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SubjectRe: Notes on support for multiple devices for a single filesystem
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On Wed, 2008-12-17 at 22:20 +0100, Kay Sievers wrote:
> On Wed, Dec 17, 2008 at 21:58, Chris Mason <chris.mason@oracle.com> wrote:
> > On Wed, 2008-12-17 at 11:53 -0800, Andrew Morton wrote:
> >
> > There are other bits and pieces like high speed front end caching
> > devices that would be difficult in MD/LVM, but since I don't have that
> > coded yet I suppose they don't really count...
>
> Features like the very nice and useful directory-based snapshots would
> also not be possible with simple block-based multi-devices, right?

At least for btrfs, the snapshotting is independent from the
multi-device code, and you still get snapshotting on single device
filesystems.

-chris




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