RAID controller, as the name implies, is used for controlling a RAID array. It is the device for managing the physical disk drives for maintaining their functions. RAID controllers also work to control the disks in the RAID so that they work as the logical unit. A RAID controller works towards helping the device to act on RAID recovery.
Use either a food dehydrator or an oven, but not a microwave, to dry your mushrooms, as the latter does not offer enough airflow. Dehydrating, especially in a dehydrator that uses a consistent, low temperature, will not affect the nutritional quality of your morels.
Now you can accomplish the drying one of two ways. Dehydrate your tomatoes in the oven or in a food dehydrator. The oven is faster, but will heat up your house. The dehydrator, well first you have to have one. They are great for other things, but if you are just drying tomatoes, it probably isn't worth the cost.