On Mon, Oct 26, 2015 at 6:00 PM, Doug Herr <gmane@xxxxxxxxxxx> wrote: > I think it might be time to replace one or both of my RAID 1 drives. [snip] > I recently experimented with adding a third partition to my swap raid > partition and that went very well, so I was thinking that this would > provide a safer method to replace one drive compared to failing it and > then replacing it. > [snip] I tried basically the procedure you described, based on Internet research, to replace a working but suspect drive in a RAID. I ran into problems. FWIW, my metadata format is 1.2. You can see the thread at http://marc.info/?l=linux-raid&m=143668094907891&w=2 although the most pertinent EMail is the first response http://marc.info/?l=linux-raid&m=143670871711935&w=2 I suppose it's possible that you might get different advice since you're doing RAID 1 and I was doing RAID 5. I'm not an expert. I just wanted to warn you that I ran into trouble basically doing what you propose. The advice I got was that I shouldn't grow and shrink to replace a disk. There's a --replace option for that. That'll remove a few of your steps, simplify and speed up the process, and remove risk. Hope this helps. Hopefully someone who knows a lot more than I do will also speak up. Good luck. Eddie -- 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
