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DFS Namespace Setup with Azure File Sync RRS feed

  • Question

  • Hi All,

       We have two DFS-N servers in our data centres.( on prem)  Users are accessing using \\domainname.com\corpdata\sales , It  , Marketing etc etc..

      1. If we use File Sync and storage tiring , can replicate data to cloud and reduce the on prem server storage and access fast. is this correct?

       2. If one of the on prem server dies how do we restore quickly?

      3. can we setup two servers in Azure VM and setup DFS as on prem.  Can we setup users access  same as before? 

      

    As

     

       

    Friday, December 13, 2019 6:01 AM

All replies

  • DFS Namespaces (DFS-N): Azure File Sync is fully supported on DFS-N servers. You can install the Azure File Sync agent on one or more DFS-N members to sync data between the server endpoints and the cloud endpoint. For more information, see DFS Namespaces overview.

    DFS Replication (DFS-R): Since DFS-R and Azure File Sync are both replication solutions, in most cases, we recommend replacing DFS-R with Azure File Sync. There are however several scenarios where you would want to use DFS-R and Azure File Sync together:

    • You are migrating from a DFS-R deployment to an Azure File Sync deployment. For more information, see Migrate a DFS Replication (DFS-R) deployment to Azure File Sync.
    • Not every on-premises server which needs a copy of your file data can be connected directly to the internet.
    • Branch servers consolidate data onto a single hub server, for which you would like to use Azure File Sync.

    For Azure File Sync and DFS-R to work side-by-side:

    1. Azure File Sync cloud tiering must be disabled on volumes with DFS-R replicated folders.
    2. Server endpoints should not be configured on DFS-R read-only replication folders.

    For more information, see DFS Replication overview.

    Below is our comment on your ask.

    1. If we use File Sync and storage tiring, can replicate data to cloud and reduce the on prem server storage and access fast. is this correct? YES

    Cloud tiering may now be enabled on any server endpoint as desired.

     Important

    Cloud tiering is not supported for server endpoints on the Windows system volumes, and only files greater than 64 KiB in size can be tiered to Azure Files.

    Azure File Sync does not support tiering files smaller than 64 KiB as the performance overhead of tiering and recalling such small files would outweigh the space savings.

    To recall files that have been tiered, the network bandwidth should be at least 1 Mbps. If network bandwidth is less than 1 Mbps, files may fail to recall with a timeout error.

    Well, you can replicate it to Azure. Also, you can't have more than 64 data disks for a vm, so that's about ~63.9tb of data for a single VM maximum.

       2. If one of the on prem server dies how do we restore quickly?

    Like antivirus solutions, backup solutions might cause the recall of tiered files. We recommend using a cloud backup solution to back up the Azure file share instead of an on-premises backup product.

    If you are using an on-premises backup solution, backups should be performed on a server in the sync group which has cloud tiering disabled. When performing a restore, use the volume-level or file-level restore options. Files restored using the file-level restore option will be synced to all endpoints in the sync group and existing files will be replaced with the version restored from backup. Volume-level restores will not replace newer file versions in the Azure file share or other server endpoints.

    You can add an Azure Backup and have a Cloud Backup of all your files.

    Important Points

    • It can generally take up to 15 days from the time of deletion for the storage service to perform garbage collection, so storage accounts recovery may not be recovered with an SLA.
    • Microsoft Support will try to recover the Container/Account on a best-effort basis and cannot guarantee the recovery.
    • 3.  can we setup two servers in Azure VM and setup DFS as on prem.  Can we setup users access same as before? 

    A sync group defines the sync topology for a set of files. Endpoints within a sync group are kept in sync with each other. A sync group must contain one cloud endpoint, which represents an Azure file share and one or more server endpoints. A server endpoint represents a path on a registered server. A server can have server endpoints in multiple sync groups. You can create as many sync groups as you need to appropriately describe your desired sync topology.

    A cloud endpoint is a pointer to an Azure file share. All server endpoints will sync with a cloud endpoint, making the cloud endpoint the hub. The storage account for the Azure file share must be located in the same region as the Storage Sync Service. The entirety of the Azure file share will be synced, with one exception: A special folder, comparable to the hidden "System Volume Information" folder on an NTFS volume, will be provisioned. This directory is called ".SystemShareInformation". It contains important sync metadata that will not sync to other endpoints. Do not use or delete it!

    You can make changes to any cloud endpoint or server endpoint in the sync group and have your files synced to the other endpoints in the sync group. If you make a change to the cloud endpoint (Azure file share) directly, changes first need to be discovered by an Azure File Sync change detection job. A change detection job is initiated for a cloud endpoint only once every 24 hours. For more information, see Azure Files frequently asked questions.

    You could read these ones : - http://azurecorner.com/high-available-file-share-in-windows-azure-using-dfs/

    Using DFS Replication on a virtual machine in Azure has been tested with Windows Server; however, there are some limitations and requirements that you must follow.user 

    Hope this helps! 

    Kindly let us know if the above helps or you need further assistance on this issue.
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    Friday, December 13, 2019 10:02 AM
  • Following up to see if the above suggestion was helpful. And, if you have any further query do let us know.

     Just checking in to see if the above answer helped. If this answers your query, do click “Mark as Answer” and Up-Vote for the same, which might be beneficial to other community members reading this thread. And, if you have any further query do let us know.
    Monday, December 16, 2019 9:28 AM
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    Monday, December 23, 2019 1:38 PM
  • @AUSSUPPORT Just checking in to see if the above answer helped. If this answers your query, do click “Mark as Answer” and Up-Vote for the same, which might be beneficial to other community members reading this thread. And, if you have any further query do let us know.

    Thursday, January 2, 2020 5:55 AM