Re: 10g RAC network failure behavior

Keith wrote:
> Well, I just inherited a 2-node 10g RAC database on linux. I'm trying
> to understand the network failure points, and what the behavior is
> supposed to be from RAC.
>
> I just read a Metalink note stating that the DB and ASM are dependant
> on the VIP, so a link or adapter failure on the public interconnect
> would cause the instance to crash. Unfortunately there is no more
> information as to why they are dependant on the the public
> interconnect. Why crash the instance? What about locally connected
> apps? Isn't there another hearbeat through the private interconnect?
>
> Also, what I haven't found is what happens when the private
> interconnect fails? CSS is supposed to guard against the split brain
> syndrome, but how? What happens?
>
> Any help would be apprecated from you RAC gurus.... and if you could
> point me to the right documentation, that would be helpful too. I've
> been perusing the CRS/RAC install and admin guides and I'm not finding
> this information anywhere.
>
> Thanks in advance for your help.

I've not seen anything in the documentation indicating a crash was an appropriate response. Node ejection and operating system reboots on the other hand are.

Can you provide a link to the doc you are reading.

-- 
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