zfs VS zfs

> The only non-junk PCIe3 option that's even advertised here recently is the overpriced WD Red SN700.

Those WD drives seem to have some real issues, at least with ZFS and btrfs. :(

https://github.com/openzfs/zfs/discussions/14793

IMO the "next fs" is just zfs. They somewhat recently merged RAIDZ expansion feature https://github.com/openzfs/zfs/pull/12225 and make regular improvements. If no file system has what you need today, zfs will probably be the first one to have it "tomorrow," imo.

https://github.com/openzfs/zfs/issues/15526#issuecomment-181...

> zpool get all tank | grep bclone

> kc3000 bcloneused 442M

> kc3000 bclonesaved 1.42G

> kc3000 bcloneratio 4.30x

> My understanding is this: If the result is 0 for both bcloneused and bclonesaved then it's safe to say that you don't have silent corruption.

A couple years ago, I had an idea for convincing a filesystem to go faster using 2 compression steps instead of one. I couldn't see why it wouldn't work, and I also couldn't convince myself it should.

It seems to have worked out. [1]

[1] - https://github.com/openzfs/zfs/commit/f375b23c026aec00cc9527...

https://github.com/openzfs/zfs/issues/7631

This is a long-standing issue with zvols which affects overall system stability, and has no real solution as of yet.

TIL. Thank you! https://github.com/openzfs/zfs/pull/15022

Difference may be significant, yes https://github.com/openzfs/zfs/pull/14243

https://openzfsonosx.org is a great starting place for general ZFS on Mac stuff.

I am imaging the following simple situation. I am using open ZFS on macOS (OpenZFS on OS X), and I have created a zpool with a single external USB drive. What command should I run when the drive is accidentally disconnected without properly exporting the pool?

This is completely wrong. ZFS works very well via O3X [0]. I ran my home folder off of ZFS on various Mac Pros for ~11 years. ZFS works well in Linux and FreeBSD as well.

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0: https://openzfsonosx.org/

This might be able to read the drive https://openzfsonosx.org/ But I don't know if Time Machine will jive with it.

After dabbling with early stuff from the sadly scrapped Apple effort, I started my full time Mac ZFS journey in 2011 with the then Z-410, which then became ZEVO which was 10.8 only, and then staying on that (and in turn 10.8 doho) on a Mac Pro 3,1 for a solid 4 years or so. I was really sad when that effort didn't pan out and the company got acquired and then the whole deal was killed, but O3X revived the torch and I moved directly onto that. I've carried my pool forward continuously the whole way, with snapshots and everything, all data scrubbed and known good with no more data rot. It's a damn shame events (software patents) conspired to keep that from becoming a universal native fs, but it's still a wonderful thing and Lundman's amazing consistent efforts have been fantastic. The main site at https://openzfsonosx.org/ has decently active forums for something niche.

Without Apple on board or a much bigger effort ZFS on the Mac will probably always have some real limitations particularly with the GUI. For one of my desktop systems I've migrated to running my home and data folders as HFS or APFS formatted iSCSI targets, so it's still on ZFS underneath but appears native to macOS (and that also means that the effective death of towers isn't a limit on storage). But this remains an incredible project IMO.

Also for anyone who wants some limited GUI interaction capability, there is a small project called ZetaWatch [0] which will put some ZFS control into a menubar widget.

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0: https://github.com/cbreak-black/ZetaWatch/

OpenZFS is available for MacOS and it's about as rock solid as you get in a file system. As a bonus, if you someday need to migrate the dataset to a server, you'll be able to import the zfs pool pretty easily.

Check out https://openzfsonosx.org/

Site ZFS on OSX seems down for the last few days...

>such as ZFS

FWIW, ZFS has actually been available on macOS for a long time in various iterations (MacZFS, Z-410/ZEVO, and now OpenZFS [0]). I ran it for around 11 years on a number of systems with almost all of my data on it (home folder, applications, /opt for MacPorts etc) and it was a tank. Fun project and well worth checking out. I'll always regret the various factors that meant Apple didn't adopt it as their native FS.

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0: https://openzfsonosx.org/