![]() This couldnt be less applicable to hobbyist users. At smaller scale, traditional vdevs and spares remain as useful as they ever were. And on the anecdotal side, I had btrfs corrupt my main disk (single disk configuration, nothing fancy - and no swap file so it wasn't that corruption issue) while doing a kernel build (though in fairness I was running net-next, testing a BPF patch, so it wasn't a mainline kernel). willis936 18 days ago >Distributed RAID vdevs are mostly intended for large storage serversOpenZFS draid design and testing revolved largely around 90-disk systems. Today, were going to focus on arguably the biggest feature OpenZFS 2.1.0 addsthe dRAID vdev topology. Personally while I don't use RAID-Z, I do use ZFS for my homeserver because it has a much better track history and I like it's administration model. rootzfs-lab zpool status raid10 -v pool: raid10 state: DEGRADED status: One or more devices is currently being resilvered. Check to make sure it has been added successfully. So, what is dRAID and why is it so special According to OpenZFS, dRAID is a variant of raidz that provides integrated distributed hot spares which allows for faster resilvering while retaining the benefits of raidz. ![]() rootzfs-lab zpool replace raid10 /dev/sdf. The OpenZFS Project has released version 2.1.3 of what the project calls its 'open-source storage platform' for Linux and FreeBSD. dRAID: A Very Different Type of RAIDZ And then there’s dRAID, which we’re currently working on implementing into Open-E JovianDSS. Not to mention that ZoL allows people to switch to Linux while keeping their ZFS pools. Use the zpool replace command to add the new drive into the pool. ![]() So even if btrfs had no known issues today (which isn't the case) there still would be reasons why someone would pick ZFS. That line of argument simply ignores ZFS's track record (which btrfs categorically cannot match up to) and the fact that ZFS's administrative design is simply different than that of btrfs (I would argue it's better, but others may disagree). I understand that some folks don't want to use ZFS, and that's fine - but every time ZFS comes up on Linux message boards, a large number of people say that ZFS is not needed because btrfs is good enough (and then start saying that ZoL is bad because it's not in mainline, with a whole list of IMHO bad-faith arguments - conveniently ignoring that it wasn't the ZFS developers' decision for ZFS to not be mainlined). And as far as I know, btrfs has nothing analogous to dRAID. See for more information about OpenZFS patches. I'm also not sure if someone has done a comparison between btrfs's RAID and RAID-Z - RAID-Z is different to classical md-style RAID in quite a few ways. This page is updated regularly and shows a list of OpenZFS commits and their status in regard to the ZFS on Linux master branch. ![]() OPENZFS DRAID PATCHMeanwhile, ZFS's RAID-Z has worked for more than 15 years, while your link is to a message saying that "it will take a while" to send a patch series which may fix btrfs's RAID 5/6 support. ![]()
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