The system data mover (SDM) writes a system management facility
(SMF) type 42 subtype 4 record containing session statistics for each
virtual-concurrent-copy session when the session ends. Virtual-concurrent-copy
records contain the identifier VCC.
In the virtual-concurrent-copy SMF type 42 subtype 4 records, the
following information are included:
- the size of the date that are used on CC and VCC. The following
three fields shows the size:
- Total tracks
- CC tracks
- VCC tracks
- the numbers of CC tracks that are read from disk and cache
- the maximum cache size for CC at a SSID boundary
- the total data space size for CC at a job name boundary
- the available WSDS space for VCC at a controller serial number
boundary