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Showing posts from September, 2016

Oracle 12c Release 2 New Features for Active Data Guard

Hi , At Oracle Open World 2016 I collected the main improvements and changes   are going to be implemented in Oracle Database 12 Release 2 : 1.        Data Guard Creation with dbca, support automatic creation of Standby database and Far Sync instance   not for RAC (at this point) command : dbca -silent -createDuplicateDB     - PrimartDBConnectionString myprymary.domin:1523/chicago.domain     - gdbName chicago.domain -sid boston     - initParams instance_name=boston -createAsStandby     - customScripts /tmp/test.sql 2.        Multi-Instance Redo Apply, Parallel, multi-instance recovery - when standby is RAC, all of its instances will use the MRP0 process for applying 3.        Supports Diagnostic Pack on Active Data Guard   AWR+ADDM Reports for Standby are kept in the Primary 4.        Supports Tuning Pack and SQL Plan Analyzer 5.        Fast Failover - Data Guard take over session draining (switchover to dallas_dr wait;)   Read-only sessions conne

Static routing

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Hi, Trying to configure dNFS with multipath I ran into the need of routing traffic from a specific devices (10G), this article describing how to do this in the Operating System (Centos/Redhat/Oracle). There are 2 different ways of configuring persistent static routes. The first approach requires adding entries for each device (NIC) to the files /etc/sysconfig/network-scripts/route-eth[X] For eth0, the file would be /etc/sysconfig/network-scripts/route-eth0 Example: echo "192.168.10.30 via 192.168.10.10" >> /etc/sysconfig/network-scripts/route-eth0 echo "192.168.10.32 via 192.168.10.12" >> /etc/sysconfig/network-scripts/route-eth1 To add the routes instantly, run the script /etc/sysconfig/network-scripts/ifup-routes. It takes the device name as input. The script is always run at boot time so the static routes are recreated after reboots. Example: /etc/sysconfig/network-scripts/ifup-routes eth0 /etc/sysconfig/network-scripts/ifup-ro