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  • Modifying SCAN Configuration in Oracle 11g Release 2 RAC

    Modifying SCAN Configuration in Oracle 11g Release 2 RAC

    Rename SCAN

    The original name was "ol6-112-scan" and I want to rename it to "ol6-112-scan2". Check the new name is configured in the DNS.

    $ nslookup ol6-112-scan2
    Server:		192.168.0.4
    Address:	192.168.0.4#53
    
    Name:	ol6-112-scan2.localdomain
    Address: 192.168.0.117
    Name:	ol6-112-scan2.localdomain
    Address: 192.168.0.116
    Name:	ol6-112-scan2.localdomain
    Address: 192.168.0.115
    
    $

    Display the current configuration using the following command as the oracle/grid user.

    $ export GRID_HOME=/u01/app/11.2.0.3/grid
    $ $GRID_HOME/bin/srvctl config scan 
    SCAN name: ol6-112-scan, Network: 1/192.168.0.0/255.255.255.0/eth0
    SCAN VIP name: scan1, IP: /ol6-112-scan/192.168.0.115
    SCAN VIP name: scan2, IP: /ol6-112-scan/192.168.0.116
    SCAN VIP name: scan3, IP: /ol6-112-scan/192.168.0.117
    $

    Turn off the SCAN and SCAN listeners using the following commands as the oracle/grid user.

    $ export GRID_HOME=/u01/app/11.2.0.3/grid
    $ $GRID_HOME/bin/srvctl stop scan_listener 
    $ $GRID_HOME/bin/srvctl stop scan

    Modify the SCAN name using the following commands as the root user.

    # export GRID_HOME=/u01/app/11.2.0.3/grid
    # $GRID_HOME/bin/srvctl modify scan -n ol6-112-scan2   
    # $GRID_HOME/bin/crsctl modify type ora.scan_vip.type -attr "ATTRIBUTE=SCAN_NAME,DEFAULT_VALUE=ol6-112-scan2"

    Turn on the SCAN and SCAN listeners again using the following commands as the oracle/grid user.

    $ $GRID_HOME/bin/srvctl modify scan_listener -u 
    $ $GRID_HOME/bin/srvctl start scan_listener

    Display the changed configuration.

    $ $GRID_HOME/bin/srvctl config scan 
    SCAN name: ol6-112-scan2, Network: 1/192.168.0.0/255.255.255.0/eth0
    SCAN VIP name: scan1, IP: /ol6-112-scan2/192.168.0.115
    SCAN VIP name: scan2, IP: /ol6-112-scan2/192.168.0.116
    SCAN VIP name: scan3, IP: /ol6-112-scan2/192.168.0.117
    $

    For more information see:

    Hope this helps. Regards Tim...

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  • 原文地址:https://www.cnblogs.com/yaoyangding/p/15778487.html
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