IBM has metadata blocks for:
- The date that the record was archived by the KDS Metadata Write
service.
- The date that the record was recalled by the KDS Metadata Write
service.
- The callable service or utility that was invoked the last time
that the key material was used in a cryptographic operation. This
field is updated when the last referenced date is updated.
- Data from the installation user data field in the old formats
of the CKDS (CKDUDATA), PKDS (PKDUDATA), or TKDS (TKDUDATA).
Installation metadata blocks
The maximum amount
of storage available to installation metadata is 500 bytes. This includes
the tag and length fields of the metadata blocks. The data stored
in the block can be in any format. The data will not be checked by
ICSF when added to a record.