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SchreibmaierJoachim-9319 asked LeilaKong-MSFT commented

Failed to merge RW diff disk - the chain of the virtuall disk is damaged

Hi, has anybody experience when using cloud cache having the error that the merge operation of the diff disk failed? Attached is a screenshot.

Best Regards,

Joachim86952-cloudcache.png


windows-server-fslogix
cloudcache.png (21.2 KiB)
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LeilaKong-MSFT answered SchreibmaierJoachim-9319 commented

Hello @SchreibmaierJoachim-9319 ,

What's the version of your fslogix?

The following document may be helpful to you:
https://www.meinekleinefarm.net/caution-fslogix-2009-2-9-7621-30127-profiles-wont-logoff-completely/


Best regards,
Leila


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Hello Leila,

thanks for your response - we are using version 2.9.7654.46150. We are observing the problem mainly in combination with cloud cache on notebooks. We manage the include/exclude via gpo and restricted groups (screenshot). There we have no option to update/replace - because this is the only way to control the local groups centrally. Isn't it?

Best Regards,

Joachim87301-2021-04-13-08-37-58-window.png


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LeilaKong-MSFT avatar image
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LeilaKong-MSFT answered

Hello @SchreibmaierJoachim-9319 ,

Will the issue be reproduced if you downgrade to FSLogix 2004 (2.9.7349.30108)? Did all the users have this error?

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SchreibmaierJoachim-9319 answered

Hello Leila,

I can't downgrade to this version - the setup is aborted although the new version is uninstalled. Reinstall of the new version is ok.

I think that is the mentioned bug in the release notes, isn't it?
NOTE: There is a current investigating regarding recent, rare reports of deadlocks in conjunction with Cloud Cache, this would result in an OS lock requiring a restart and loss of all sessions. It is unclear the cause of these issues, including if they are caused by Cloud Cache or FSLogix. These issues have been reported on versions of FSLogix earlier than 2009, but based initial investigation it is possible that the 2009 release would increase the frequency of these issues.

When will be a bugfix version available?

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LeilaKong-MSFT answered

Hello @SchreibmaierJoachim-9319 ,

Is there any update on your side? You may also open a ticket to Microsoft for further professional help: https://support.microsoft.com/en-us/help/4341255/support-for-busines

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SchreibmaierJoachim-9319 answered

Hello Leila,

unfortunately I am not allowed to open support cases. Therefore my hope was that I get the desired information via the forum.

Best Regards,

Joachim

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LeilaKong-MSFT answered

Hello @SchreibmaierJoachim-9319 ,

I just received a confirmation from our Product Team that CCDLocations and ProfileType=3 will cause RW vhd(x) can’t be merged without an exclusive lock if RW machine is signed out first. Our Production Team is trying their best to fix this known issue.

For now, we suggest you to use VHDLocations and ProfileType=3 first, as it is more stable.

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SchreibmaierJoachim-9319 answered LeilaKong-MSFT commented

Hello Leila,

thanks for the information. What about working offline? We can't work with FSLogix when using CloudCache - neither with the 2.9.7349.30108 nor with the new version. Any updates on a timeframe for the new version?

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Hello @SchreibmaierJoachim-9319 ,

We haven’t heard from you in a couple of days. I'm looking forward to your response.
If the reply was helpful, please don't forget to upvote and/or accept as answer, thank you.

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LeilaKong-MSFT avatar image
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LeilaKong-MSFT answered

Hello @SchreibmaierJoachim-9319 ,

This is a known issue for CloudCache which is not stable at current moment, so we recommend you to use VHDLocations. Our product group is still carrying out investigation which may take some time. We'll keep you updated once received feedback from them.

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LeilaKong-MSFT answered

Hello @SchreibmaierJoachim-9319 ,

It will take a while for our product group to fix this known issue, and your patience is highly appreciated.

Please "Accept as Answer" if it helped so it can help others in community looking for help on similar topics. Thanks!




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LeilaKong-MSFT answered

Hello @SchreibmaierJoachim-9319 ,

Our product group has solved this issue and the fix will be released in the next version of FSLogix due May/ June 2021.
Please wait for the release of new FSLogix, thank you.

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