TS/MP Management Programming Manual (G06.24+, H06.03+)

Server Class Commands
NonStop TS/MP Management Programming Manual—540082-001
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FREEZE SC
Tokens in Response Buffer
For FREEZE SC, a common error value for ZSPI-TKN-RETCODE is:
For descriptions of all error-token values and their associated error lists, see
Section 10, Event Management.
Considerations
If you are using Pathway/iTS, consider:
•
If ZIGNORESTOPMODE is set to ZPWY-VAL-NO, the freeze does not take effect
until all SCREEN COBOL STOP-MODE special registers have a value of zero and
no server in the server class has incomplete or outstanding requests. In the
interim, the server class is put into the FREE-PENDING state.
•
If a SCREEN COBOL requester attempts to send a request to a frozer server class
and the SEND statement is coded without an ON ERROR clause, these errors
occur:
°
If the terminal is not in TMF transaction mode, the terminal pauses until the
server class is thawed.
°
If the terminal is in TMF transaction mode, the terminal pauses and the TMF
subsystem backs out the current transaction. After the THAW command
resumes terminal activity, the TCP directs the TMF software to restart the
transaction at the BEGIN-TRANSACTION verb and to assign a new
transaction identifier, and increments the RESTART-COUNTER special
register by one.
If the SEND statement is coded with an ON ERROR clause, the TCP passes
control to the screen program for the appropriate action.
•
Unlike the TCP, a LINKMON process does not call any TMF procedures or
increment any special registers. It is the responsibility of the Pathsend requester to
detect errors (by using error codes) and proceed as required by the application.
Error
Number Error Token Description
1057 ZPWY-ERR-PM-ALREADYFROZEN The server class is already frozen.