caching L2 storage

[andrewtsubaro]

Hi,

I am using L2 cache on my hdd with the defer-write option. However, I would like that the L2 storage itself is cached, i.e., deferred data are duplicated in memory and are read from memory. Is there a way to achieve this?

[Support]

You can set both L1 (RAM) cache and L2 cache on the HDD. You cannot set cache to L2 storage.

[andrewtsubaro]

Yeah, I figured that part out for myself. Let me put it in a different way: if I use L1 and L2 cache simultaneously on hdd with defer-write, where do the deferred data go - to L1, L2, or both (duplicated)? Can I control this behavior?

[Support]

It will go to L1 first and if L1 is full, L2 will be used. You can set L1 or L2 cache to 100% read only (in their advanced settings - Read/Write space ratio) to turn off the defer-write on L1 or L2 cache.