Is there a cloud storage provider that provides file handles similarly to CIFS/SMB? We are using Dropbox and we would like to receive a warning when a file is opened by someone else (if there's a conflict it just creates a backup file). We don't like the solution where you manually lock files/folders with an interaction menu that Dropbox Business allows us to do. On the other side, we really enjoy the performance improvement from local caching with Dropbox!

We used to use a NAS via SMB in our local network, which supported this. But with a migration to remote work, this is no longer an option as the bandwidth of our office is not sufficient.


Will File Share in Azure (SMB3 under the hood) work?


Azure File Sync will help with the local “cache” on premises.


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  • Is there a solution for on-device local caching or are all files always residing on the network (every file access a download) ? From what I understand you can deploy an on-premises replication server, but for people that are not necessarily always on-premises that wouldn't work. – omacha May 6 at 8:07
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    Azure File Sync will help with the local “cache” on premises. docs.microsoft.com/en-us/azure/storage/files/… – BaronSamedi1958 May 7 at 6:30

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