EBS Volume Types and Snapshots

AWS offers a variety of EBS volume types. Learn about their features and how snapshots work.

We'll cover the following

EBS volume types

SSD, General Purpose – gp2

  • Baseline of 3 IOPS per GiB with a minimum of 100 IOPS
  • Burst up to 3000 IOPS (for volumes >= 334GB)
  • Up to 16,000 IOPS per volume
  • AWS designs gp2 volumes to deliver 90% of the provisioned performance 99% of the time. A gp2 volume can range in size from 1 GiB to 16 TiB.

SSD, Provisioned IOPS – i01

  • More than 16,000 IOPS
  • Up to 64,000 IOPS per volume
  • Up to 50 IOPS per GiB
  • Amazon EBS delivers the provisioned IOPS performance 99.9 percent of the time.

HDD, Throughput Optimized – st1

  • Frequently accessed throughput intensive workloads with large datasets and large I/O sizes, such as MapReduce, Kafka, log processing, data warehouse, and ETL workloads
  • Throughput measured in MB/s and includes the ability to burst up to 250 MB/s per TB, with a baseline throughput of 40 MB/s per TB and a maximum throughput of 500 MB/s per volume
  • Cannot be a boot volume

HDD, Cold – sc1

  • Lowest cost storage — cannot be a boot volume
  • Less frequently accessed workloads with large, cold datasets
  • These volumes can burst up to 80 MB/s per TB, with a baseline throughput of 12 MB/s per TB and a maximum throughput of 250 MB/s per volume.

Magnetic (Standard)

  • Cheap, infrequently accessed storage that can be a boot volume
  • Delivers around 100 IOPS on average

EBS optimized instances

  • Dedicated capacity for Amazon EBS I/O
  • EBS-optimized instances are designed for use with all EBS volume types.
  • Max bandwidth: 400 Mbps – 12000 Mbps
  • IOPS: 3000 – 65000
  • GP-SSD within 10% of baseline and burst performance 99.9% of the time
  • PIOPS within 10% of baseline and burst performance 99.9% of the time
  • Additional hourly fee
  • Available for select instance types
  • Some instance types have EBS-optimized enabled by default.

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