EBS HDD Storages - A Difference - AWS Certification

Understanding different EBS HDD Storages

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HDD (Hard-disk drives) are those storages that are useful for large sequential input-output operations. It is suitable for -

  • Large streaming workloads which require fast throughput at a low price
  • Suitable for large volumes of data which is infrequently access

In this read, we will take a good look at some of the differences between the different types of EBS HDSS storages. Let’s get started.

Attribute Throughput optmized HDD (st1) Cold HDD (sc1)
Description Useful for throughput intensive workloads which are frequently accessed Useful for less frequently accessed
Size 500 GB to 16 TB 500 GB to 16 TB
Maximum IOPS/Volume 500 250
Maximum Throughput/Volume 500 MiB/s 250 MiB/s


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