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
Received on Tue Jun 13 2006 - 11:22:38 CDT
