Informix/IDS: Checkpoints

A checkpoint is a point in time in the log when a known and consistent state for the database system is established.

A checkpoint can occur in one of these situations:
• When a DBSPACE is added. It’s a blocking checkpoint
• When resource limitations occur. For example, when physical log is 75% full
• Automatic checkpoints (AUTO_CKPTS)

Please note that the fast recovery depends on CKPTINTVL & RTO_SERVER_RESTART parameters.
Cheers!
RK

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