Using HP Serviceguard for Linux with VMware virtual machines - Technical white paper
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Figure 4. Select Raw Device Mappings
In the next screen, as shown in figure 5, select the target LUN.
Figure 5. Select LUN
In the next screen, select a disk to keep the LUN mapping file, as shown in figure 6. Virtual machines running on the same
ESX server can map to this device as to any other virtual disk. This is useful in cluster-in-a-box configurations.