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  • 1.  Multicast for oracle RAC on AIX 6.1

    Posted Wed March 09, 2011 04:52 AM

    Originally posted by: PaulCondren


    Hi.

    I'm assisitng a DBA with an Oracle 11.2.0.2 RAC install on AIX 6.1. The install failts at the root.sh step on the second node which apears to be a know problem

    http://www.ora-solutions.net/web/2010/09/29/upgradeinstall-of-grid-infrastructure-to-11-2-0-2-is-failing/

    Networks are not my strong point, can some explain what route I would need to add if my RAC interconnect is using 192.168.1 addresses?

    I.e. Node 1 is 192.168.1.1 and Node 2 is 192.168.1.2

    Ive also see some talk that I need to ensure multicast is enabled on our cisco switch which I will do.

    Lastly, I would like to use the multicast.pl but can find it, is there another AIX OS test to see if multicast is working?

    Thanks :)
    #AIX-Forum


  • 2.  Re: Multicast for oracle RAC on AIX 6.1

    Posted Wed March 09, 2011 06:07 AM

    Originally posted by: PaulCondren


    Me again. Ive got the mcasttest script and have run it with odd results. Its failing on once interface - the RAC interconnect. Can this be corrected with a route?

    NODE1 RAC N1 :# ./mcasttest.pl -n NODE1,NODE2 -i en5,en0,en2
    1. Setup for node NODE1 ##########
    Checking node access 'NODE1'
    Checking node login 'NODE1'
    Checking/Creating Directory /tmp/mcasttest for binary on node 'NODE1'
    Distributing mcast2 binary to node 'NODE1'
    1. Setup for node NODE2 ##########
    Checking node access 'NODE2'
    Checking node login 'NODE2'
    Checking/Creating Directory /tmp/mcasttest for binary on node 'NODE2'
    Distributing mcast2 binary to node 'NODE2'
    1. testing Multicast on all nodes ##########

    Test for Multicast address 230.0.1.0

    Mar 9 10:57:27 | Multicast Failed for en5 using address 230.0.1.0:42000
    Mar 9 10:57:28 | Multicast Succeeded for en0 using address 230.0.1.0:42001
    Mar 9 10:57:29 | Multicast Succeeded for en2 using address 230.0.1.0:42002

    Test for Multicast address 224.0.0.251

    Mar 9 10:57:30 | Multicast Succeeded for en5 using address 224.0.0.251:42003
    Mar 9 10:57:31 | Multicast Succeeded for en0 using address 224.0.0.251:42004
    Mar 9 10:57:32 | Multicast Succeeded for en2 using address 224.0.0.251:42005
    NODE1 RAC N1 :#
    #AIX-Forum


  • 3.  Re: Multicast for oracle RAC on AIX 6.1

    Posted Fri March 11, 2011 01:38 PM

    Originally posted by: pmoosh


    In your case, you need to apply the Oracle patch 9974223
    Here is the description of the solution:

    It has been found that the functionality of multicast on the 230.0.1.0 (port 42424) network address has been problematic with some network environments resulting in the issue stated above. To address this issue Oracle has released Patch: 9974223 on top of 11.2.0.2 . This patch makes use of the 224.0.0.251 (port 42424) multicast network address in addition to the 230.0.1.0 (port 42424) multicast address. Multicast must be enabled on one of these two addresses to allow for Oracle Grid Infrastructure to successfully start on all cluster nodes.

    thanks

    Peter
    #AIX-Forum


  • 4.  Re: Multicast for oracle RAC on AIX 6.1

    Posted Tue December 18, 2012 10:35 AM

    Originally posted by: SystemAdmin


    Where can I download this script from inside IBM?

    Thanks in advance
    Tim
    #AIX-Forum