# Changing the write-cache mode on a physical drive

Use this action to enable or disable the write-cache mode setting of a ready physical drive. The write-cache mode determines if the physical drive stores data before or after sending a confirmation to the controller.

Attention: It is possible to lose data if a power outage occurs while using the write-back mode. Consider carefully whether to enable write-back mode on a physical drive. Depending on how you use the system, write-back mode might be undesirable.

1. In the tree, click (ready physical drive).
2. Right-click Change write-cache mode to write back or write through.
3. Click Yes to confirm.

## More information

- Understanding write-cache mode for physical drives

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