Best Practices for Testing the Environment
Test the storage enivornment by doing the following:
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Boot the OS on the host server, and then disable the primary path to the SAN boot device to validate the multipath connection.
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Physically pull the cable from the system.
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Intentionally disrupt zoning at the FC switch that you plan to attach to the HBA.
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If you have installed any alternate boot LUNs, try to boot from those (after disrupting the primary connection(s)).
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Make sure the boot LUN is set as the first boot device in the system BIOS/UEFI settings.