Yes the systems cited by the OP have nothing to do with RAID5, and in fact are proprietary - definitely as in "non-standard", and I think also none are open source. They do seem to have a lot of flexibility - mix and match any number and size of drives, toss another random-sized drive in an expand your capacity. Apparently particularly well-suited to hobby/soho/sme users; I've especially heard good things about Drobo for that market. Think of the usual reaction a corporate IT guy (used to what he calls "normal RAID", ie not mdadm) first hears about setting up mdadm RAID10 on odd numbers of drives, even say 3 - like "huh??!!" On Thu, Mar 10, 2011 at 8:36 PM, Roman Mamedov <rm@xxxxxxxxxx> wrote: > On Thu, 10 Mar 2011 14:24:24 +0100 > jimbob palmer <jimbobpalmer@xxxxxxxxx> wrote: > >> Oh I'm not proposing it, I'm asking if mdadm can do it, like the other >> products can. > > No 'product' can 'do' a 1+1+1+3 TB RAID5, or it will not be a RAID5 but > something else. > > -- > With respect, > Roman -- 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
