Notice: MDS and Inventory Scout no longer supports the latest system server firmware information (ie firmware for server FSP or BMC). The latest server firmware information can be obtained from Fix Central or through HMC's. From Jan 2023, Catalog.mic file is not updated with the latest server firmware information, but the file still contains the existing and future system IO firmware information.
Microcode Discovery Service is used to determine if microcode installed on your IBM POWER system is at the latest level.
MDS relies on an AIX utility called Inventory Scout. Inventory Scout is installed by default on all AIX 5 and later systems.
The easiest way to obtain an MDS microcode report is to upload an Inventory Scout survey file for analysis. For more information see the Overview of MDS service.