AWS Official Blog

Coming Soon – The I2 Instance Type – High I/O Performance Via SSD

by Jeff Barr | on | in Amazon EC2 | | Comments

Earlier today, Amazon.com CTO Werner Vogels announced the upcoming I2 instance type from the main stage of AWS re:Invent!

The I2 instances are optimized for high performance random I/O. They are a great fit for transactional systems and NoSQL databases like Cassandra and MongoDB.

The instances use 2.5 GHz intel Xeon E5-2670v2 processors with Turbo mode enabled. They also benefit EC2’s new enhanced networking. You will see significantly higher performance (in terms of packets per second), much lower latency, and lower jitter when you launch these instances from within a Virtual Private Cloud (VPC).

We’ll be releasing more information at launch time. Here are the preliminary specs to tide you over until then:

Instance Name vCPU Count RAM
Instance Storage (SSD)
i2.large 2 15 GiB 1 x 360 GB
i2.xlarge 4 30.5 GiB 1 x 720 GB
i2.2xlarge 8 61 GiB 2 x 720 GB
i2.4xlarge 16 122 GiB 4 x 720 GB
i2.8xlarge 32 244 GiB 8 x 720 GB

The i2.8xlarge instances will be able to deliver 350,000 random read IOPS and 320,000 random write IOPS. Numbers for the other instance types will be proportionally smaller, based on the number of SSD devices associated with the instance.

Stay tuned for more information about the I2 instances.

— Jeff;