Need assistance with setting the right compression for your Btrfs filesystem on Ubuntu 23.10.
Need assistance with setting the right compression for your Btrfs filesystem on Ubuntu 23.10.
Here are your questions rephrased for clarity:
1. How can I determine the current compression setting of my Btrfs filesystem on an Ubuntu 23.10 machine?
2. What method should I use to change its compression level and apply it system-wide, such as setting it to level 4?
3. How do I modify or insert a line into the fstab file for this purpose?
4. Why is my Zstd compression level showing at a high value? How can I increase it if needed?
5. Can I adjust the Zstd compression algorithm to level 5 in a GUI tool like XArchiver? If so, how would I do that? When I run `man compsize` in the terminal, I see output like "compsize - calculate..." and want to know what compression algorithm is active.
most files, apps, pictures, and a few games are kept in external NAS storage. Compressed videos are all saved there, though I’m not entirely sure if the line you mentioned indicates compression is active. Would you like to confirm that interpretation? For your rig, set the compression to Zstd at level 4 in the fstab file. Here’s how: add a line like `compress=zstd level 4` and ensure it matches your system requirements.
Btrfs offers three compression methods: ZLIB, LZO and ZSTD. LZO compresses faster but lacks levels and is less effective than ZLIB or ZSTD. ZSTD needs btrfs 4.14 or newer and supports levels starting with version 5.1. To determine compatibility, check if you're using a recent version (5.1+) for ZSTD. Refer to the documentation for details: https://btrfs.readthedocs.io/en/latest/Compression.html. Adjust settings by setting "compress=zstd:4" and ensure your mount options match the recommended configuration.
You can find the Btrfs version by running a command like `btrfs version`.
Alternatively, check the system settings or use a tool that lists file system details.
Check the fstab entries for the new compression setting. Verify boot logs to confirm it’s running. Use a tool like `btrfs status` or `dmesg` to validate the configuration.