https://www.funtoo.org/api.php?action=feedcontributions&user=146.171.254.96&feedformat=atomFuntoo - User contributions [en]2024-03-29T05:05:01ZUser contributionsMediaWiki 1.36.2https://www.funtoo.org/index.php?title=Talk:BTRFS_Fun&diff=1334Talk:BTRFS Fun2013-06-04T23:44:29Z<p>146.171.254.96: /* wrong mount command */ new section</p>
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<div>Does btrfs-zero-log work only on a single partition or can it handle BTRFS filesystems spanned across several devices?<br />
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== LVM functionality is only partially replaced by BTRFS ==<br />
<br />
One thing about LVM Volumes in contrast to btrfs sub volumes is quota's.<br />
Every LVM VOlume has a hard quota and if it runs out of space other volumes are not running out of disk space.<br />
This is one functionality that btrfs has not (yet) implemeted.<br />
<br />
For this reasson I stil use LVM, but with btrfs filesystems in the volumes and not with ext4 (anymore).<br />
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== SHow free blocks in btrfs ==<br />
<br />
The other day I had a btrfs FS that was running out of disk space.<br />
But df -h showed that there was still 20% free (subvolumes a presumably not calculated since they are seperately mounted?).<br />
And du -s works the other way around (this also calculated subvolumes and sums, so it counts the unaltered blocks in snapshot sunbvolumes extra).<br />
Is there a way to find out how much free blocks there are available in a btrfs filesystem?<br />
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== wrong mount command ==<br />
<br />
I think<br><br />
<code># mount -o subvolid=0 /mnt</code><br><br />
should be<br> <br />
<code># mount -o subvolid=0 / /mnt</code></div>146.171.254.96