5.5.9 Examples of hardware configurations (using SCSI reservation for shared disk and PC/AT-compatible systems from another company)
This subsection shows examples of hardware configurations with different hot-standby configurations when SCSI reservation for shared disk is used with PC/AT-compatible systems from another company. These examples assume the use of PC/AT-compatible systems from another company.
- Organization of this subsection
(1) 1-to-1 switchover configuration
The following figure shows an example of a hardware configuration that uses a 1-to-1 switchover configuration.
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![[Figure]](GRAPHICS/F0000255.GIF)
(2) 2-to-1 switchover configuration
The following figure shows an example of a hardware configuration that uses a 2-to-1 switchover configuration.
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![[Figure]](GRAPHICS/F0000256.GIF)
(3) Multi-standby configuration
The following figure shows an example of a hardware configuration that uses a multi-standby configuration.
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![[Figure]](GRAPHICS/F0000257.GIF)
(4) Cluster hot-standby configuration
The following figure shows an example of a hardware configuration that uses a cluster hot-standby configuration.
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![[Figure]](GRAPHICS/F0000258.GIF)
(5) VMware ESXi-based or KVM-based virtualization configuration
The following figure shows an example of a hardware configuration that uses a VMware ESXi-based or KVM-based virtualization configuration. In the case of a KVM-based configuration, virtual machines in the figure change to guest OSs.
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![[Figure]](GRAPHICS/F0000259.GIF)