On Windows Azure is there a difference between VM role and vm instances? -


in windows azure see references vm roles , vm instances. different ? 1 seems allow uploading of vm image use in platform as service (paas) , other allows on demand creation of vm images installation of applications traditional vps.

is out of date documentation ?

it depend upon context. have link documentation referring to?

in context of windows azure virtual machine phrase vm instance refer ability create virtual machine either gallery or ground up.

in context of cloud service (the paas model) both phrase vm role , vm instance apply. vm role in context definition of virtual machine run specific set of code. example, might have vm role defined processes orders or 1 computes number crunching algorithms. template if will, or role defined application. when define role indicate number of instances of role. in context of cloud service vm instance virtual machine running code defined role belongs to, there might ten more running exact same code.


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