Description

The IXLMG macro allows an authorized caller to request measurement data related to the use of a coupling facility. The information is available by coupling facility or by structure. Information on subchannels and connectivity is returned when any coupling facility information is requested.

Structures in the IXLYAMDA mapping macro provide the format for the data:

IXLYAMDHD maps common area for header entries
IXLYAMDAREA maps the header record
IXLYAMDCF and IXLYAMDCF1 map coupling facility information
IXLYAMDSTRL and IXLYAMDSTRL1 map coupling facility list structure information
IXLYAMDSTRC and IXLYAMDSTRC1 map coupling facility cache structure information
IXLYAMDSC and IXLYAMDSC1 map coupling facility subchannel information
IXLYAMDSLL and IXLYANDSLL1 map structure limits for a list structure
IXLYAMDSLC and IXLYAMDSLC1 map structure limits for a cache structure
IXLYAMDSSCM maps storage-class memory information for a structure
IXLYAMDCFMI maps coupling facility measurement header information
IXLYAMDCFMINFO maps coupling facility measurement information
IXLYAMDCFRF maps coupling facility remote facility information
IXLYAMDCFCP maps coupling facility channel path header information
IXLYAMDCFCPINFO maps coupling facility channel path information
IXLYAMDSCSC and IXLYANDSCSC1 map structure information for cache storage classes
IXLYAMDSCOC maps structure information for cache cast-out classes
IXLYAMDSCOCSTATS maps structure information for cache cast-out classes
IXLYAMDSSCC maps the structure copy controls record.

The data returned may be system-oriented data (system attachment information or statistics on the system's use of a structure) or sysplex-wide data (data that is retrieved from the coupling facility itself).