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jskfan🇨🇾

Vsphere HA - Admission Control:
Vsphere HA - Admission Control:

Any Expert to explain the options of the Admission Control shown below:

User generated image

for instance if we put 0 in : Host  Failures Cluster tolerates
the meaning of the options in : Define host failover capacity by
Performance Degardation VM tolerates

Thank you

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Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)🇬🇧


Avatar of jskfanjskfan🇨🇾

ASKER

checked those links.. just general concept


 for instance if we put 0 in : Host  Failures Cluster tolerates

there will be no reservation of resources for the hosts, they can provide up to 100 % of resources available

and  if one ESX fails, then VMs that can be restarted on other ESX hosts they will be restarted and the ones that do not find enough Resources will not be restarted. ?

for other options:

Cluster Resources Percentage: this is clear
Slot Policy (Power on VMs) : this is NOT clear

Dedicated Failover Hosts : I believe they mean by putting ESX host as spare, it will not be used at all unless one of the ESX hosts in production fails

Performance Degradation VMs tolerate :  is the degradation on the VM or on the ESX host ? I believe they mean degardation on the ESX Host

ASKER CERTIFIED SOLUTION
Avatar of Mr Tortu(r)eMr Tortu(r)e🇫🇷

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Avatar of jskfanjskfan🇨🇾

ASKER

Thank you Guys...
I will come back to this  topic when I re-use the LAB

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VMware, a software company founded in 1998, was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies. VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture. Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.