I have a home server running Ubuntu 9.04 Server (kernel 2.6.28-16-server), which has three drives in RAID-5 using mdadm (version 2.6.7.1 according to mdadm --version). I would like to reshape this array into a RAID-6 using one additional drive, thereby turning it into a four disk RAID-6 array (with the intention to grow the usable size of the array later on). I've been scouring the relevant info I can find on the web and haven't come across a well-outlined process by which to accomplish this. So, basically, I'm wondering if I can accomplish this reshape with my current software, or if I'll need to use mdadm 3.1.1 and/or a LiveCD with a newer kernel? It's my understanding that, given a capable setup, adding the new drive as a spare and then growing the array using a command like "mdadm --grow /dev/md0 --level=6 --raid-disk=4" should work, but I want to make sure I've got the tools necessary before attempting it. Thanks in advance for any help!-- 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
