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Design Cost-Optimized Architectures
hard
Based on the exhibit, the team wants to minimize compute cost for a workload with a steady 24/7 baseline and a separate nightly batch job that can be interrupted and resumed from checkpoints. They also expect to change EC2 instance families during the year as performance needs evolve. Which approach is the best fit?
Exhibit
AWS Cost Explorer summary: Baseline web tier: 8 instances running 24/7, average utilization 35%-45% Nightly batch tier: 4 instances from 22:00-04:00 UTC Batch logs: 22:14 UTC: Spot interruption notice received 22:14 UTC: checkpoint saved to S3 22:17 UTC: job resumed on new instance Architecture notes: Batch jobs are restartable and tolerate interruption Operations wants freedom to switch instance families if needed