08.01.2021 10:56, cedric.dew...@eclipso.eu пишет: > I have done a test where I filled up an entire btrfs raid 1 filesystem as a > normal user. Then I simulated a failing drive. it turned out I was unable to > replace the drive, as raid1 need free space on both drives. See this mail for > details [1]
As explained in this mail, you did not "replace" drive, you added new drive. This is different operation. > > I can understand the technical reasoning behind the requirement of both > drives having some free space. But why does btrfs by default allow a normal, > non root user to completely fill up the drive? Maybe it's a good idea to > reserve some blocks on the filesystem that are only available for the root > user, much like ext4 does that (via tune2fs [-m reserved_blocks_percent] and > [-r reserved_blocks_count]) > > [1] https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg92550.html > > --- > > Take your mailboxes with you. Free, fast and secure Mail & Cloud: > https://www.eclipso.eu - Time to change! > >
