Broadly, yes. Continuous replication BC/DR solutions like Azure Site Recovery are one of our recommend approaches for handling DR of self-hosted Laserfiche systems.
That said, you need to very carefully review the specific infrastructure setup you have for compatibility with ASR. Assuming the current system is on-prem, the failover clustering setup complicates things. For example, here is a March 2024 post from a Microsoft employee saying:
I'm sorry to say, Azure Site Recovery does not support replication for Windows Failover cluster. Only standalone on-prem servers are supported by ASR for DR.
Does on-prem windows cluster nodes supported by ASR for replication - Microsoft Q&A
While it's possible that could have changed since then, I couldn't find anything saying on-prem WSFCs were supported today with a quick internet search. The customer may have to choose between having the failover clusters or ASR.
Personally, I'd choose ASR in most scenarios because:
- Virtualization-level HA can provide most of the same benefits as local Windows Server Failover Clustering with lower complexity
- The scenarios a continuous replication BCDR solution protects against are generally higher severity and risk and thus higher value to cover than the HA of WSFC, even more so if virtualization-level HA is in place
You also need to think very carefully about how you'll handle replication of all data sources: VMs, any separate file storage, and SQL databases, so that during recovery you can keep everything in sync. Especially the SQL databases: Set up disaster recovery for SQL Server with Azure Site Recovery - Azure Site Recovery | Microsoft Learn
Hope that's helpful.
Best,
Sam