i am sort of confused on this. Is interruption possible in on-demand instance like spot-instance?

Question

Anirudh C S · Accepted Answer

On-Demand instances (ODI) cannot be interrupted by AWS, no matter what, since you are paying the required amount without any discount. Spot instances can be interrupted because, if Amazon gives you a discount and you only have to pay that much for the whole time, then they will be making a loss compared to you using ODI. That is why, Spot instances are terminated. Think of it like this, ODI is a rented house that you live in, where you pay the rent monthly to the landlord, where you live for a longer time than a few months. Whereas Spot instances are like a hotel room you took during a vacation to some place. You don't use it for a long time.

Anirudh C S · Answer

Maybe, you are thinking if ODI are not interruptible, why do we need On-Demand Capacity Reservation(ODCR)? ODCR makes sure that you get the amount of computing resources you asked for in a specific AZ, for the amount of time you required. In ODI you cannot guarantee the specific AZ that you require has the computing resources to run the servers that you want, at the time you want.

kareemullah shaik · Answer

no, on- demand cannot be interrupted like spot instances.

i am sort of confused on this. Is interruption possible in on-demand instance like spot-instance?

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