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Message-ID: <6e9345580712180651w7cb171f3h57af139f6eb3756a@mail.gmail.com>
Date: Tue, 18 Dec 2007 15:51:32 +0100
From: "LS Cheng" <exriscer@gmail.com>
To: bkaltofen@gmx.de
Subject: Re: RAC Std: where to put 3rd voting disk with only 2 Storage Arrays
Cc: oracle-l@freelists.org
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Hi

Normally for stretch clusters the 3rd voting disks is set in a third site
using NFS, in your case you can probably set up a small server and place
your third voting disk there

There is a WP on OTN about this setup.

Thanks

--
LSC


On Dec 18, 2007 2:58 PM, bkaltofen@gmx.de <bkaltofen@gmx.de> wrote:

> Hello,
>
> we are about to install a RAC Standard Edition on two Solaris 10 Servers
> with two storage arrays. The arrays are attached to both servers with
> FCAL multi pathing.
> To keep running if one array fails, we would like to virtualize/mirror
> the storage using Sun Volume Manager (SVM).
>
> Can we put the (3) voting disks and the OCR on multi host meta devices
> (MD) created with SVM?
>
> If not, where do we put the third voting disk?
> --> We can mirror the data using ASM disk groups. We can put 1 OCR on a
> slice of each array. We can put 1 voting disk on a slice of each array,
> too.
> But, if we put one voting disk on array1 and two VD's on array2 we would
> lose the RAC, if array2 fails.
>
> Any sugestions?
>
> Bjoern
> --
> http://www.freelists.org/webpage/oracle-l
>
>
>

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Hi<br><br>Normally for stretch clusters the 3rd voting disks is set in a third site using NFS, in your case you can probably set up a small server and place your third voting disk there<br><br>There is a WP on OTN about this setup.
<br><br>Thanks<br><br>--<br>LSC<br><br><br><div class="gmail_quote">On Dec 18, 2007 2:58 PM, <a href="mailto:bkaltofen@gmx.de">bkaltofen@gmx.de</a> &lt;<a href="mailto:bkaltofen@gmx.de">bkaltofen@gmx.de</a>&gt; wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hello,<br><br>we are about to install a RAC Standard Edition on two Solaris 10 Servers<br>with two storage arrays. The arrays are attached to both servers with
<br>FCAL multi pathing.<br>To keep running if one array fails, we would like to virtualize/mirror<br>the storage using Sun Volume Manager (SVM).<br><br>Can we put the (3) voting disks and the OCR on multi host meta devices
<br>(MD) created with SVM?<br><br>If not, where do we put the third voting disk?<br>--&gt; We can mirror the data using ASM disk groups. We can put 1 OCR on a<br>slice of each array. We can put 1 voting disk on a slice of each array, too.
<br>But, if we put one voting disk on array1 and two VD&#39;s on array2 we would<br>lose the RAC, if array2 fails.<br><br>Any sugestions?<br><br>Bjoern<br><font color="#888888">--<br><a href="http://www.freelists.org/webpage/oracle-l" target="_blank">
http://www.freelists.org/webpage/oracle-l</a><br><br><br></font></blockquote></div><br>

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