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	<title>EveryDay Practical Solutions for an Oracle&#124;SQL Server DBA &#187; FAQ/Concepts</title>
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	<link>http://www.oracledbasupport.co.uk</link>
	<description>This is my (Sagar PATIL ) blog to list day to day issues</description>
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		<title>How does the failover mechanism work?</title>
		<link>http://www.oracledbasupport.co.uk/how-does-the-failover-mechanism-work/</link>
		<comments>http://www.oracledbasupport.co.uk/how-does-the-failover-mechanism-work/#comments</comments>
		<pubDate>Wed, 05 Nov 2008 18:22:52 +0000</pubDate>
		<dc:creator>Sagar Patil</dc:creator>
				<category><![CDATA[FAQ/Concepts]]></category>
		<category><![CDATA[RAC]]></category>
		<category><![CDATA[TAF/Failover]]></category>
		<category><![CDATA[cluster members]]></category>
		<category><![CDATA[cluster membership]]></category>
		<category><![CDATA[cluster services]]></category>
		<category><![CDATA[CSS]]></category>
		<category><![CDATA[failover]]></category>
		<category><![CDATA[member]]></category>
		<category><![CDATA[Membership]]></category>
		<category><![CDATA[node]]></category>
		<category><![CDATA[nodes]]></category>
		<category><![CDATA[work]]></category>

		<guid isPermaLink="false">http://www.oracledbasupport.co.uk/?p=150</guid>
		<description><![CDATA[RAC relies on the cluster services for failure detection. The cluster services are a distributed kernel component that monitors whether cluster members (nodes) can communicate with each other and, through this process,enforces the rules of cluster membership. In Oracle Database 10g, this function is performed by CSS, through the CSSD process. The functions performed by [...]]]></description>
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		<title>TAF can be verified by querying the Oracle-provided views</title>
		<link>http://www.oracledbasupport.co.uk/taf-can-be-verified-by-querying-the-oracle-provided-views/</link>
		<comments>http://www.oracledbasupport.co.uk/taf-can-be-verified-by-querying-the-oracle-provided-views/#comments</comments>
		<pubDate>Wed, 05 Nov 2008 18:22:00 +0000</pubDate>
		<dc:creator>Sagar Patil</dc:creator>
				<category><![CDATA[FAQ/Concepts]]></category>
		<category><![CDATA[RAC]]></category>
		<category><![CDATA[TAF/Failover]]></category>
		<category><![CDATA[data]]></category>
		<category><![CDATA[data dictionary]]></category>
		<category><![CDATA[failover]]></category>
		<category><![CDATA[Implementation]]></category>
		<category><![CDATA[information]]></category>
		<category><![CDATA[NONE]]></category>
		<category><![CDATA[SID USERNAME]]></category>
		<category><![CDATA[TAF]]></category>
		<category><![CDATA[TAF implementation]]></category>

		<guid isPermaLink="false">http://www.oracledbasupport.co.uk/?p=151</guid>
		<description><![CDATA[Implementation of TAF can be verified by querying the Oracle-provided data dictionary views. V$SESSION has three columns, FAILOVER_MODE, FAILOVER_TYPE, and FAILED_OVER, that provide information pertaining to TAF implementation, and verification of results when the node in the cluster crashes and the session fails over to one of the available nodes. SELECT SID, USERNAME, FAILOVER_TYPE, FAILOVER_METHOD, [...]]]></description>
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		<item>
		<title>Why RAC need a VIP (Virtual IP address)</title>
		<link>http://www.oracledbasupport.co.uk/why-rac-need-a-vip-virtual-ip-address/</link>
		<comments>http://www.oracledbasupport.co.uk/why-rac-need-a-vip-virtual-ip-address/#comments</comments>
		<pubDate>Wed, 16 Apr 2008 21:48:09 +0000</pubDate>
		<dc:creator>Sagar Patil</dc:creator>
				<category><![CDATA[FAQ/Concepts]]></category>
		<category><![CDATA[RAC]]></category>
		<category><![CDATA[a RAC]]></category>
		<category><![CDATA[Clusters]]></category>
		<category><![CDATA[interface]]></category>
		<category><![CDATA[IP packets]]></category>
		<category><![CDATA[MAC address]]></category>
		<category><![CDATA[networking]]></category>
		<category><![CDATA[VIP]]></category>
		<category><![CDATA[VIPReal]]></category>
		<category><![CDATA[Virtual IP Address]]></category>

		<guid isPermaLink="false">http://www.oracledbasupport.co.uk/2008/04/16/why-rac-need-a-vip-virtual-ip-address/</guid>
		<description><![CDATA[Importance of VIPReal Application Clusters in 10g, however, don&#8217;t particularly want you to connect to physical IP address associated with network interface. Doing so means IP packets are routed to a physical MAC address, so that if that address ever ceases to exist (such as when a server dies), we have to wait for TCP/IP [...]]]></description>
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		</item>
		<item>
		<title>10g RAC Management Commands</title>
		<link>http://www.oracledbasupport.co.uk/basic-rac-management-commands/</link>
		<comments>http://www.oracledbasupport.co.uk/basic-rac-management-commands/#comments</comments>
		<pubDate>Wed, 12 Mar 2008 12:09:00 +0000</pubDate>
		<dc:creator>Sagar Patil</dc:creator>
				<category><![CDATA[Basic Admin]]></category>
		<category><![CDATA[FAQ/Concepts]]></category>
		<category><![CDATA[RAC]]></category>
		<category><![CDATA[ASM]]></category>
		<category><![CDATA[CRS]]></category>
		<category><![CDATA[database instances]]></category>
		<category><![CDATA[init]]></category>
		<category><![CDATA[Starts]]></category>
		<category><![CDATA[status]]></category>
		<category><![CDATA[stop]]></category>

		<guid isPermaLink="false">http://www.oracledbasupport.co.uk/2008/03/12/basic-rac-management-commands/</guid>
		<description><![CDATA[crs_stat -t Shows HA resource status crsstat Ouptut of crs_stat -t formatted nicely ps -ef&#124;grep d.bin crsd.bin evmd.bin ocssd.bin crsctl check crs CSS,CRS,EVM appears healthy crsctl stop crs Stop crs and all other services crsctl disable crs* Prevents CRS from starting on reboot crsctl enable crs* Enables CRS start on reboot crs_stop -all Stops all [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>RAC &#124; How to use SRVCTL Command</title>
		<link>http://www.oracledbasupport.co.uk/srvctl-commands/</link>
		<comments>http://www.oracledbasupport.co.uk/srvctl-commands/#comments</comments>
		<pubDate>Mon, 25 Feb 2008 18:10:00 +0000</pubDate>
		<dc:creator>Sagar Patil</dc:creator>
				<category><![CDATA[Basic Admin]]></category>
		<category><![CDATA[FAQ/Concepts]]></category>
		<category><![CDATA[RAC]]></category>
		<category><![CDATA[Database]]></category>
		<category><![CDATA[database service]]></category>
		<category><![CDATA[information]]></category>
		<category><![CDATA[list]]></category>
		<category><![CDATA[status]]></category>

		<guid isPermaLink="false">http://www.oracledbasupport.co.uk/2008/02/25/srvctl-commands/</guid>
		<description><![CDATA[Check out current configuration information srvctl config database Displays the configuration information of the cluster database. srvctl config service Displays the configuration information for the services. srvctl config nodeapps Displays the configuration information for the node applications. srvctl config asm Displays the configuration for the ASM instances on the node. Summary of srvctl commands. Command [...]]]></description>
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