On 9/2/25 16:48, Dan Ritter wrote:
It would be interesting to know the OpenZFS developers' opinion of dedup for backup workloads, including special vdev class vs. dedup vdev class.That is addressed at the end, and, in particular, you should note the bit about reflinks... which for any workload which can use it, provides a rsnapshot-style deduplication mechanism.
Where?The section "I don’t get it. After all this, if it’s good enough, why shouldn’t I enable dedup everywhere?" seems to analyze and discuss why enabling de-duplication on the author's laptop would be a bad idea. This supports the prior statement "dedup is worse than useless on general purpose workloads".
David