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Question
Wednesday, May 8, 2019 10:37 PM
I started Garbage Collection on a volume with de-duplication enabled and 30 hours later I'm still at 0% with no file space being freed. I can see that there is a process running by looking up the process ID; however, so far there does not seem to be any progress. This is on a 1.8 TB drive. I feel like 30 hours in the progress should have moved from 0% and that some space should have been freed. Any ideas? Is this a common problem?
All replies (5)
Thursday, May 9, 2019 2:42 AM
Hi ，
Please first check deduplication events to see if there are something related for us to troubleshooting.
To view deduplication events, in File Explorer, navigate to Applications and Services Logs, click Microsoft, click Windows, and then click Deduplication.
Run the get-dedup* commands to see more details and upload the screenshot.
Note: Please remember to hide the sensitive information as our forum is an opened platform.
You could refer to the article below to help you troubleshoot the issue:
Monitor and Report for Data Deduplication
Best Regards,
Candy
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Thursday, May 9, 2019 1:26 PM
Oddly, after 40+ hours of run time, the GC job finally began to free space. It still reports as 0% complete but it has freed up 200 GB of space. I'm guessing this is just a flaw in the progress reporting mechanism?
Friday, May 10, 2019 3:47 AM
Hi ,
It seems that deduplication is working and has identified the files but the stats are not being populated.
It seems like a product limitation, as you've seen from the following thread:
Trying to Unoptimize a Dedup Volume - Progress stays at 0%
UserVoice is where you can provide feedback to the Microsoft Product Groups who are now monitoring these forums.
You could also post the feedback in our UserVoice, here is the link:
https://windowsserver.uservoice.com/forums/295047-general-feedback
After posting your idea, it will have one vote by default. If you want it to have more votes, then you could share this blog posting with your IT professionals, have them sign up and vote for your idea.
If it truly is a good idea then other people will see your idea and they will vote for this idea.
Best Regards,
Candy
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Monday, May 13, 2019 2:30 AM
Hi ，
You could mark the useful reply as answer if you want to end this thread up.
Best Regards,
Candy
Please remember to mark the replies as an answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected]
Wednesday, May 15, 2019 9:47 AM
Hi ，
Just want to confirm the current situations.
Please feel free to let us know if you need further assistance.
Best Regards,
Candy
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If you have feedback for TechNet Subscriber Support, contact [email protected]