This is misleading, these error messages might make one think that the 4th drive is bad and has to be replaced, which would reduce the redundancy to the minimum because it's the second drive that's actually bad.
following RFC will solve the misleading part of the problem.. [RFC PATCH] Btrfs: fix fs logging for multi device Thanks, Anand -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html