From: Green, Simon (SGreen@KRAFTEUROPE.COM)
Date: Mon Jun 17 2002 - 07:27:05 EDT
I'm not really familiar with the hardware raid features, but I'm fairly sure
it's restricted to a single adapter. (So you *can* use both A and B loops
from a single adapter.) I think it's possible to use loops that include two
adapters, but that might give you problems with fast-write cache. (It might
not, but you'd need to check it.) I'd recommend taking a look at the LVM
and SSA Redbooks. Also check here:
http://www.storage.ibm.com/hardsoft/products/ssa/docs/index.html
The Advanced Serial RAID Planning Guide looks promising.
Simon Green
Philip Morris ITSC Europe
AIX-L Archive at http://marc.theaimsgroup.com/?l=aix-l&r=1&w=2
AIX FAQ at http://www.faqs.org/faqs/aix-faq/
N.B. Unsolicited email from vendors will seldom be appreciated.
> -----Original Message-----
> From: Raj Atwal [mailto:tatwal@YAHOO.COM]
> Sent: 17 June 2002 11:49
> To: aix-l@Princeton.EDU
> Subject: Re: RAID 10
>
>
> Thanks Simon. I was planning to do hardware RAID 10,
> so I guess this is not allowed then over 2 loops?
>
> --- "Green, Simon" <SGreen@KRAFTEUROPE.COM> wrote:
> > If you do your mirroring through LVM, this is
> > possible.
> >
> > > -----Original Message-----
> > > From: Raj Atwal [mailto:tatwal@YAHOO.COM]
> > > Sent: 17 June 2002 03:40
> > > To: aix-l@Princeton.EDU
> > > Subject: RAID 10
> > >
> > >
> > > Is it possible to configure hardware RAID 10 over
> > 2
> > > SSA loops. I have been told that this is not a
> > valid
> > > configuration for RAID 10. For instance to have
> > the
> > > primary copy over loop A and the secondary copy
> > over
> > > loop B. Appreciate any information.
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