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RE: Oracle RAC private Interconnect

From: William Wagman <>
Date: Fri, 13 Jul 2007 12:31:02 -0700
Message-ID: <>


You mention a bug due to IP addresses. I am wondering if you could provide details on that bug as I am currently encountering difficulties with a CRS installation and wonder if it might be relevant.  

Thank you.  

Bill Wagman
Univ. of California at Davis
IET Campus Data Center
(530) 754-6208  

[] On Behalf Of Sanjay Mishra Sent: Friday, July 13, 2007 10:45 AM
To: Kerber, Andrew W.; Subject: RE: Oracle RAC private Interconnect


YEs that is fine as it will be done after clusterware is installed manually if not invoked by Clusterware installed as there is bug due to IP addresses. My concern is to get information about the Bonding and multipathing. I am searching for some information on Google and I appreciate if you have any link and advice on this setup.  


"Kerber, Andrew W." <> wrote:

        You also have to set up the virtual ip, which is what is used in the failover. Run vipca. Also, be sure and run cluvfy          

	-----Original Message-----
[] On Behalf Of Sanjay Mishra
	Sent: Friday, July 13, 2007 11:03 AM
	Subject: Oracle RAC private Interconnect
	It is recommended to use two Gigabit Switches for RAC Node
Interconnect communication to provide Redundancy and performance. Is there any setup required on beside configuring two interface like eth1 and eth2 and then specifying them in RAC cluster installation PRIVATE Interconnect screen.          

        I am just trying to understand that how the failover or redundancy is achieved if I unplug one of the Cable on one Node. Is it been configured by RAC clusterware or I had to tell something to sysadmin.          

        Also how performance is achieved in using two Switches.          

        I am currently having 10g RAC on sun SOlaris 10 with one Gigabit Switch for QA environment and planning for Production hardware requirements.          

        Also If I use Oracle 10g ASM for Storage and RAW device for OCR and Voting Disk. I am using EMC with Two SAN switches and so 2HBA on each Node. Anybody has any doc for Multipathing with EMC. My concern is that both nodes see the RAW Device LUN as well as ASM luns as same and two HBA should provide the high availability when I will remove one of the HBA                    


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Received on Fri Jul 13 2007 - 14:31:02 CDT

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