Persistent L2ARC has been added to OpenZFS : r/zfs
The OptionKey Blog: FreeNAS What is a L2ARC Cache and why is it useful?
Days of a mirror admin: How the L2ARC works
How to add ZIL write and L2ARC read cache SSD devices in FreeNAS - nixCraft
Brendan's blog » L2ARC Screenshots
Is this a good ZFS layout for a new NAS? Can I use three NVMe SSDs like this? I want both durability and speed (hence it will be expensive). I will build