"DA Morgan" <damorgan_at_psoug.org> wrote in message
news:1150215762.921575_at_bubbleator.drizzle.com...
> Andreas Sheriff wrote:
>> "DA Morgan" <damorgan_at_psoug.org> wrote in message
>> news:1150127574.321184_at_bubbleator.drizzle.com...
>>> Andreas Sheriff wrote:
>>>> Hey all,
>>>>
>>>> System:
>>>> 10.2.0.2.0
>>>> RHEL4
>>>> 2 node rac
>>>> Two individual iSCSI storage arrays connected via HBA.
>>>>
>>>> I've perused the documentation but I can't find any mention of what I
>>>> need.
>>>>
>>>> As you know, or may not know, with 10.2 you Oracle now mirror the OCR
>>>> ( 2 copies ) and voting disks (VD) (at least 3 copies to be effective).
>>>>
>>>> Testing shows that if even one of the OCR / VD mirrors becomes lost
>>>> (plugging out one of the arrays) the node loosing the mirror restarts,
>>>> and in my case, both nodes restart.
>>>>
>>>> Is this so? Is it stated in the documentation?
>>> Is what so? Both nodes should not restart ... only one ... which has
>>> been my experience with 10.2.0.1 on RedHat AS 4.0 Update 2 using a
>>> NetApp 920 NFS mounted NAS.
>>>
>>> What interests me is your comment about two iSCSI arrays. Could you be
>>> more explicit with respect to how each node is seeing each array and
>>> where the OCR and Vote copies are stored and what you are disconnecting.
>>> --
>>> Daniel A. Morgan
>>> University of Washington
>>> damorgan_at_x.washington.edu
>>> (replace x with u to respond)
>>> Puget Sound Oracle Users Group
>>> www.psoug.org
>>
>> I figured it out. Two of the three votedisks have to survive.
>
> Correct. The number of vote disks must be an odd number (3, 5, 7, 9)
> and the majority must survive and be visible to the cluster.
> --
> Daniel A. Morgan
> University of Washington
> damorgan_at_x.washington.edu
> (replace x with u to respond)
> Puget Sound Oracle Users Group
> www.psoug.org
Where does it state in the manual that the majority must survive?
I love how they leave these little tidbits out. 'Makes it exciting!
--
Andreas
Oracle 9i Certified Professional
Oracle 10g Certified Professional
Oracle 9i Certified PL/SQL Developer
"If you don't eat your meat, you cannot have any pudding.
"How can you have any pudding if you don't eat your meat?!?!"
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Received on Tue Jun 13 2006 - 12:29:31 CDT
