Hi, On Sun, Aug 28, 2016 at 05:42:39AM +0200, Oliver Freyermuth wrote: > I hope this is the correct place to ask, the wiki and manpages did not > help me on these questions. > > BTRFS has gained extended inode refs, skinny metadata and no-holes > quite a while ago and these are now the defaults for new mkfs.btrfs. > btrfstune can activate those features. > > However, I miss two things: > - How do I see on an existing FS which of these features are on? > btrfstune (it seems) can only "set", but not "get" the feature flags. > - Is it worthwhile / recommended / safe to activate those on existing FS? > Are there any steps (e.g. balancing metadata with -musage=0, I'd > guess) needed to make them become active afterwards? > > If there is any documentation on this and I missed it, please RTFM me.
all your questions should be now answered and documentation cross referenced among the relevant manual pages (will be synced to wiki at release time: https://github.com/kdave/btrfs-progs/blob/devel/Documentation/mkfs.btrfs.asciidoc https://github.com/kdave/btrfs-progs/blob/devel/Documentation/btrfstune.asciidoc https://github.com/kdave/btrfs-progs/blob/devel/Documentation/btrfs-man5.asciidoc see sections 'FILESYSTEM FEATURES'. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
