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S3 (Storage classes (Infrequently Accessed Objects (ONEZONE_IA (the data…

- - - - 3 AZ or more
    - - Not recommended (Standard is more cost-effective)
      - durability 99.99%
      - 3 AZ or more
  - - - Infrequent access tier
        
        files bigger than 128KB
        
        files are be moved to this tier after 30days without access
      - Frequent access tier
        
        after accessing infrequent tier file it is automatically returned to frequent access tier
      - No retrieval fees
      - 3 AZ or more
  - - - resilient to the loss of an Availability Zone
      - greated availability
      - Use for your primary or only copy of data that can't be recreated.
      - 3 AZ or more
    - - the data is not resilient to the physical loss of the Availability Zone
      - as durable as STANDARD_IA but less available and less resilient
      - Use if you can recreate the data if the Availability Zone fails, and for object replicas when setting cross-region replication (CRR).
      - Availability 99.5%
      - 1 AZ
  - - - 1-5 minutes using expedited retrieval.
      - minimum storage duration - 90 days
      - Use for archives where portions of the data might need to be retrieved in minutes.
      - retrieval fee per GB
      - 3 AZ or more
    - - Use for archiving data that rarely needs to be accessed.
      - minimum storage duration - 180days
      - Retrieval time 12 hours
      - You can reduce DEEP_ARCHIVE retrieval costs by using bulk retrieval, which returns data within 48 hours.
      - retrieval fee per GB
      - 3 AZ or more
- - - - created by AWS
      - last modified date
      - object size
      - MD5 digest
      - HTTP content type
    - - optional
      - can be specified when object is created
      - custom tags
      - key/value pair
  - - - Performance optimization
      - Unlimited prefixes
- - - - if object bigger than 5GB use Multipart-Upload
  - - - replace object tag sets
      - modify access controls
      - restore archived objects from Glacier
      - run lambda
      - Copy objects between buckets
    - - s3 inventory report
      - csv
      - list of object keys
- - - - Bucket names must be a series of one or more labels. Adjacent labels are separated by a single period (.). Bucket names can contain lowercase letters, numbers, and hyphens. Each label must start and end with a lowercase letter or a number.
      - Bucket names must be at least 3 and no more than 63 characters long.
      - Bucket names must be unique across all existing bucket names in Amazon S3.
        
        bucket name can be reused after bucket was deleted (can take some time)
      - Bucket names must comply with DNS naming conventions.
      - Bucket names must not contain uppercase characters or underscores.
      - Bucket names must start with a lowercase letter or number.
      - Bucket names must not be formatted as an IP address (for example, 192.168.5.4).
      - When you use virtual hosted–style buckets with Secure Sockets Layer (SSL), the SSL wildcard certificate only matches buckets that don't contain periods. To work around this, use HTTP or write your own certificate verification logic. We recommend that you do not use periods (".") in bucket names when using virtual hosted–style buckets
      - Cannot be changed
    - - limit can be increased to 1000 buckets
- - - - suggested by AWS
    - - PUT
        
        Create object
        
        Update object
      - GET
        
        Read object
      - POST
        
        Create Object
        
        Update object
      - DELETE
        
        Remove Object
- - - - Vault access policies
      - IAM Policies
- - - - GET
        
        Range GETS
      - DELETE
      - PUT
      - Up to 5500 GET/s
        Up to 3500/s for
        POST/PUT/DELETE
        per prefix
- - - - each object is encrypted with a unique key.