Using HP Serviceguard for Linux with VMware virtual machines - Technical white paper

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Figure 6. Select Datastore
The next option is to select the compatibility mode. You should select Physical, as shown in figure 7. This allows the
guest OS to access the LUN directly.
Figure 7. Compatibility Mode
Virtual machines do not support HBAs and so LUNs are attached to virtual SCSI controllers. In the next screen (shown in
figure 8) the drop-down list shows SCSI (0:0), SCSI (0:1) …….. SCSI (0:15). The first number identifies the SCSI controller,
and the second is the sequence number of the LUN or disk. Select a separate SCSI controller, for example SCSI (1:x) for
the newly added LUNs, which reserves SCSI (0:x) for the nonshared disks and SCSI (1:x) for the shared LUNs.