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Solution: Oracle VM Server Reboots

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Solution: Oracle VM Server Reboots
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By Roddy Rodstein 04/06/2015

This post is applicable to all Oracle VM Releases, Oracle Exadata X5-2, Oracle Exalogic, Oracle Database Appliance (ODA), and the Oracle Virtual Compute Appliance (VCA).
 
I’m Roddy Rodstein from Mokum. I have been supporting Oracle VM since Oracle VM’s very first release, in 2007. Since 2007, from my experience, the number 1 root cause of Oracle VM outages has been due to OCFS2 automatic server reboots. OCFS2 automatic server reboots occur due to storage or network interrupts, and by design OCFS2 responds to storage or network interrupts by rebooting the affected Oracle VM Servers. Unfortunately, the Oracle VM OCFS2 automatic server reboot functionally can not be disabled. Clustered Oracle VM Servers are subject to OCFS2 automatic server reboots during regular daily operations, and even during scheduled maintenance windows. For example, over the years we have supported many scheduled service windows maintaining server hardware, network and storage gear, and OCFS2 responds by rebooting Oracle VM Servers, along with rebooting business critical Oracle virtual machines. Fortunately there is a solution to eliminate OCFS2 automatic Oracle VM Server reboots. The solution is to design and deploy non-clustered Oracle VM Server Pools. Non-clustered Oracle VM Server Pools are a feature within the Oracle VM for x86 software distribution.
 
 

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About Mokum Solutions, Inc.
Founded in March 2011, Mokum Solutions, Inc. specializes in the implementation, delivery and support of Oracle technologies in private and public clouds. Mokum was established by Mr. Roddy Rodstein, one of the most respected Oracle Cloud Computing experts, having designed and managed many of the world’s largest and most complex Oracle clouds. Mokum is leading the way in Oracle Cloud computing through the use of a broad Oracle solution offering starting with the Oracle VM product line, OpenStack, Oracle Enterprise Manager, Oracle Linux, Exadata, Exalogic, Oracle Database Appliance, and the Oracle Virtual Compute Appliance.
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Roddy Rodstein Roddy is one of the most respected Oracle Cloud experts in the Oracle community, having designed, architected, and managed many of the worlds largest and most complex public, private and hybrid Oracle Clouds. Mr. Rodstein spent six years at Citrix and three years at Oracle supporting virtualization, cloud computing and application delivery solutions for Global 100, Fortune 500, and SMB customers. Prior to joining Citrix and Oracle, Mr. Rodstein established, owned, and operated a consulting business that specialized in virtualization and application delivery.Roddy joined Oracle' Virtualization and Linux team from its inception in 2008. In March 2011, Roddy established Mokum Solutions, Inc.. "While at Oracle, there was not a single Oracle Partner in North America able to design, deploy and support public, private and hybrid Oracle VM Clouds. In fact, that was my inspiration to establish Mokum." Mr. Rodstein's professional achievements also extend to blogging, writing and self-publishing industry reference guides: The Underground Oracle VM Manual, The Oracle Cloud Cookbook as well as the development and ongoing management of the only independent Oracle social media website, ITNewsCast.com.

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