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bcachefs is the near future for Linux here. https://bcachefs.org/ https://bcachefs.org/

by KyleSanderson 3y ago

brunoqc 3y ago
Any tldr about why we should be looking forward to this? Any cool things?
- KyleSanderson 3y ago
  Erasure Coding when it lands should be pretty solid. Until then per-directory data replicas is the killer feature for me (Music has 3, Documents has 5, Downloads has 1). Something to be very excited about with full compression and encryption.
  - brunoqc 3y ago
    Nice, thanks!
  - vladvasiliu 3y ago
    You can do that with ZFS at the cost of defining separate filesystems per directory. I don't use multiple replicas, but I use that to tailor my backups per directory. ~/documents is snapshotted and backed up on the regular, with long-lived snapshots. Code is snapshotted regularly, but snapshots don't live too long, and they're not shipped to a different drive. I don't care for ~/tmp so no snapshots. --- edit: the cost, besides having to actually create the file systems, is that moving data between them isn't instant.
    - philkrylov 3y ago
      > the cost, besides having to actually create the file systems, is that moving data between them isn't instant. No more the case after block cloning support goes production: https://github.com/openzfs/zfs/pull/13392 https://github.com/openzfs/zfs/pull/13392
ac29 3y ago
Near future? Its been in development for 7 years and still hasnt been accepted upstream (an upstreaming effort is in progress, though).
- KyleSanderson 3y ago
  It's just silliness (attitudes, versus technical merit) blocking it now. The only thing stopping it is if something happens to Kent. https://www.phoronix.com/news/Linux-Torvalds-Bcachefs-Review https://www.phoronix.com/news/Linux-Torvalds-Bcachefs-Review
arjvik 3y ago
What does bcachefs do better than BTRFS or ZFS?
- amarshall 3y ago
  Than both? Tiered storage. Than btrfs? Hopefully parity RAID, and performance. Than ZFS? Being GPL compliant, so viable for being in-tree in the Kernel. (list most likely incomplete)

bcachefs is the near future for Linux here. https://bcachefs.org/ https://bcachefs.org/

brunoqc 3y ago

Any tldr about why we should be looking forward to this? Any cool things?

KyleSanderson 3y ago
Erasure Coding when it lands should be pretty solid. Until then per-directory data replicas is the killer feature for me (Music has 3, Documents has 5, Downloads has 1). Something to be very excited about with full compression and encryption.
- brunoqc 3y ago
  Nice, thanks!
- vladvasiliu 3y ago
  You can do that with ZFS at the cost of defining separate filesystems per directory. I don't use multiple replicas, but I use that to tailor my backups per directory. ~/documents is snapshotted and backed up on the regular, with long-lived snapshots. Code is snapshotted regularly, but snapshots don't live too long, and they're not shipped to a different drive. I don't care for ~/tmp so no snapshots. --- edit: the cost, besides having to actually create the file systems, is that moving data between them isn't instant.
  - philkrylov 3y ago
    > the cost, besides having to actually create the file systems, is that moving data between them isn't instant. No more the case after block cloning support goes production: https://github.com/openzfs/zfs/pull/13392 https://github.com/openzfs/zfs/pull/13392

ac29 3y ago

Near future? Its been in development for 7 years and still hasnt been accepted upstream (an upstreaming effort is in progress, though).

KyleSanderson 3y ago
It's just silliness (attitudes, versus technical merit) blocking it now. The only thing stopping it is if something happens to Kent. https://www.phoronix.com/news/Linux-Torvalds-Bcachefs-Review https://www.phoronix.com/news/Linux-Torvalds-Bcachefs-Review

arjvik 3y ago

What does bcachefs do better than BTRFS or ZFS?

amarshall 3y ago
Than both? Tiered storage. Than btrfs? Hopefully parity RAID, and performance. Than ZFS? Being GPL compliant, so viable for being in-tree in the Kernel. (list most likely incomplete)