2V0-622 · Question #396
Which three sentences are correct about starting a c? (Select three)
The correct answer is B. Direct connection topology supported D. Each host must have his own boot LUN E. ESXi hosts do not require local storage. When booting ESXi from SAN, direct connection topology is supported, each host must have its own dedicated boot LUN, and no local storage is required. Shared boot LUNs and active-passive array multipathing are unsupported.
Question
Which three sentences are correct about starting a c? (Select three)
Options
- AMultipathing to a boot LUN on an active-passive array is supported
- BDirect connection topology supported
- CThe host can share a common boot LUN
- DEach host must have his own boot LUN
- EESXi hosts do not require local storage
How the community answered
(43 responses)- A5% (2)
- B93% (40)
- C2% (1)
Why each option
When booting ESXi from SAN, direct connection topology is supported, each host must have its own dedicated boot LUN, and no local storage is required. Shared boot LUNs and active-passive array multipathing are unsupported.
Multipathing to a SAN boot LUN on an active-passive array is not supported because path failover events during the boot sequence can cause I/O errors or data corruption before the multipathing software is fully initialized.
Direct connection topology - where the ESXi host connects directly to the storage array without an intermediate SAN switch - is a supported and documented configuration for SAN boot scenarios.
Multiple ESXi hosts sharing a single common boot LUN is not supported - each host would overwrite the other's host-specific configuration and persistent state data, resulting in conflicts and boot failures.
Each ESXi host must have its own dedicated boot LUN because the host writes host-specific configuration, state, and scratch data to the boot volume, making sharing between hosts impossible without corruption.
When configured to boot from SAN, ESXi hosts have no requirement for local storage because the boot image, VMFS datastores, and swap files can all reside entirely on the SAN-provided LUN.
Concept tested: ESXi SAN boot configuration requirements and restrictions
Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-5DB60B8E-9D4C-4B04-B2D2-2C0FF16EFAB7.html
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