On Tue, Sep 13, 2016 at 10:18:41PM -0700, scar wrote: > i currently have four RAID-5 md arrays which i concatenated into one > logical volume (lvm2), essentially creating a RAID-50. each md array > was created with one spare disk. That's perfect for switching to RAID-6. More redundancy should be more useful than spares that only sync in when you already completely lost redundancy ... And the disks would also be covered by your checks that way ;) > i was wondering, then, how i could also check the spare disks to make > sure they are healthy and ready to be used if needed? smartmontools, periodic selftests. for all disks, not just the spares. you can use select,cont tests to check a small region each day, covering the entire disk over $X days. Regards Andreas Klauer -- 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
