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Oracle 11g R2
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Oracle ASM Spfile Stored in an ASM Disk Group - How it Works ?
I recently was asked an interesting question: "How is it possible to start the ASM instance if the spfile itself is stored in an ASM disk group? During ASM instance startup the disk groups themselves are closed, aren't they ?" Beginning with the version 11g Release 2, the ASM spfile is...
Mi, Jul 4 2012
RAC Member Kill Escalation
Managing a healthy cluster belongs to the most important goals of every cluster stack, and Oracle Clusterware is not an exception to this rule. To ensure cluster and data integrity unhealthy nodes should be forcefully evicted from a cluster. A node eviction will be initiated if: - cluster member cannot...
Mo, Nov 14 2011
Grid Infrastructure 22.214.171.124 and Multicasting
At the Oracle Open World 2011 in San Francisco Markus Michalewicz (Senior Principal Product Manager) announced in two sessions that there is a behavior change introduced with the 126.96.36.199 Patch Set regarding multicasting requirement for the cluster interconnect network. In the version 188.8.131.52 lack of...
Fr, Okt 7 2011
Oracle Enterprise Linux 5.6 fails to boot from multipath devices
Lately I've stared to work on a quite interesting Oracle Maximum Availability Architecture (MAA) project, with HP blades and Virtual Connect. From flexibility point of view the decision has been made to install operating system (Oracle Enterprise Linux 5.6) on a multipath LUN (no local hard drives...
Di, Jun 14 2011
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