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Comment by dlsspy | Hacker News Reader

My experience with btrfs has been hugely discouraging. It's the rootfs on one of my machines, and just has lots of terrible behavior:

    * it's lost a lot of space - nearly 100GB
    * it causes all kinds of random pauses while running
    * A *clean* reboot spends over an hour in some kind of offline... something

(basically, if I do a clean shutdown and reboot, the system doesn't go into multi-user mode for about one hour fifteen minutes)

I can't believe it's not better.

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Can you uphold above quotes with some more facts please? What Linux distribution are you using? What Kernel Version are you using? What kind of files do you have on that server (Video, Word-Files, Sound-Files, DB, ...?).

Ubuntu 11.04 (GNU/Linux 2.6.38-10-generic x86_64)

It's mostly a (very low-volume) mail and web server. It's got ~200MB of web, about 11GB of "cache" files for a photo app I've got (about 31k files totally 11GB). I do a little bit of low volume S3 log processing on it every hour. My home directory is 2.5GB with about 107k files (that includes dropbox). The IMAP store is approaching 2 decades of mail with about 239k files totaling about 4.4GB of data. /root is a bit under 500MB with duplicity caches and stuff. Less than 300 files there.

I also keep a few snapshots I take every hour. There's a total of 347 snapshots across all the subvolumes (there are three).

    Filesystem            Size  Used Avail Use% Mounted on
    /dev/sda3             142G  102G   37G  74% /
    none                  2.0G  192K  2.0G   1% /dev
    none                  2.0G     0  2.0G   0% /dev/shm
    none                  2.0G   60K  2.0G   1% /var/run
    none                  2.0G     0  2.0G   0% /var/lock
    /dev/sda1             230M   69M  150M  32% /boot

Overall, it's a small atom box that lives a pretty boring life that I figured would have endless hard drive space given my patterns. That does not seem to be the case.

Anything further I can tell you?

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