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I am having issues with snapshots merging on my hyper-v cluster.
When merging occurs even for snapshots that are 1gb or slightly larger it can take up to 6 hours just to complete merging.
I am using Qnap storage for my server 2019 cluster.
This is an example of merges that have been running almost 8 hours
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Hello
Thank you for your question and reaching out. I can understand you are having query\issues related to Hyper-V taking time to merge.
Your bottleneck will be disc IO, which takes as long as it does to merge data from a snapshot back into the primary VM.
The size of the snapshot, the kind of RAID set employed, and the drives all play a part.
--If the reply is helpful, please Upvote and Accept as answer--
You're 100% correct. I did test the merging on flash storage and it's barely visible merge times.
Thank you.
