A common question is "How would the client compare the performance of storage on Amazon vs. local data center? " Well here are some numbers for AWS storage:
a. Instance storage Disk : Equivalent to local disk for a server
b. Instance storage SSD
i. ~120,000 random read IOPS (4 KB blocks)
ii. ~10,000-85,000 random write IOPS (4 KB blocks)
c. EBS Standard (100 IOPS)
i. Reads typically <20ms writes typically <10ms
ii. Best effort to 10’s of MB/sec
d. EBS PIOPS (4K IOPS),
i. On best effort, you may get up to 40 MB/sec throughput for 2K PIOPS disk
f. Glacier : Long time archiving. Takes 3-5 hours to retrieve.
g. Storage Gateway : On premise to AWS S3 ‘replication’. So, will depend on the pipe (internet, AWS DirectConnect) from on premise to AWS.