On 02/21/2017 08:12 PM, George Rapp wrote: > Before I proceed for real, does clearing the badblocks log and > assembling the array seem like my best option? Yes. And consider disabling badblocks on all of your arrays. The badblocks feature does nothing but guarantee that errors encountered on a device become uncorrectable, even if the cause of the error was a transient communications or power problem, not a true media flaw. Bad block tracking at the OS level is appropriate for ancient MFM and RLL devices that lack modern firmware, or similar low-level devices. And since the MD raid bad block tracking feature does *not* provide redirects to usable spare sectors, the feature is useless for such devices, too. MD raid currently does *nothing* when a badblock entry reduces the redundancy available for a particular sector in an array. The badblocks feature is incomplete, has no upside for modern component devices, and should not be used. Phil -- 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