Cache file size of "Cache on device RAM with overflow on hard disk" is growing faster than "Cache on device hard disk"

Cache file size of "Cache on device RAM with overflow on hard disk" is growing faster than "Cache on device hard disk"...

Why cache file size of "Cache on device RAM with overflow on hard disk" is growing faster than "Cache on device hard disk"

Cache Type = "Cache on device hard disk" The block reservation of "Cache on device hard disk" is ONLY 4KB, and it's random I/O. Cache Type = "Cache on device RAM with overflow on hard disk" Since "overflow on hard disk" is vhdx format, the block reservation is 2MB & required for sequential I/O,...

Any Write cache mode which involves the Target Device local HDD reverts to server side caching

When trying to configure the write cache, any selection that involves the local HDD of the target device would fail. Cache on device ram - works Cache on server - works Ram with overflow - fails to server Cache on Device HD - fails to server...