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storage device. This increases performance, but, if a battery-backup cache is not
used, increases the risk of data loss in the event of a power failure.
write-cache mode -- Write-through
A setting of the write-cache mode. When the write-cache mode is set to write
through and the operating system sends data to the controller, the controller writes
the data to a storage device before sending a confirmation to the operating system.
This mode decreases performance, but does not risk data loss.
Appendix B. Glossary 273