On Tue, 30 Mar 2004, Daniel Pittman wrote: > 1. Buy and install the second disk. > Make sure you partition it to the desired sizes, and set all > partitions to type 'fd', 'RAID autodiscovery'. > > 2. Use mdadm to create the RAID1 in "degraded" mode, using only the > second disk. eg: you can do it the other way around with less copying -- using resize2fs to shrink your main filesystem enough to fit the raid superblock at the end of the partition. then use mdadm to create a degraded array containing your main partition ... then futz partition tables/etc. on the second disk, and hotadd it. i'm being deliberately vague because it's the sort of thing you want to understand well enough that this vague description is all the hints you need :) the main difficulty is knowing how much to shrink... this would actually be a useful addition to mdadm. but you can't go wrong just shrinking by 128MB or such then grow after turning it into a raid. -dean - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
