Channel subsystem server time protocol commands

摘要

A protocol for communicating with the timing facility used in a data processing network to provide synchronization is provided via the execution of a machine instruction that accepts a plurality of commands. The interaction is provided through the use of message request blocks and their associated message response blocks. In this way timing parameters may be determined, modified and communicated. This makes it much easier for multiple servers or nodes in a data processing network to exist as a coordinated timing network and to thus more cooperatively operate on the larger yet identical data files.

主权项

1. A computer program product for obtaining information, said computer program product comprising:
a storage medium readable by a processor and storing instructions for execution by the processor for performing a method comprising:
obtaining a store machine instruction for accessing a first control block of memory and a second control block of memory, the first control block of memory being a request block and including a command code field to specify a store command, and the second control block of memory being a response block, the machine instruction being defined for computer execution according to a computer architecture; andexecuting said machine instruction, said executing comprising:
accessing said command code field of said first control block to obtain said store command;based on the store command, obtaining information relating to a Server Time Protocol (STP) facility; andstoring said information in the second control block.