4 ms·
So many flaws. I want to see the author repeat this across 100TB of random data from multiple clients. He/she/whatever will quickly realize why this feature exi
by eek2121 2y ago
So many flaws. I want to see the author repeat this across 100TB of random data from multiple clients. He/she/whatever will quickly realize why this feature exists. One scenario I am aware of that uses another filesystem in a cloud setup saved 43% of disk space by using dedupe.
No, you won't save much on a client system. That isn't what the feature is made for.
- hinkley 2y agoWhen ZFS first came out I had visions of it being a turnkey RAID array replacement for nontechnical users. Pop out the oldest disk, pop in a new (larger one), wait for the pretty lights to change color. Done. It is very clear that consumer was never a priority, and so I wonder what the venn diagram is of 'client system' and 'zfs filesystem'. Not that big right?
- UltraSane 2y agoMy reaction also. Dedupe is a must have for when you are storing hundreds of VMs. you WILL save so much data and inline dedupe will save a lot of write IO.
- XorNot 2y agoIt's an odd notion in the age of containers where dedupe is like, one of the core things we do (but stupidly: amongst dissimilar images there's definitely more identical files then different ones).
- edelbitter 2y agoI tried two of the most non-random archives I had and was disappointed just as the author. For mail archives, I got 10%. For entire filesystems, I got.. just as much as with any other COW. Because indeed, I duplicate them only once. Later shared blocks are all over the place.
- doublepg23 2y agoI assuming the author is aware why the feature exists since they state in the second sentence they funded the improvement over the course of two years?