11–20 of 231 posts
Wonder if this will make it into Synology DSM 7.2. Seems unlikely based on the timing.
Do/can they downstream some of the changes without changing the Kernel version?
Maybe I'm just cynical but I think the ship has sailed for BTRFS RAID 5/6. It's now part of the global mindshare that BTRFS RAID 5/6 == data loss, no one wants to be the guinea pig that proves it works. Better to direct resources towards bcachefs or ZFS IMO.
As much as I want to see a wide use of bcachefs, it's still years away. As someone who actually wants to store data - why would you direct resources to bcachefs which is known experimental, rather than btrfs which plainly documented raid5 as not ready and now may decide to change it to ready... if it is? (I'm donating to bcachefs patreon, but commenting from the PoV of someone choosing a solution today)
I wonder how this compares to just using mdadm block device level raid5 or raid6. And then a normal filesystem on top.
Maybe I'm just cynical but I think the ship has sailed for BTRFS RAID 5/6. It's now part of the global mindshare that BTRFS RAID 5/6 == data loss, no one wants to be the guinea pig that proves it works. Better to direct resources towards bcachefs or ZFS IMO.
Ideally we'd be working based on actual information rather than global mindshare. There will be guinea pigs to test it. There are already quite a few people running it despite the warnings. As much as I want to see a wide use of bcachefs, it's still years away. As someone who actually wants to store data - why would you direct resources to bcachefs which is known experimental, rather than btrfs which plainly document…
Glad to see Btrfs getting continual updates. It's my favorite filesystem for my personal machines (work and home PCs). The feature set is just awesome. I just hope it doesn't get completely abandoned as its development seems to have slowed significantly. The only thing it's missing before I consider it full-featured is stable RAID 5/6. But it looks like that hasn't been forgotten.
I've been running BTRFS RAID6 since 2016 and have only had one issue (arch kernel needed to be rolled back) and never suffered anything catastrophic. It's perfectly happy humming along with a 15x8TB raid array.
I wonder how this compares to just using mdadm block device level raid5 or raid6. And then a normal filesystem on top.
The flexibility of software RAID is nice that you can mix and match hard drive manufacturers and generally have zero issues. For hardware RAID, I've always been told to stick to one drive family from one manufacturer and not to mix and match.
It has gems such as:
* It won't boot on a degraded array by default, requiring manual action to mount it
* It won't complain if one of the disks is stale
* It won't resilver automatically if a disk is re-added to the array
I think the first is the killer. RAID is a High Availability measure. Your system is not Available if it fails to boot.
I wonder how this compares to just using mdadm block device level raid5 or raid6. And then a normal filesystem on top.
The flexibility of software RAID is nice that you can mix and match hard drive manufacturers and generally have zero issues. For hardware RAID, I've always been told to stick to one drive family from one manufacturer and not to mix and match.