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
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
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
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
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
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