# Enabling and Disabling SSD Guard

Solid state drives (SSDs) are known for their reliability and performance. The SSD Guard technology, which is unique to MegaRAID controller cards, increases the reliability of SSDs by automatically copying data from a drive with potential to fail to a designated hot spare or newly inserted drive. A predictive failure event notification, or S.M.A.R.T command, automatically initiates this rebuild to help preserve the data on an SSD whose health or performance falls below par. For RAID volumes that are using CacheCade software, SSD Guard technology can help make sure that the health and performance of SSDs being used for second tier cache are being monitored in the background.

1. In the Controller dashboard, select More Actions > Enable SSD Guard to enable the SSD Guard feature.
2. To disable the SSD Guard feature, select More Actions > Disable SSD Guard.

Parent topic: Managing Controllers