Azure file sync and failover cluster for file shares

Question

Azure file sync and failover cluster for file shares

Leif Johansson 6

I read that Failover clustering is supported for Azure File Sync. https://learn.microsoft.com/en-us/azure/storage/files/storage-sync-files-planning#failover-clustering
But does anyone have a guide how to set it up?
How we do with shared storage in Azure?

4 answers

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Answer 1

deherman-MSFT 38,021 Microsoft Employee Moderator

@Leif Johansson
For setting up a file server failover cluster I would refer you to the Windows Server documentation. For setup on the Azure File Sync side, the instructions in the Deploy Azure File Sync documentation apply to both single servers and clusters.

Hope this helps. Let us know if you have further questions or issues that are not covered in the documentation and we will be happy to help.

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Barrie White 1 Reputation point

2021-03-20T20:33:55.897+00:00

Hi,

We've followed the documentation for both parts. Our Windows Cluster appears to be working as expected (passes cluster validation). When trying to creaye the server endpoint we only have the option to select the CNO as the endpoint and this constantly fails with the error "Server Health resource cannon be found"

Code: MgmtNotFound

Should the endpoint be the CNO? Or should it not be the file server name created under the role on the cluster?

Any help appreciated
SenhorDolas 1,326 Reputation points

2021-12-16T17:12:24.927+00:00

@Barrie White

You sorted this?

I am also trying to create a FCS in Azure using Shared Disks...
Barrie white 11 Reputation points

2021-12-16T19:09:09.807+00:00

Unfortunately not. After working with Microsoft, they established that there was a bug and this did not work.

It should allow you to chose a cluster node when selecting the endpoint, but it only referred to the Cluster name Object.

We ended up having to run a single node, then having DFS setup to make the cloud endpoint the second server location for storage. We then disabled this by default, and have a runbook to monitor the failure of the primary node to enable to secondary (cloud) endpoint.

I must admit, this was back in march however, and I've not done any further research since, to see if they resolved this issue

Answer 2

Iliya Iliev 21

It looks when you add all server from the cluster group SyncService is working fine now.
Please, check and confirm. I was worried because of your post, but my service looks fine.
Cluster is visible into registered servers section and below the cluster my nodes are online.
In the Sync Groups I can see that cluster is healthy and synchronizing.

regards,
Iliya

Answer 3

SenhorDolas 1,326

@IliaKrasimirov-3663
Sorry but what is SyncService?

Iliya Iliev 21 Reputation points

2022-01-22T14:28:32.363+00:00

@SenhorDolas

This question: Azure file sync and failover cluster for file shares

https://learn.microsoft.com/en-us/azure/storage/file-sync/file-sync-introduction

Check the link provided, by me.
Basically there was an issue when you adding clustered server endpoint to sync service, now it looks MSFT fixed that bug.

Once you install sync agent on both cluster node and add them to the sync service, if one of the node failover to second node, sync service replication continue to work without any issue.
You can monitor your replication in Sync group view.

Answer 4

@IliaKrasimirov-3663
I did not manage to have that working.
The scenario I followed is to setup 2 node failover cluster 2019 with file server role for general use on-premises. The purpose is to sync its file shares to azure with azure file sync. The disk used for file server role is added as csv volume. When adding as server endpoints both servers, file server cluster name is not presented in azure just failover cluster name.
If I remove the role and have that data disk as cluster disk (available storage) then azure file sync works by defining failover cluster name and local volume path. However as you understand users could not access cluster volume via smb and cluster name .
Any help appreciated.

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Azure file sync and failover cluster for file shares

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