Re: CRS Error

From: DA Morgan <damorgan_at_psoug.org>
Date: Tue, 11 Dec 2007 20:08:44 -0800
Message-ID: <1197476380.171060@bubbleator.drizzle.com>

Michael Austin wrote:

> DA Morgan wrote:

>> madunix wrote:
>>> Production servers: RAC Oracle 10g 10.2.0.3, AIX 5.3 ML3, 2 Nodes IBM
>>> pSeries 550.
>>>
>>> Symptoms:
>>>
>>> CRS Status "Can not communicate with CRS" After the reboot the first
>>> Node, the Node was
>>> not able to rejoin the cluster RAC reported CRS communication error,
>>> after that the error
>>> transferred to the next Node, so the nodes were not able to
>>> interconnect to each other
>>>
>>> #CRS-Stat
>>> CRS - 0184: can not communicate with the CRS daemon.
>>>
>>> In fact the CRS is configured to start after reboot, and it ran as
>>> root.
>>> We tried many times to ran healthy check on the 2xNodes,
>>> by doing "$CRS-Home/bin/crsctl check crs as away to determine
>>> if the daemons are running, combined with monitoring "ps" for the
>>> processes,
>>> with no success!
>>>
>>> Any input would be really appreciated
>>>
>>> Thanks
>>
>> Run the cluster verify tool.
>> Have you verified the connection by pinging across it?

> 
> Daniel,
> 
> Have you been successful in using multiple cross-over interfaces for 
> cluster interconnect?  On Solaris, I have used IPMP (active/passive), 
> but would like this to be active/active.
> 
> Michael.

What is required is a couple of GigE NIC cards with a cat 5E or cat 6 piece of copper connecting them through a gig switch ... nothing more. Get the basics working first.

Then go for multipathing as a separate step.

I've personally not had experience with Solaris's implementation but I know people that have. Check here: http://www.oracleracsig.org
In fact there is an online meeting Wednesday so join us. Erik Peterson will be there and he's the head of the RAC Pack at Oracle.

-- 
Daniel A. Morgan
Oracle Ace Director & Instructor
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 Dec 11 2007 - 22:08:44 CST