On Mon, 2010-06-28 at 05:16 -0700, Gabriele Bulfon wrote: > Yes...they're still running...but being aware that a power failure causing an > unexpected poweroff may make the pool unreadable is a pain.... > > Yes. Patches should be available. > Or adoption may be lowering a lot...
I don't have access to the information, but if this problem is the same one I think it is, then the pool does not become unreadable. Rather, its state after such an event represents a *consistent* state from some point of time *earlier* than that confirmed fsync() (or a write on a file opened with O_SYNC or O_DSYNC). For most users, this is not a critical failing. For users using databases or requiring transactional integrity for data stored on ZFS, then yes, this is a very nasty problem indeed. I suspect that this is the problem I reported earlier in my blog (http://gdamore.blogspot.com) about certain kernels having O_SYNC and O_DSYNC problems. I can't confirm this though, because I don't have access to the SunSolve database to read the report. (This is something I'll have to check into fixing... it seems like my employer ought to have access to that information...) - Garrett _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
