Re: device parity

Hello Maarten,
minimum requirements for a RAID-5 setup on a 170 is as follows

--   4 disks of equal type and size

--   Controller
       FC 2740 or FC 2741  (V4R2 minimum OS-level)
       or FC 2748 (V4R4 minimum OS-level)

If you have the FC 2728 (== FC 9728) Controller installed, you
are not able to start RAID, because that basic controller does not
have this function (and is much cheaper, of course).

HTH, and greetings from germany, Philipp Rusch

"Maarten Vries, de" schrieb:

> Sorry to bother you all, but I have noticed I do NOT have a raid controller.
> This system was sold to me with a raid controller but probably they did not
> put it in the system.
>
> Thanks
> Maarten
>
> >From: "Maarten Vries, de" <m_devries74@hotmail.com>
> >Reply-To: MIDRANGE-L@midrange.com
> >To: MIDRANGE-L@midrange.com
> >Subject: Re: device parity
> >Date: Sat, 03 Feb 2001 22:05:29 +0100
> >
> >well when I want to do that it fails.
> >After configuring the load source I am not able to add disks in the device
> >parity.
> >When no load source exist it you cannot do that action.
> >
> >I believe it is possible but from model 620 and higher.
> >My model 170 is an older one
> >
> >Maarten
> >
> >
> >>From: "Al Barsa, Jr." <barsa2@ibm.net>
> >>Reply-To: MIDRANGE-L@midrange.com
> >>To: MIDRANGE-L@midrange.com
> >>Subject: Re: device parity
> >>Date: Sat, 03 Feb 2001 15:17:26 -0500
> >>
> >>At 07:50 PM 2/3/01 +0100, you wrote:
> >>>I have a model 170 with 4 disks and a raid controller.
> >>>Can I use device parity for that system or is that impossible.
> >>>After installing the load source I only have 3 disks left which is not
> >>>enough for device parity
> >>
> >>Yes, you can use RAID-5.  The load source participates in the parity set.
> >>
> >>Al
> >>+--------------------------------------------------+
> >>| Please do not send private mail to this address. |
> >>| Private mail should go to barsa@ibm.net.         |
> >>+--------------------------------------------------+
> >>
> >>Al Barsa, Jr. - Account for Midrange-L
> >>Barsa Consulting Group, LLC.
> >>400 > 390
> >>
> >>Phone:                914-251-1234
> >>Fax:          914-251-9406
> >>http://www.barsaconsulting.com
> >>http://www.taatool.com
> >>

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