On Thursday, October 23, 2003, at 10:42  AM, Greywolf wrote:

> I was going to ask, "this is snapshotting, not journaling, right?", but
> then it occurred to me that if we're going to snapshot the filesystem,
> wouldn't a way be to freeze write access, queue up the writes in a
> journal, dump off the snapshot to wherever, release the access, and
> then keep going?  That's journaling, effectively, unless I'm sitting
> in left field waiting for the White Sox to come up to bat again (which
> is entirely possible).

Generally, only metadata writes are journaled, not file data.

         -- Jason R. Thorpe <thorpej@wasabisystems.com>