driveCacheType

The type of drive cache used by PERSISTENT_1 file systems that are provisioned with HDD storage devices. This parameter is required when StorageType is HDD. When set to READ the file system has an SSD storage cache that is sized to 20% of the file system's storage capacity. This improves the performance for frequently accessed files by caching up to 20% of the total storage capacity.

This parameter is required when StorageType is set to HDD.