Re: 10g RAC network failure behavior

From: DA Morgan <damorgan_at_psoug.org>
Date: Mon, 21 Aug 2006 14:06:24 -0700
Message-ID: <1156194383.61232@bubbleator.drizzle.com>

Keith wrote:

> Metalink note 296878.1 describes the behavior starting with 10.1.0.4.
> 
> DA Morgan wrote:

>> 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

Please do not top post.
I have not observed it with 10gR2. -- 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 Mon Aug 21 2006 - 16:06:24 CDT