The Accounting and Measurement Data Area (IXLYAMDA) supports several levels of information that IXLMG returns. Certain coupling facility and structure requests might provide data that was not returned when the IXLMG service was first made available. For these request types, you can specify the level of information you want with the AMDALEVEL parameter on IXLMG. The AMDALEVEL parameter is available with version 1 of the IXLMG macro. The system returns base AMDA information when you specify AMDALEVEL=0 on your request; the system returns level-1 AMDA information when you specify AMDALEVEL=1 on your request. You should be aware of the type of output that you are requesting and be able to process it correctly. IBM® recommends that you use the level-1 service of IXLYAMDA in case additional new data is returned by the IXLYAMDA service. Note that the level-1 IXLYAMDA records are larger than the level-0 IXLYAMDA records.

The list shown in Types of Information Available lists the IXLYAMDA mappings that support both the base level (level=0) and the level-1 level of IXLYAMDA information. Note that a structure name to which a 1 is appended will contain all the information contained in the original structure plus, optionally, additional information pertaining to the information request type. See the IXLYAMDA macro in z/OS® MVS™ Data Areas in the z/OS Internet library for a description of the information returned.