Shane, Please take the following with some suspicion. I used raidreconf to add drives to an array, so I assume the grow functionality can at least do the same. I wonder: if you have less than 1TB of data then you can: 1 fail one 320GB disk (array now degraded!) 2 use the port to install 1x1TB as a degraded 2-disk RAID5 3 copy all the data across 4 remove the 5x320GB 5 install the other 2x1TB may need to resync the 2x before growing to 3x? 6 grow to 3x1TB RAID5 If you *do* have a spare port then in step 2 you can create a degraded 3x1TB and step 6 is a simple resync when you add the missing third disk. You can copy the full 1.6TB across in this case. Naturally, all this "degraded" means there is a real risk to your data for a few hours, but you knew that. However, when I do not have ports to play with I take the slow solution and create the new RAID externally (using USB or another computer over a net - there is always another computer around for this job). Good luck. Eyal Shane wrote:
Hello all, I have a raid5 softraid array using 6x320GB SATA drives. I would like to reconfigure it to be 3x1tb SATA. Is there a way to do this using the grow feature of mdadm. IE by swapping 3 of the 320GB drives out for the 3 1TB drives allowing the resyncs to occur between swapping and then somehow tell mdadm to take the remaining three 320GB drives out of the array or would I need to just create a new array somehow, copy the data over and just shut the first array right down? Thanks, Shane
-- Eyal Lebedinsky (eyal@xxxxxxxxxxxxxx) - 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
