Re: how to multiplex ocr and voting disk

"Jonathan Lewis" <jonathan_at_jlcomp.demon.co.uk> wrote in message news:dq8phg$har$1_at_nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com...
>
> "Bill Manry" <BManry_at_nospam.oracle.com> wrote in message
> news:5ppds1ph2vgfonumvo7jbqtrcv4f0ir04o_at_4ax.com...
>> On 12 Jan 2006 08:51:54 -0800, "cbarak" <charlinbarak_at_gmail.com>
>> wrote:
>>>When we set up RAC 10gR2 two months ago, we only specified one ocr and
>>>voting disk during the installation. We would like to multiplex those
>>>files now but I'm not able to find the command to do that. How can I
>>>create an additional ocr and voting disk? We're running Solaris9.
>>
>> Use the crsctl (voting disk) and ocrconfig (ocr) command line tools.
>> See chapter 3 of the 10.2 Cluster Admin and Deployment Guide
>> (B14197-03). There is some additional info in the Solaris-specific
>> RAC/Clusterware book (B14205-01).
>> ---
>> Bill Manry - Oracle Corp. USA
>> Opinions are mine, not Oracle's.
>
> What happens if you multiplex the voting disc and
> two different instances can each acquire one copy ?
>
> Won't they both think that the other has to be ejected
> and leave you with two instances acting independently ?
>

Got my own answer:

    it has to be an odd number of copies.

So I guess no single instance can take
charge unless it has exclusively acquired more than half the known copies.

-- 
Regards

Jonathan Lewis

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