Amazon EBS Throughput Optimized HDD volumes
HDD volumes offering up to 500 MB/s of throughput per volume
Overview
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 volumes. 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.
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.
Throughput-driven performance
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.
Product Details
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Specification
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Details
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Volume type
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Throughput Optimized HDD (st1)
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Durability
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99.8% - 99.9% durability (0.1% - 0.2% annual failure rate)
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Use cases
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Big data Data warehouses Log processing |
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API Name
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st1
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Volume size
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125 GiB - 16 TiB
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Max IOPS per volume (1 MiB I/O)
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500
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Max throughput per volume
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500 MiB/s
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Max throughput per instance
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12,500 MB/s
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Amazon EBS Multi-attach
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Not supported
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Price
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$0.045 / GB-mo (N. Virginia)
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