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TIBCO ActiveSpaces® - Enterprise Edition 5.0.0

# Disk Space Used by the Checkpoint Metadata

The amount of disk space used by the checkpoint metadata depends on the rows that are changed, and how often checkpoints are recorded.

For each checkpoint not yet transferred to the mirror grid, the checkpoint metadata has one row for each row changed. For example, if your application repeatedly overwrites the same 100 rows, the checkpoint metadata contains 100 rows for each checkpoint. The size of these rows is around 100 bytes plus the length of the row key. For information about calculating the size of the row key, see the "Sizing Guide" in TIBCO ActiveSpaces® - Enterprise Edition Concepts.

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TIBCO ActiveSpaces® - Enterprise Edition

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