OpenTP1 Version 7 Operation

[Contents][Index][Back][Next]

Appendix H.3 Estimating the size of a server recovery journal file

When you use the independent restart facility and the system switchover facility of the MCF service, you must create the server recovery journal file for the MCF service as an OpenTP1 file beforehand. When you do so, use the following formula to determine the size of the server recovery journal file:

J x Ci x Cg (unit: bytes)

Legend:
J: Value specified in the jnl_max_datasize operand in the system journal service definition
Ci: Value specified in the jnl_cdinterval operand in the system journal service definition
Cg: Value specified in the assurance_count operand in the checkpoint dump service definition