jittygitty

I am seeing too many times that when people ask for 'documentation' on how to configure something, they are instead sent to some matrix chat rooms that are not indexed...

@ahrens Thanks for the reply, I was actually about to start on contracting someone to strace/ftrace (or dtrace :) ) through btrfs, ocfs2, and xfs during dedupe, then analyze their...

@pjd Thanks for your work on BRT. I was hoping you could help offer some guidance and also clarify a couple things. After watching your video "File Cloning with Block...

After watching the video ( https://www.youtube.com/watch?v=hYBgoaQC-vo ) on possible reflinks implementation via new BRT feature (see also https://www.youtube.com/watch?v=AkWVDs5VZIY ), I was bummed out to hear that via that method it...

@ryao If zfs architecture is different in that it requires dealing with pools/datasets not directly with block devices to map file extents, does fiemap have to "know" any of that...

@ryao Many thanks for posting on there and clarifying the misconceptions, I knew the guy was wrong, but I didn't have the technical expertise to prove him wrong. I was...

I should clarify the "reason" that path @ryao mentioned referencing snapshot/clone intrigues me, is because last I heard @pjd said that preserving reflinks over ZFS SEND/RECEIVE would "not be possible"...

@ryao I had read (ashamedly I haven't tested it yet myself) that btrfs can preserve reflinks and deduplication over btrfs send/receive (maybe via -c or -p flag ). It seems...

@mix5003 Yes, I think you are right, it seems BRT is like a "lite" version of the DDT. I'm no expert but I think if you force dedupe on to...

@ryao As far as using fiemap for userland utils like Filefrag and offline dedupe tools etc, what I meant by abstraction was some mechanism like @adilger I see proposed at:...