Neil, Since when was this possible? I always thought that it had to have an even number of disks. On Sun, Mar 14, 2010 at 12:26 AM, Neil Brown <neilb@xxxxxxx> wrote: > On Sat, 13 Mar 2010 16:06:38 -0500 > Carlos Mennens <carloswill@xxxxxxxxx> wrote: > >> I was told by my distributions Wiki page that Grub doesn't support >> RAID 5 or RAID 6 so I would need to create a volume with three disks >> and set the level to RAID 1: >> >> # mdadm --create /dev/md1 --level=1 --raid-devices=3 /dev/sda1 >> /dev/sdb1 /dev/sdc1 --spare-devices=1 /dev/sdd1 >> >> Is this possible to mirror three identical drive partitions? I was >> talking to some co-workers and was told that I could only pair two >> drives on RAID 1. > > Your co-workers are wrong, at least for md raid. With md, a RAID1 can have > any number of devices from 1 upwards - the limit varies in different > situations but is at least 28. > > Try it and see. > > NeilBrown > >> >> Can anyone please help me understand this? >> -- >> 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 > > -- > 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 > -- Majed B. -- 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
