Forum Discussion
b26063 - Bug Bash - Enabling the new ReFS Dedup will fail - not enough space on the disk
Tried to follow the instructions on non CSV ReFS drive but ReFSDedup with Dedup or DedupandCompression will fail on non CSV drives with ReFS.
ReFS Version is 3.14, Clustersize 64k
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Karl-WE Actually compression is part of dedup since Server 2012 (without R2). It is one of the reasons why windows server deduplication quite often beats storage appliances. You can even specify which file extension should never be compressed during deduplication. Try
(Get-DedupVolume).NoCompressionFileTypewhich is still missing 7z in its default set...
interesting didn't know. Maybe there are different compressions?
Before 2025 I never seen this could be enable or disabled. It was even in WAC for a short time but broke things and they removed the compression flag.
"Added post process compression with LZ4 & ZSTD, transparent decompression."
Before 2025 I never seen this could be enable or disabled. It was even in WAC for a short time but broke things and they removed the compression flag.
"Added post process compression with LZ4 & ZSTD, transparent decompression."