Virtual workstation Y Y A C A 0 0.00 0 0 0.00
' PRT1 Printer pool N P A 0 0.00 0 0 0.00
' SETP Used to prepare JCL N G S 0 0.00 0 0 0.00
' STC1 Started task N O C A 1 0.00 0 0 0.00
' WTO1 Messages N A G C 0 0.00 0 0 0.00
******************************* Bottom of data ********************************
In the S column, the possible values for status are
the following:
A
Active. The workstation is running and scheduling its own plan.
O
Offline. The workstation is not running and scheduling its own
plan.
The Fully Active (FA) column
shows if all the destinations of the virtual workstation are active:
Y
All the destinations are active.
N
Some or all the destinations are not active.
In the L column, the possible values are the
following:
F
Fully linked. The workstation is fully linked through its primary
connection (either the domain manager or the OPCMASTER, if the fault-tolerant
agent is a domain manager) and all secondary connections (the full-status
fault-tolerant agents that are in the same domain). You can define
a fully linked workstation only if ENABLESWITCHFT is set to YES in
the TOPOLOGY statement. Fully linked workstations can be only fault-tolerant
agents, domain managers, and standard agents.
L
Linked. Communication is established between IBM® Z Workload Scheduler and
the workstation.
U
Unlinked. There is not an established connection to send and exchange
events.
Job status includes information such
as job started, job run, and job completed. When the new plan is produced,
the distributed agents are stopped, and the scheduling on the agents
is interrupted. The scheduling is resumed only when the new Symphony
file is delivered.
When you send the Symphony file
(CPUAUTOLNK=OFF) manually, you must manually link the fault-tolerant agent.
Perform the following steps:
In the MODIFYING A WORK STATION IN THE CURRENT PLAN panel, enter
one of the following commands: Figure 2. EQQMWSTP - Modifying the status of a fault-tolerant
workstation in the CP
EQQMWSTP ------- MODIFYING A WORK STATION IN THE CURRENT PLAN -----------------
Command ===>
Select one of the following command:
L LINK To send command link work station
U UNLINK To send command unlink work station
S START To send command start work station
P STOP To send command stop work station
Work station : FMAX COMPUTER AUTOMATIC FTW
Type : Computer FT Work Station
Status : Active
Status link : Linked
L
To link the workstation
U
To unlink the workstation
S
To start workstation
P
To stop workstation
The MODIFYING WORK STATION STATUS IN THE CURRENT PLAN panel displays
the change.
In some situations the Symphony file in IBM Workload Scheduler is
not created. For example, there might be a recovery from a disaster
situation. In this example, the new current plan is created, but the
Symphony file is not. In this situation, you can keep the current
plan up-to-date by selecting the 5 (SYMPHONY RENEW) option from the
PRODUCING OPC DAILY PLANS panel.
The following
are some other examples about the need of renewing the Symphony file:
You change the TCP/IP port number on a workstation.
You modify the CPUREC or DOMREC initialization statements.
You make changes to the job in the script library EQQSCLIB.
End-to-end scheduling with fault tolerance capabilities has configuration
errors, for example the specified directories do not exist, the file
system is full, or the workstation is not correctly defined.