Hi Maurice, On 06/21/11 14:13, maurice wrote:
Add 3rd disk to make a 3 disk RAID1 Make a RAID10, missing one disk.
Perhaps I misunderstand your supposition, and if I do, please correct me. RAID10 with mdadm does not require a minimum of 4 disks. For example, mdadm can do RAID10 with 2 copies on 3 disks or RAID10 with 3 copies on 3 disks, yielding the equivalent of RAID1 in terms of data security. It is not confined to mirroring two pairs of disks and then striping across them as is the "conventional" way of doing RAID10.
You can read the man-page of mdadm, where the options for "layout" of RAID10 are discussed. Pay particular attention to the end of the "--layout" option explanation.
Cheers! Iordan -- 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
