RE: Oracle RAC private Interconnect

Thanks Julio for you Reference about IPMP and I found Metalink DOc
  Solaris IPMP for VIP - 283107.1
  Solaris IPMP for Cluster Interconnect 368464.1
   
  I will check more on this with SYsadmin
   
  Tx
  Sanjay

"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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