Re: Load source question (RE: Disk Upgrade)

["Charles Wilt" <charles.wilt@xxxxxxxxx>]

Also,

(I think) Striping by itself (aka RAID 0) is done by the OS (deep down in
the LIC).

But I don't know where the Striping done for a RAID-5/RAID-6 is done.  It
would make sense for the controller to do it, and from what Sue says, that
is the case now.  But I don't believe it's always been the case.

Charles

On Tue, Nov 18, 2008 at 1:57 PM, Lukas Beeler <lukas.beeler@xxxxxxxxxxxxxxxx
> wrote:

> On Tue, Nov 18, 2008 at 6:33 PM, McKown, John
> <John.Mckown@xxxxxxxxxxxxxxxxx> wrote:
> > Ignorant question here: Does that mean that the i does the striping in
> > host software? The DASD for the "z" is striped as well, but it is done
> > in the DASD subsystem and is transparent to the host.
>
> Additionally to the mails you already received:
>
> Mirroring is usually done at the software level on the i, this can be
> used to mirror drives across controllers, IOPs and/or towers.
>
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