[CC restored] On 03/12/2011 12:37 PM, Rory Jaffe wrote: > This is my plan now--did I get this right? -- thanks -- > > shutdown -r now # go to live cd > umount /dev/md0 #just to make sure > e2fsck /dev/md0 > resize2fs /dev/md0 3800G #3.2T currently in use > shutdown -r now # go back to main system > mdadm --grow /dev/md0 --array-size 4000000000 > mdadm -G -n 4 -x 2 --backup-file=/path/to/file.bak /dev/md0 > resize2fs /dev/md0 I would do everything in the LiveCD environment, and I would add an fsck after the resize, and again at the end. In the LiveCD, there's a good chance the array will be assembled for you, but as a different number. That shouldn't cause any problems, but it affects the commands you'll type. "cat /proc/mdstat" will give you a quick summary of where you stand. I can't comment on the size figures you've chosen, as you haven't shared the output of "mdadm -D /dev/md0" and "mdadm -E" for each of the component devices. Also note that the backup file needed by mdadm cannot be *inside* the array you are resizing. You *must* have another storage device for it. I use a thumb drive with my LiveCD for this kind of task. 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
