RAID

[Anders Karlsson]

On 1/1/06, Phillip Susi <psusi at cfl.rr.com> wrote:
> Hardware fakeraid has several advantages over md including:
>
> 1) Can dual boot with windows

If you want to do such a horrible thing yes... ;-)

> 2) Can boot directly from the raid, rather than have a seperate boot
> partition

MD does that as well, I have such a setup. I would agree that if you
want to gamble your data on a RAID0 setup, *then* the fakeraid may be
your only option *if* you insist on striping across the whole disks
and not keep your root/boot partition separate from the RAID0.

> 3) Can boot from volume types other than raid1 ( i.e. raid0 )

See above.

> 4) In the event that the primary drive in a mirror fails, the system
> still boots using the second drive rather than hang trying to read the
> first.

That will hold true for MD as well. The whole point of mirroring is
that both (all) copies are equal, and contain the same data.

> I very much enjoy booting up from a stripe of two 10,000 rpm 36 gig sata
> WD raptors which give a combined sustained read throughput of very
> nearly 100 MB/s, and it's nice to have a copy of windows on there too
> for the occasional game fest.

Why oh why these fakeraid cards are incapable of 'hiding' the raid
members they have attached, and present logical devices through int
13h instead like sane raid controllers is beyond me. I do regret not
calling bull on the adapter I bought, and either spending less on a
normal pic ide card, or spending more getting a proper raid card.
Each one to their own I guess.

Happy New Year,

--
Anders Karlsson <trudheim at gmail.com>