Start a Main Storage Dump (StartMSD)

To have your program start a main store dump, use the API StartMSD (use the uppercase and lowercase shown).

To use this command:

This API returns the following information:

Bytes 0 and 1 Bytes 2 and 3 Bytes 4 through 4+N
16-bit return code

0 => Command successful

1 => Command unsuccessful

2 => Key not inserted

4 => Not in Manual mode

16 => System powered Off

16-bit additional data length N = 0 Not applicable