sorry for delay in response. the question is a bit unclear, so trying to respond the best I can. LA is a shared multi-tenant service, so we do not expose, by default, which cluster is storing your date. Workspaces are regional, so we do guarantee regional placement/affinity. Our compliance is documented here: https://zcusa.951200.xyz/en-us/azure/azure-monitor/platform/data-security
For large scale deployments (1Tb/day or more) , we now offer dedicated cluster option - you can spin your own LA cluster and place your workspaces on it