Amazon EBS Throughput Optimized HDD volumes
HDD Volumes offering up to 500 MB/s of throughput per volume
Throughput Optimized HDD (st1) volumes provide low-cost magnetic storage that defines performance in terms of throughput rather than IOPS. This volume type is a good fit for frequently accessed, large, sequential I/O workloads such as Amazon EMR, ETL, data warehouses, and log processing. Bootable st1 volumes are not supported and we recommend that customers with workloads performing small, random I/O use gp3. For more information, see Inefficiency of small read/writes on HDD.
Benefits
High throughput for frequently accessed workloads
Throughput Optimized HDD volumes are backed by hard disk drives (HDDs) and they are ideal for frequently accessed, throughput-intensive workloads with large datasets and large I/O sizes, such as MapReduce, Kafka, log processing, data warehouse, and ETL workloads. These volumes deliver performance, measured in MB/s of throughput, and include 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.
Lowest Cost of Throughput
Throughput Optimized HDD volumes offer the lowest cost for the amount of baseline throughput delivered, with baseline throughput of 40 MB/s per TB and bursting of up to 250 MB/s per TB and 500 MB/s per volume. For customers looking to cost-effectively support high throughput, IO intensive workloads, ST1 can be an ideal solution.
Product Details
Volume type |
Throughput Optimized HDD (st1) |
Durability |
99.8% - 99.9% durability (0.1% - 0.2% annual failure rate) |
Use cases |
Big data Data warehouses Log processing |
API Name |
st1 |
Volume size |
125 GiB - 16 TiB |
Max IOPS per volume (1 MiB I/O) |
500 |
Max throughput per volume |
500 MiB/s |
Max throughput per instance |
10,000 MB/s |
Amazon EBS Multi-attach |
Not supported |
Price |
$0.045 / GB-mo (N. Virginia) |
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