Is it good idea to use same disk as L2 cache?

[VarunAgw]

I use Primocache on my OS drive (It's pcie nvme SSD).

I have configured L1 cache.

Does it make sense to use same drive as L2 cache too? Will it speed up the boot or search or anything else?

I also have another SSD (slightly slower this OS SSD). Does it make sense to use it as L2 cache?

[Support]

No. L2 is designed to use fast drives to speed up slow drives. Using a slow drive as L2 will slow down the target drive.