Storage for Loki across multilple nodes

Hi all,

Currently looking at what would be required to replace a three node ELK cluster with Loki. The three nodes currently have ~ 15TB of local SSD storage in each of them, so in ELK we have a mirror of each index, so should one node fail the data is still available either from the primary or from the replica on another host.

Looking at the docs for Loki I think I want to be looking at bolt-db but can’t seem to get my head around if this then would allow us to recreate the cluster model we currently have. Or should I just get a VM to run Loki, turn the three existing nodes into some kind of clustered object file store that Loki is then configured to use?

We can’t use cloud storage for this, so if someone has a suggestion of any kind I’d be grateful.