a.laval@netcourrier.com (Deewe) wrote in message news:<ba15a25c.0407140756.1cc0bb2e@posting.google. com>...
> a.laval@netcourrier.com (Deewe) wrote in message news:<ba15a25c.0407131014.16b2388c@posting.google. com>...
> > Hello,
> >
> > I just got our new P 615 with a 5703 PCI-X SCSI Dual channel RIAD
> > Controller.
> >
> > We ordered this SCSI card as we where told it has RAID 1 capabilities.
> >
> > I spent a lot of time checking the manuals, docs and browsing the web
> > and so far the 5703 model only works with RAID 0, 5 or 10!!!
> >
> > Well, I really need to have a hardware RAID 1 on this server.
> >
> > Can anybody tell me if there is a way to use only raid 1 with this
> > card, if so how to?
> >
> > Is another card model with RAID 1 capabilities.
> >
> > We are using AIX 5.2.
> >
> > Thanks for your help.
>
> I was just told by IBM, RAID 1 can be tweaked on this model
> configuring a raid 10 on 2 disks only, but this isn`t supported by
> IBM...
>
> Even, we have 4 disks and we need 2 different mirrors and it is
> impossible to do 2 mirrors as the card would take the 4 disks if we
> configure a "false" RAID 10.
>
> Last word I was told by IBM there isn't any hardware RAID 1 SCSI
> capable card avaible on AIX, at least with the PCI-X cards...

Well after intensive testing we where able to build 2 "false" RAID 10
with this card.

It seems the disks are working as RAID 10 without stripping so RAID 1.

At last I would suggest to use logical RAID 1 and for half the price
of the 5703 SCSI card, add a second CPU to the configuration so the
data treatment won't impact the processor.