RE: Oracle RAC private Interconnect

Sanjay,
 
Your assumption seems correct. Solaris' IPMP features of failover and
load balancing are similar to Linux's bonding modes 1 and 0
respectively. FYI, Oracle has a project on their website called Hanicd
that uses bonding to enable NIC failover.
 
Cheers,
Julio


________________________________

        From: Sanjay Mishra [mailto:smishra_97@xxxxxxxxx] 
        Sent: Friday, July 13, 2007 2:42 PM
        To: QuijadaReina, Julio C; oracle-l@xxxxxxxxxxxxx
        Subject: RE: Oracle RAC private Interconnect
        
        
        Thanks Julio
         
        Can you correct me as it look like Bonding is term used in Linux
and it will be IP multipathing in Solaris. 
        
        "QuijadaReina, Julio C" <QuijadJC@xxxxxxxxxxxxxxx> wrote:

                Hello Sanjay,
                 
                Have you looked into using IP Multipathing? We are not a
Solaris shop. But I have seen docs on the web (Google is your friend) on
how to configure it. You would need to run vipca and cluvfy to make sure
IP Multipathing works and is a supported option with Oracle 10g.
                 
                Julio


________________________________

                        From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Sanjay Mishra
                        Sent: Friday, July 13, 2007 12:03 PM
                        To: oracle-l@xxxxxxxxxxxxx
                        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
                         
                         
                        Thanks
                        Sanjay
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