compsize
zfs
| compsize | zfs | |
|---|---|---|
| 8 | 721 | |
| 325 | 10,140 | |
| - | 0.8% | |
| 3.0 | 9.7 | |
| 4 months ago | 2 days ago | |
| C | C | |
| GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
compsize
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BTRFS Transparent Compression
The tool compsize can give you info about the compression state of your data. For example:
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Is anyone else having problems with the zfs AUR packages? Specifically, zfs-dkms?
The obvious example is the Raid5/Raid6 implementation which is officially not recommended for current use; though that's not something I would use anyways. But I've also found that stuff like listing the compression ratio for volumes requires a separate program, unlike zfs where it's built-in.
- compsize: btrfs: find compression type/ratio on a file or set of files
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Space allocation
If you want to diagnose where you think there may be space used up that you don't quite understand, then btrfs fi du and third party tools btdu and compsize are useful.
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Bringing Bcachefs to Linux Mainline
I'm going to add my N=1 anecdata if no one minds:
I've been running full Btrfs on my workstation since December 2021 with 0 issues (kernel 5.10). It survived multiple hard reboots and power offs, Ryzen 5000 CPUs seems to lose power every now and then on Linux (it's a known issue for years now that no one has figured out yet).
Having compression is great. compsize reports I've saved 33GB on my /home subvolume so far (https://github.com/kilobyte/compsize). I don't use snapshots, I just backup the whole thing.
Obviously this doesn't mean that in the future Btrfs won't eat my data, but so far it hasn't and I'm happy.
- Using BTRFS compression on my Steam Deck, defragging and compsize
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Adding options to fstab?
You can also use this tool to find out what the compression ratio of the data is ;).
- ZFS 0.8.6 doesn't boot with 5.10 kernel on Debian Sid
zfs
- OpenZFS 2.2.4 – Linux and FreeBSD – Advanced file system and volume manager
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Ubuntu 24.04 LTS is so buggy you can't install the OS [video]
Be careful if you use ZFS-on-root, make sure not to snapshot bpool or it will brick your system and require a complete reinstall.
https://github.com/openzfs/zfs/issues/13873
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Radxa's SATA HAT makes compact Pi 5 NAS
> The only non-junk PCIe3 option that's even advertised here recently is the overpriced WD Red SN700.
Those WD drives seem to have some real issues, at least with ZFS and btrfs. :(
https://github.com/openzfs/zfs/discussions/14793
- OpenZFS: Fix corruption caused by MMAP flushing problems
- ZFS: Some copied files are still corrupted (chunks replaced by zeros)
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DiskClick: Ever wanted to hear Old Hard drive sounds
IMO the "next fs" is just zfs. They somewhat recently merged RAIDZ expansion feature https://github.com/openzfs/zfs/pull/12225 and make regular improvements. If no file system has what you need today, zfs will probably be the first one to have it "tomorrow," imo.
- OpenZFS bug reports for native encryption
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A data corruption bug in OpenZFS?
https://github.com/openzfs/zfs/issues/15526#issuecomment-181...
> zpool get all tank | grep bclone
> kc3000 bcloneused 442M
> kc3000 bclonesaved 1.42G
> kc3000 bcloneratio 4.30x
> My understanding is this: If the result is 0 for both bcloneused and bclonesaved then it's safe to say that you don't have silent corruption.
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Ask HN: What's your "it's not stupid if it works" story?
A couple years ago, I had an idea for convincing a filesystem to go faster using 2 compression steps instead of one. I couldn't see why it wouldn't work, and I also couldn't convince myself it should.
It seems to have worked out. [1]
[1] - https://github.com/openzfs/zfs/commit/f375b23c026aec00cc9527...
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ZFS Profiling on Arch Linux
https://github.com/openzfs/zfs/issues/7631
This is a long-standing issue with zvols which affects overall system stability, and has no real solution as of yet.
What are some alternatives?
btrfdeck - This repo will get you from using ext4 on your Steam Deck's microSD card, to btrfs.
zstd - Zstandard - Fast real-time compression algorithm
btdu - sampling disk usage profiler for btrfs
7-Zip-zstd - 7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard
duperemove - Tools for deduping file systems
sanoid - These are policy-driven snapshot management and replication tools which use OpenZFS for underlying next-gen storage. (Btrfs support plans are shelved unless and until btrfs becomes reliable.)
archzfs - Package and repository sources for ZFS on Arch Linux
RocksDB - A library that provides an embeddable, persistent key-value store for fast storage.
zfs-dkms-aur-pkg - NOTE: Use this patch at your own risk. Testing a patch for the zfs-dkms Arch Linux AUR package
snapper - Manage filesystem snapshots and allow undo of system modifications
zfsbootmenu - ZFS Bootloader for root-on-ZFS systems with support for snapshots and native full disk encryption
zrepl - One-stop ZFS backup & replication solution