Which three statements are correct regarding booting an ESXi Host from Fibre Channel SAN? (Choose three.)
A.
Direct connect topology is supported.
B.
Each host must have its own boot LUN.
C.
ESXi hosts do not require local storage.
D.
Multipathing to a boot LUN on an active-passive array is supported.
E.
Hosts can share one common boot LUN.
Explanation:
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.storage.doc/GUID-
8FAD881D-7A00-43C9-AB69-66DC7816968C.html
When you use boot from SAN with multiple ESXi hosts, each host must have its own boot LUN.
If you configure multiple hosts to share the same boot LUN, ESXi image corruption is likely to occur.
Multipathing to a boot LUN on active-passive arrays is not supported because the BIOS does not support multipathing and is unable to activate a standby path.
The correct answers are:- ABC
Direct connect topology is supported.
Each host must have its own boot LUN.
ESXi hosts do not require local storage.
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Agree. ABC is correct .
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.storage.doc/GUID-9004389B-E2C0-4BE5-811C-E4886E3B7450.html
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But D is a valid answer 🙁
http://pubs.vmware.com/vsphere-4-esxi-embedded-vcenter/index.jsp?topic=/com.vmware.vsphere.config_fc.doc_41/esx_san_config/requirements_and_installation/c_esx_esxi_boot_from_san_requirements.html
Although no clear documentation again for 6.5 🙁
SIGH !
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Multipathing support
Multipathing to a boot LUN on active-passive arrays is not supported because the BIOS does not support multipathing and is unable to activate a standby path
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but apparently things have changed
Select the specific SP and press Enter.
If you are using an active-passive storage array, the selected SP must be on the preferred (active) path to the boot LUN. If you are not sure which SP is on the active path, use your storage array management software to find out. The target IDs are created by the BIOS and might change with each reboot.
SOOOOOOOO … D IS A VALID OPTION in 6.5
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Not much info on this topic >> Direct connect topology is supported
the only cocurance is for version 4.1 🙁
So my suggestion for answers are :
BCD
YET ANOTHER DODGY QUESTION !! Really VMware ???
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nothing changed is still same https://pubs.vmware.com/vsphere-4-esx-vcenter/index.jsp?topic=/com.vmware.vsphere.config_fc.doc_40/esx_san_config/requirements_and_installation/c_esx_esxi_boot_from_san_requirements.html
ABC is good
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Update :
SAN connections must be through a switched topology if the array is not certified for direct connect topology. If the array is certified for direct connect topology, the SAN connections can be made directly to the array. Boot from SAN is supported for both switched topology and direct connect topology if these topologies for the specific array are certified.
Vsphere 5.0
https://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc_50%2FGUID-8FAD881D-7A00-43C9-AB69-66DC7816968C.html
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good luck trying to find any info here
https://pubs.vmware.com/vsphere-6-5/index.jsp
YAWN !!
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ABC Noted above but here they are consolidated with links
Multipathing support
Multipathing to a boot LUN on active-passive arrays is not supported because the BIOS does not support multipathing and is unable to activate a standby path
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.storage.doc/GUID-28B91F45-C5A8-4E24-8D09-F1C47C21CBF0.html
When you use boot from SAN with multiple ESXi hosts, each host must have its own boot LUN.
If you configure multiple hosts to share the same boot LUN, ESXi image corruption is likely to occur.
Multipathing to a boot LUN on active-passive arrays is not supported because the BIOS does not support multipathing and is unable to activate a standby path.
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.storage.doc/GUID-8FAD881D-7A00-43C9-AB69-66DC7816968C.html
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