Scenario: An application that renders locally and creates a large number of temporary files on the local drive is installed on the Desktop OS machines. A Citrix Administrator creates a vDisk in…

Cache on server routes all write I/O across the network to the Provisioning Server, introducing network latency and server overhead that degrades performance for high-volume local write workloads.

Cache on device hard drive writes directly to the local disk on every operation, which is considerably slower than RAM-based caching for workloads producing a high volume of temporary files.

Cache on device hard drive encrypted adds encryption/decryption overhead on top of disk I/O, making it the slowest option for high-frequency local write operations.

Cache in device RAM with overflow on hard disk writes data to RAM first, which is significantly faster than any disk-based I/O, directly benefiting applications that create large numbers of temporary files. When RAM capacity is reached, overflow is written to the local hard disk, preventing data loss while still taking maximum advantage of fast RAM for the most active writes.