Comparison of S3 storage classes and Glacier

The following table compares the three storage classes of S3 with glacier:

Description	Standard	Standard-IA	Reduced Redundancy	Glacier
Availability SLA	99.9%	99%	N/A	N/A
Concurrent facility fault tolerance	2	2	1	N/A
Availability	99.99%	99.9%	99.99%	N/A
Durability	99.999999999%	99.999999999%	99.99%	99.999999999%
First byte latency	milliseconds	milliseconds	milliseconds	Select minutes or hours
Life cycle transitions	yes	yes	yes	yes
Minimum object size	N/A	128 KB	N/A	N/A
Maximum object size	5 TB	5 TB	5 TB	40 TB
Minimum storage duration	N/A	30 days	N/A	90 days
Retrieval fee	N/A	per GB retrieved	N/A	per GB retrieved
SSL support	yes	yes	yes	yes
Storage class	object level	object level	object level	object level
Supported encryption at rest	AES-256	AES-256	AES-256	AES-256
Data retrieval time	immediately	immediately	immediately	minimum 3 to 5 hours
Recommended multipart upload size	100 MB	100 MB	100 MB	100 MB