On Mon, Aug 9, 2010 at 4:58 AM, fibreraid@xxxxxxxxx <fibreraid@xxxxxxxxx> wrote: > Hi Neil, > > I may have spoken a bit too soon. It seems that while the md's are > coming up successfully, on occasion, hot-spares are not coming up > associated with their proper md's. As a result, what was a RAID 5 md > with one hot-spare will on occasion come up as a RAID 5 md with no > hot-spare. > > Any ideas on this one? > Is this new behavior only seen with 3.1.3, i.e when it worked with 3.1.2 did the hot spares always arrive correctly? I suspect this is a result of the new behavior of -I to not add devices to a running array without the -R parameter, but you don't want to make this the default for udev otherwise your arrays will always come up degraded. We could allow disks to be added to active non-degraded arrays, but that still has the possibility of letting a stale device take the place of a fresh hot spare (the whole point of changing the behavior in the first place). So as far as I can see we need to query the other disks in the active array and permit the disk to be re-added to an active array when it is demonstrably a hot spare (or -R is specified). -- Dan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
