David T-G writes: > RAID10 is striping AND mirroring (leaving out for the moment the distinction > of striping mirrors vs mirroring stripes). How can one have both with only > two disks?? You either stripe the two disks together for more storage or > mirror them for redundant storage, but I just don't see how one could do both. In the default near layout, you don't get the striping with only two disks; it is identical to raid1. With the offset and far layouts though, you do get the striping and the mirroring by mirroring each stripe elsewhere on the disk ( one stripe down in the case of offset, and in the second half of the disk in the case of far ). With 3 disks, even the near layout benefits from striping.
