Using HP Serviceguard for Linux with VMware

Figure. 2 Select Raw device mapping
In the next screen, select Raw Device Mappings as shown in Figure.2. If the RDM option is disabled,
it indicates that there is no free LUN available for mapping. If the LUNs are exposed to the ESX server
and if it is found that no LUNs are available for mapping, you may need to reboot the ESX server.
Make sure that all VMs are powered down when the ESX server is rebooted.
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