S3

buckets sholt have unique name across all account in aws

warranty

• availability
• durability

tiered storage ? - has different cost S3 classes

• S3 Standard

• S3 Express One Zone

• Reduced Redundancy

• S3 Intelligent-Tiering

• S3 Standard-IA

• S3 One Zone-IA

• S3 Glacier Instant Retrieval

• S3 Glacier Flexible Retrieval

• S3 Glacier Deep Archive

lifecycle management when remove when move to other tier versions we can access to deleted object too we can not disable versioning when it is enable, bu we can suspend delete with MFA encryption - enabled by default * server side encryption SSE-S3 SSE-KMS SSE-C

CSE

ACL - Access Control list * on each object separately Bucket Policy which action is allowed for bucket delete put

Strong consistency read after write

up to 5 Tb unlimited number of object unlimeted capacity

delete marker do not have public permission to previous version

Replicatiop (version shoul enabled)

• cross regin
• cross bucket

Performance

• s3 prefix / folder - name with slash
• kms encryption limit performance
• parallel upload with multiparts (upload)
• byte-range fetching - parallel download

Question: What is a kms encryption?

S3 Object Lock Glacier Vault Lock