After reboot, vmware Host could not be booted

DP230
DP230 used Ask the Experts™
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Hi, we could not start the vmware physical host after rebooted. It stuck in the black screen. I also noticed that 1 of 2 SAN switch was on orange light. SAN storage is still okay. Can you please suggest?
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
disconnect all cables from the host, and reboot and try again.

It could be polling the SAN, which causes this lock.

Were any LUNs removed before the restart ?
DP230Network Administrator

Author

Commented:
no, I just shut it down from vSphere client, did not remove any LUN
VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017
Commented:
disconnect all cables from the host, and reboot and try again.
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DP230Network Administrator

Author

Commented:
hi, problem solved after we choose Legacy boot instead of UEFI
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
How did BIOS settings change someone been fiddling!
DP230Network Administrator

Author

Commented:
I'm not sure how it changed, but thanks for your suggestions

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