Checkpoints

ActiveSpaces provides the ability to create checkpoints to save the state and data in a data grid at a specific point in time. Checkpoint files can then be used to restore the data grid.

For details about the types of checkpoints, see "Checkpoints Types" in TIBCO ActiveSpaces® Concepts.

Creating a checkpoint fails in the following scenarios:

• A realm service is not reachable.
• A quorum of state keepers is not running.

For more details, see "Checkpoints" in TIBCO ActiveSpaces® Concepts.

Checkpoints on disk use the hard link feature of the file system to save space when multiple checkpoints refer to the same file on disk. Copying a checkpoint to a different file system causes the files in that checkpoint to occupy their full amount of space on the new file system.