Purpose of the Burst bucket

Question

GP2 - EBS Burst performance is 3000 IOPS means. If no ios are requested by an EC2 3000 IOPS will be stored. Since no one is requesting any Input or outputs, what it will store in the burst bucket? 

And what is the purpose of the Burst bucket? If it is not accumulating any data. when it will accumulate data. 

Please explain.

Answer 1

AWS provides an SLA of 3000 IOPS for GP2. As AWS SLA promises 3000 IOPS, it can handle a maximum of 3000 input/ output operations. So, as per your question, If there are no input/ output requests, then no data will be stored in the burst bucket.

the burst bucket will provide a metric where the data will be stored by providing the highest performance. The data that you will enter will be stored but as in the first question, you have asked about the iops. In that case if there are no inputs or outputs then there won't be any data to store. 

​But this burst bucket will store the data and give us high performance when compared to others.

For more detail check this aws tutorial.