Cost Optimization - Storage Flashcards

1
Q

S3 - Characteristics

A
  • Use lifecycle rules to transition objects between classes and expired objects
  • Use caching to avoid unnecessary downloads, and reduce S3 costs
  • Lifecycle rules can be configured to abort all multipart uploads that are failing to complete in a specific time period
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2
Q

S3 - Standard and One Zone cost

A
  • It’s applied at object level. A bucket can store objects of different classes
  • Fees apply per GB storage and retrieval
  • Standard: the most expensive class for storage. The least expensive for data retrieval, as Intelligent-tiering
  • Standard IA: less expensive than Standard for storage. More expensive than Standard for data retrieval, as One Zone IA
  • One Zone IA: less expensive than Standard IA for storage. More expensive than Standard for data retrieval, as Standard IA
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3
Q

S3 - Intelligent-tiering cost

A
  • Provides four sub-tiers: Frequent Access, Infrequent Access, Archive Access, and Deep Archive access
  • Data storage cost: FA-tier cost the same as Standard. IA-tier cost the same as Standard IA. Archive cost the same as Glacier. Deep Archive cost the same as Glacier Deep Archive
  • Retrieval cost: the same as Standard, but has an additional cost for lifecycle transition request
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4
Q

S3 - Glacier and Glacier Deep Archive cost

A
  • Glacier: less expensive than One Zone IA for storage. More expensive than One Zone IA for data retrieval
  • Glacier Deep Archive: the least expensive for storage. The most expensive for data retrieval
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5
Q

EBS - Considerations

A
  • Define the proper storage for your workload
  • Delete EBS volumes that are no longer required. For example delete non-root volumes after deleting an EC2 instance
  • Monitor EBS storage with CloudWatch
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6
Q

EBS - EBS Volumes cost

A
  • HDD: throughput optimized HDD and cold HDD are priced by storage only
  • SSD:
  • General purpose SSD are charged by three things: per GB saved, IOPS per month, and MB/s per month (throughput). Less expensive than Provisioned IOPS
  • Provisioned IOPS SSD are charged by two things: per GB saved, and IOPS per month. More expensive than General Purpose
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