PRIMECLUSTER allows a redundant configuration in a virtualization environment and also enables high reliability of the integrated system:
KVM environment
VMware environment
Oracle VM Server for SPARC environment
Oracle Solaris Kernel Zones environment
Oracle Solaris Zones environment
Previously, the cluster system has been built and operated with different servers for each service.
However, it has become possible to integrate multiple services by supporting virtualization environments.
Within a server, CPU resources can be allocated and operated for each service.
Figure 1.4 Existing cluster system and cluster system in a virtualization environment (For example, KVM environment)
By installing PRIMECLUSTER into each host OS and guest OS, you can immediately switch servers in the event of an operating system error as well as an application error.
Figure 1.5 Cluster system in a virtualization environment (For example, KVM environment)
Install PRIMECLUSTER into guest OSes only.
When an error of applications or operating systems occurs, you can safely and securely switch servers with I/O fencing using shared disks.
Figure 1.6 Cluster system in a virtualization environment (For example, VMware environment)
Oracle VM Server for SPARC environment
By installing PRIMECLUSTER into control domain and guest domains, you can immediately switch servers in the event of a guest domain error as well as a partition error.
Figure 1.7 Cluster system in a virtualization environment (For example, Oracle VM Server for SPARC environment)
Oracle Solaris Kernel Zones environment
By installing PRIMECLUSTER into a control domain or a guest domain after creating Kernel Zones in a control domain or a guest domain, you can immediately switch servers in the event of a domain error as well as a partition error.
Figure 1.8 Cluster system in a virtualization environment (For example, Oracle Solaris Kernel Zones environment on Control Domain)
Figure 1.9 Cluster system in a virtualization environment (For example, Oracle Solaris Kernel Zones environment on Guest Domain)
Oracle Solaris Zones environment
By installing PRIMECLUSTER into the global zone, you can switch each server when an error occurs in the global zone.
Moreover, by installing PRIMECLUSTER into non-global zones, you can switch each non-global zone when an error occurs in applications.
Figure 1.10 Cluster system in a virtualization environment (For example, Oracle Solaris Zones environment)
