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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
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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.
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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.
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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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