#bcache

Latest posts tagged with #bcache on Bluesky

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Posts tagged #bcache

Yann Büchau :nixos:

@nobodyinperson.fosstodon.org.ap.brid.gy

2 months ago

Does anyone here have experience with #bcache (not the bcachefs filesystem!) the #Linux kernel's block layer cache?

Apparently it allows you to use SSDs in front of HDDs for performance.

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Saustrup

@saustrup.mstdn.dk.ap.brid.gy

4 months ago

Original post on mstdn.dk

I'm running my own #Kubernetes cluster on bare metal at #Hetzner. I'm going through different iterations of node configurations, and trying to figure out how to squeeze the most out of a hardware configuration with a 10TB+ HDD drive and two 512GB #NVME drives. #bcache has apparently been […]

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linux

@linux.activitypub.awakari.com.ap.brid.gy

9 months ago

The Ongoing BcacheFS Filesystem Stability Controversy In a saga that brings to mind the hype and incidents with ReiserFS, [SavvyNik] takes us through the latest data corruption bug report and developer updates regarding the BcacheFS filesystem in the Linux kernel. Based on the bcache (block cache) cache mechanism in the Linux kernel, its author [Kent Overstreet] developed it into what is now known as BcacheFS, with it being announced in 2015 and subsequently merged into the Linux kernel (6.7) in early 2024. As a modern copy-on-write (COW) filesystem along the lines of ZFS and btfs, it was supposed to compete directly with these filesystems. Despite this, it has become clear that BcacheFS is rather unstable, with frequent and extensive patches being submitted to the point where [Linus Torvalds] in August of last year pushed back against it, as well as expressing regret for merging BcacheFS into mainline Linux. As covered in the video, [Kent] has pushed users reporting issues to upgrade to the latest Linux kernel to get critical fixes, which really reinforces the notion that BcacheFS is at best an experimental Alpha-level filesystem implementation and should probably not be used with important data or systems. Although one can speculate on the reasons for BcacheFS spiraling out of control like this, ultimately if you want a reliable COW filesystem in Linux, you are best off using btrfs or ZFS. Of course, regardless of which filesystem you use, always make multiple backups, test them regularly and stay away from shiny new things on production systems.

The Ongoing BcacheFS Filesystem Stability Controversy In a saga that brings to mind the hype and incidents with ReiserFS, [SavvyNik] takes us through the latest data corruption bug report and devel...

#Linux #Hacks #bcache #BcacheFS #filesystem

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