Open Resty Shared cache is great and we use it as a cache to store a large volume of key-val data by sharding memory into multiple dictionaries (10 shards with 10GB).
As data grows, we are running out of memory and would like to have persistence storage supported by shared dict which will allow us to lookup data in the local SDD rather than make a call to RDBMS database.
e.g Tarantool supports in-memory cache (Memtx) with vinyl.
