On 03/08/2011 01:05 PM, Wendy Cheng wrote:
On Tue, Mar 08, 2011 at 12:04:25PM -0500, Ric Wheeler wrote:To make this trivial to do for users, I think that it would be really nice to have a two-level wrappers for things like resize, add a volume, shrink, etc. Similar to the way we have mount or fsck invoke file system specific bits. Good idea? Bad idea?So the "resize" is on the filesystem, not the volume ? The "grow" part is probably easy. Unfortunately, the "shrink" may not be easy for some of the filesystems: -- Wendy
I think any "standard" operation would be allowed to fail with "notsupported" effectively. Shrink is definitely a challenge & even when it works, it often has performance implications.
I think that adding support to fsadm might be the easy path forward, but we would need to be able to do at least a handful of more advanced things (add a whole device for example).
Ric