Aigor Posted October 23, 2020 Share #1 Posted October 23, 2020 Hi Friends, as far i know BTRFS has data deduplication built in feature, do i have to set some switch to enable? do i need some user space command to enable? Many thanks Quote Link to comment Share on other sites More sharing options...
flyride Posted October 23, 2020 Share #2 Posted October 23, 2020 (edited) It is passively supported via snapshots and the Copy on Write feature. The few times I have seen Synology comment on the matter, other deduplication services are not supported. There are open source utilities that can look for file-level duplicates and submit them in batch to btrfs for deduplication. I have used rmlint successfully, installed via syno-cli synocommunity package. I'm not aware of block-level deduplication that works on Synology btrfs. Note that some of the dedupe utilities have specific btrfs version and kernel version requirements that DSM does not meet. Tread carefully! Edited October 24, 2020 by flyride Quote Link to comment Share on other sites More sharing options...
Balrog Posted October 25, 2020 Share #3 Posted October 25, 2020 I have played around with deduplication and btrfs in the past. Even with good results.But as dedup & encryption is not compatible and also one never does run a defragmentation or the deduplication will be destroyed I deleted my tests.Deduplication is a very interesting feature for me but only if it's supported neat. Quote Link to comment Share on other sites More sharing options...
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