On 08/04/17 22:42, LM wrote: > Hi, > > I have a 4 disk RAID5, the used dev size is 640.05 GB. Now I want to > replace the 4 disks by 4 disks with a size of 2TB each. > > As far as I understand the man page, this can be achieved by replacing > the devices one after another and for each device rebuild the degraded > array with: > > mdadm /dev/md0 --add /dev/sdX1 Do you have a spare SATA port or whatever your drives are. If so, then use the --replace option to mdadm, don't fail then add. You're risking a drive failure taking out your array - not a good move. And if you don't have a spare port, $20 for a PCI card or whatever is a good investment to keep your data safe. Have a look at the raid wiki - it tries to be a bit more verbose and easily comprehensible than the man page. Cheers, Wol -- 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
