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Azure File Sync - Tiering, Thumbnails, and Network Shares RRS feed

  • Question

  • Tiered files display thumbnails when looking at then on the server they're sync with directly, but not when looking at them over a network share.

    No-tiered files display thumbnails normally.

    Any ideas?

    This is causing massive pain for our staff who work with images all day, most of the files are used very infrequently but are also very large so not being able to see thumbnails to select the right image is a very big problem.

    Friday, November 8, 2019 9:31 AM

Answers

  • @Kardrath Apologies for the delay in responding here! 

    Is there anyway to automate downloading the files, updating the thumbnail file so they're visible over network shares, then re-offlining the files?

    No automated way for now.

    If you wish you may leave your feedback here All the feedback you share in these forums will be monitored and reviewed by the Microsoft engineering teams responsible for building Azure.

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    Tuesday, November 26, 2019 4:58 PM
    Moderator

All replies

  • @Kardrath Can you share the screenshot and May I know those are media thumbnails? 

    Just for better understanding, When the staff try to launch the same thumbnails in Storage Explorer are they facing the same issue? 

    Friday, November 8, 2019 12:18 PM
    Moderator
  • Hi Sumanth,

    Here's a screenshot.

    As you can see files which aren't tiered are displaying the thumbnails correctly, but the tiered files aren't. File types are a variety of image types, but mostly PNG and JPG files.

    Staff don't have access to Storage Explorer, we're using the Auzre File Sync solution to cache the recently accessed files to a local file server.

    Friday, November 8, 2019 2:00 PM
  •  Has this always been the case or did it break recently? We're just going down this road, started a initial sync & see new AFS client 8.0 is released. This would be problem for us as well.
    • Edited by Brett F Sunday, November 10, 2019 7:12 PM
    Sunday, November 10, 2019 6:27 PM
  • Initial testing looked OK, but as the pictures directory I happened to be using for testing was my own OneDrive Pictures area that had been copied to a test server for the initial sync so it's possible that something else was going on to make it look like it was working.

    As far as I can tell it's never worked for any of the live data syncing multiple shares with both a new Server 2019 end point downloading fresh (for it) shares and a 2016 server that an original data source. 

    Monday, November 11, 2019 11:55 AM
  • @Kardrath  Firstly, apologies for the delay in responding here.

    This behavior (thumbnails missing for tiered files) is expected. The thumbnail cache feature in Windows intentionally skips reading files with the offline attribute because reading the files would cause them to be downloaded (recalled).

    This blog explains the behavior in more detail: https://blogs.msdn.microsoft.com/oldnewthing/20170503-00/?p=96105

    Hope this helps! 

    Kindly let us know if the above helps or you need further assistance on this issue.
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    Do click on "Mark as Answer" and Upvote on the post that helps you, this can be beneficial to other community members.

    Friday, November 15, 2019 5:01 PM
    Moderator
  • Hi Sumanth,

    That's a real pity and massively reduces the utility of the solution for us. Around 1/3rd of our data volume is image files of various types. 

    If that's the case though, why can I see thumbnails for cached files when I RDP directly to the server?

    Monday, November 18, 2019 8:49 AM
  •  @Kardrath I suspect the file was in the thumbnail cache on the server before it was tiered. Also, if the file is downloaded locally (offline attribute is not set), the thumbnail will show for the file.

    Kindly let us know if the above helps or you need further assistance on this issue.
    ------------------------------------------------------------------------------------------

    Do click on "Mark as Answer" and Upvote on the post that helps you, this can be beneficial to other community members.

    Tuesday, November 19, 2019 2:28 AM
    Moderator
  • Is there anyway to automate downloading the files, updating the thumbnail file so they're visible over network shares, then re-offlining the files?

    I can download the files easily enough, but I'm not sure what triggers the thumbnails to be updated, or how to ensure that the offlining only occurs once the thumbnail is updated.

    Tuesday, November 19, 2019 2:11 PM
  • @Kardrath Apologies for the delay in responding here! 

    Is there anyway to automate downloading the files, updating the thumbnail file so they're visible over network shares, then re-offlining the files?

    No automated way for now.

    If you wish you may leave your feedback here All the feedback you share in these forums will be monitored and reviewed by the Microsoft engineering teams responsible for building Azure.

    ------------------------------------------------------------------------------------------

    Do click on "Mark as Answer" and Upvote on the post that helps you, this can be beneficial to other community members.


    Tuesday, November 26, 2019 4:58 PM
    Moderator
  • Is there any update on the issue?

    If the suggested answer helped for your issue, do click on "Mark as Answer" and “Vote as Helpful” on the post that helps you, this can be beneficial to other community members.


    Wednesday, December 4, 2019 5:17 AM
    Moderator