Obtaining operational mode settings (peer-to-peer VTS data)

The Peer-to-Peer VTS data (PTPDATA) function allows an installation or application, such as Geographically Dispersed Parallel Sysplex (GDPS), to obtain operational mode settings and device-related information from the PTP VTS library. (See Geographically dispersed parallel sysplex support for peer-to-peer VTS for more information on GDPS.)

Figure 1 provides the CBRXLCS Assembler macro syntax that is used to perform the PTPDATA function.

Figure 1. Peer-to-Peer VTS data (PTPDATA) assembler macro syntax

CBRXLCS  TYPE=TAPE
         ,FUNC=PTPDATA
         ,LIBNAME=library-name
         ,DATATYPE={MODE | DEVICE}
         [,SUBPOOL=subpool-number]
         [,LOC={BELOW | ANY}]

When a value is requested, the keyword operand may be one of the following:

The name of the field that contains the requested value
The number, in parentheses, of a general register in the range of 2–12 that contains the address of the field