Cloud Computing Patterns, Mechanisms > Reliability, Resiliency and Recovery Patterns > Virtual Server Auto Crash Recovery
Virtual Server Auto Crash Recovery (Erl, Naserpour)
In the event that a virtual server’s operating system crashes, how can the hosted cloud services be automatically recovered?
Problem
A virtual server whose operating system suddenly fails needs to be able to have its hosted cloud services automatically recovered.
Solution
The virtual server’s activity is constantly monitored and traced for recovery, in the event of an operating system failure.
Application
Applying this pattern involves specific techniques and mechanisms that are used by the hypervisor to check the operational status of the virtual server.
Mechanisms
Compound Patterns
Burst In, Burst Out to Private Cloud, Burst Out to Public Cloud, Cloud Authentication, Cloud Balancing, Elastic Environment, Infrastructure-as-a-Service (IaaS), Isolated Trust Boundary, Multitenant Environment, Platform-as-a-Service (PaaS), Private Cloud, Public Cloud, Resilient Environment, Resource Workload Management, Secure Burst Out to Private Cloud/Public Cloud, Software-as-a-Service (SaaS)
After the crash, Cloud Service A becomes available again.
The steps involved in applying this pattern are shown.
This pattern is covered in CCP Module 17: Advanced Cloud Virtualization.
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