Linux Storage News Archives
Making Use Of Btrfs 3-Copy/4-Copy Support For RAID1 With Linux 5.5+

With the recently released Linux 5.5 and its new features, one of the prominent changes on the storage front was the Btrfs file-system picking up new "RAID1C3" and "RAID1C4" modes for allowing either three or four copies of RAID1 data across more drives to potentially allow up to three of four drives to fail in a RAID1 array while still being able to recover that data for this file-system with its native RAID capabilities.

11 February 2020 - RAID1C3 + RAID1C4 - 17 Comments
BFQ I/O Scheduler Gets Some Fixes For Linux 5.6

It has been a while since there has been any new developments to report on BFQ, the Budget Fair Queueing I/O scheduler that offers both low-latency and high throughput modes, bandwidth and latency guarantees, and other functionality. With the ongoing Linux 5.6 cycle, BFQ at least has picked up some fixes.

6 February 2020 - Budget Fair Queueing - Add A Comment
Samsung's Better exFAT Driver Gets Revised Ahead Of Mainline Linux Integration

While there has been the initial Microsoft exFAT file-system driver since Linux 5.4, that code is based on a vintage snapshot of prior Samsung code. Samsung engineers meanwhile have been working to upstream a much newer and better off exFAT implementation to replace that existing driver and it looks like it could be ready for Linux 5.6.

20 January 2020 - Samsung exFAT - 37 Comments
Btrfs Async Discard Support Looks To Be Ready For Linux 5.6

After months of work by Facebook engineers, it looks like the new async discard support for Btrfs is ready for the upcoming Linux 5.6 cycle as a win for this Linux file-system on solid-state storage making use of TRIM/DISCARD functionality.

18 January 2020 - Btrfs Async Discard - 4 Comments
Linus Torvalds Doesn't Recommend Using ZFS On Linux

Linux kernel creator Linus Torvalds doesn't recommend using ZFS On Linux at least until Oracle were to re-license the code to make it friendly for mainline inclusion. But even then he doesn't seem turned on by the ZFS features or general performance.

9 January 2020 - No To ZFS - 256 Comments
FSCRYPT's Inline Encryption Support Updated For Possible Inclusion In Linux 5.6

Back in October we reported on work done by Google on FSCRYPT inline encryption support for allowing the Linux file-system encryption framework to handle the encrypt/decrypt more optimally for modern mobile SoCs with inline encryption hardware. It's looking like that work might be ready to go now for Linux 5.6 after missing out on the 5.5 cycle.

24 December 2019 - FSCRYPT - 7 Comments
Oracle Talks Up Recent Features For XFS + Some File-System Improvements On The Horizon

Oracle's had quite the file-system history and looking ahead to 2020 they appear committed to the XFS boat on the Linux front. Oracle retains control over the upstream ZFS file-system and could push for better Linux integration of that file-system plus they formerly employed Btrfs creator Chris Mason during its infancy. But they also employ lead XFS maintainer Darrick Wong and in keeping in-line with Red Hat Enterprise Linux defaults embrace that as their primary file-system for Oracle Linux.

16 December 2019 - XFS 2019 - 20 Comments
GRUB Now Supports Btrfs 3/4-Copy RAID1 Profiles (RAID1C3 / RAID1C4 On Linux 5.5+)

When it comes to the storage/file-system changes with the in-development Linux 5.5 kernel one of the most prominent end-user-facing changes is more robust RAID1 for Btrfs with the ability to have three or four copies of the data rather than just two copies, should data safety be of utmost importance and concerned over the possibility of two disks in an array failing.

7 December 2019 - Btrfs Three Copy / Four Copy RAID - 10 Comments

447 Linux Storage news articles published on Phoronix.