IPZ is a VPD (Vital Product Data) format used in IBM Power systems. The format consists of keywords that are stored as key-value pairs (Keyword name and its value). Keywords are grouped into records, usually with similar function grouped into a single record.
The [OpenPower VPD] 1 format is quite similar to the IPZ format and describes the record-keyword structure.
Also refer to the [VPD Collection design document] 2 that describes how the VPD collection application on the BMC will parse and publish the VPD data for IBM Power systems on D-Bus.
The D-Bus interfaces defined here describe how IPZ VPD will be made available on D-Bus. Each YAML here represents a record in the IPZ VPD and keywords that belong to that record are represented as properties under that interface. The type of every property shall be a byte array.