# Generating from RocksDB

Old Faithful uses the `radiance` tool from the Firedancer team to provide an interface to the RocksDB Solana ledger archives.

We have forked the project to add the ability to generate a full CAR, you will need to download and build the binaries in order to generate CAR's that are compatible with Old Faithful.

{% embed url="<https://github.com/rpcpool/radiance-triton-faithful/tree/main>" %}

The radiance tool utilizes the RocksDB snapshots generated by [Warehouse](https://github.com/solana-labs/solana-bigtable) nodes. From these snapshots, a CAR file per epoch is generated.

### Filecoin Considerations

If you intend to host this car in Filecoin, you'll need to have it processed by Filecoin tools such as [split-and-commp](https://github.com/rpcpool/go-fil-dataprep/) which will then create the necessary metadata for making the filecoin deal.