About Hyperdisk Throughput

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This document describes the features of Hyperdisk Throughput. Hyperdisk Throughput is best suited for cost-sensitive workloads, analytics workloads, and workloads that require less than 600 MiB/s of throughput.

For more information about Hyperdisk and the other Hyperdisk types, see About Hyperdisk.

You can specify up to 600 MiB/s of throughput for a single Hyperdisk Throughput volume. You can't provision an IOPS level, but each MiB/s of provisioned throughput comes with 4 IOPS, up to 2,400 IOPS.
Hyperdisk Throughput has a latency profile similar to hard-disk based storage, with average read latency of 10-30 milliseconds.

To create a new Hyperdisk Throughput volume, see Create a Hyperdisk volume.

Use cases

Hyperdisk Throughput is a good fit for the following use cases:

• Analytic workloads like Kafka and Hadoop
• Cold storage
• Data drives for cost-sensitive workloads

Machine series support

You can use Hyperdisk Throughput with the following machine series, however, C3-metal machine types aren't supported.

• C3
• C3D
• N2
• N2D
• T2D
• Z3
• H3
• A3 (H100)
• G2

About provisioned performance

You don't have to provision performance when you create Hyperdisk volumes. If you don't provision performance, Compute Engine creates the volume with default values that you can modify later. For details about default values, see Default IOPS and throughput values.

If you know your performance needs, you can specify IOPS and throughput limits for a Hyperdisk Throughput volume when you create the volume, and you can change the provisioned values after you create the volume. You can't specify an IOPS or throughput level if you don't specify a size.

Size and performance limits

The following limits apply to the size and throughput values you can specify for a Hyperdisk Throughput volume.

• Size: 2 TiB-32 TiB. The default size is 2 TiB.
• Throughput: 20-600 MiB/s, with the following restrictions:
  • Minimum throughput: provisioned throughput must be at least 10 times the volume's size in TiB.
  • Maximum throughput: provisioned throughput can be at most 90 times the volume's size in TiB, up to a maximum 600 MiB/s. For examples, see Limits for provisioned throughput.
• IOPS: you can't specify an IOPS limit for Hyperdisk Throughput volumes. Instead, the provisioned IOPS depends on the provisioned throughput. Each Hyperdisk Throughput volume is provisioned with 4 IOPS for each MiB/s of throughput, up to a maximum of 2,400 IOPS.

Limits for provisioned throughput

The following table lists the limits for configurable throughput for common volume sizes. If a size isn't listed, use the following formula to calculate the allowable values, where x is the volume's size in TiB:

• Minimum configurable throughput: 10x
• Maximum configurable throughput: MIN (90x, 600)

Size (GiB)	Minimum throughput (MiB/s)	Maximum throughput (MiB/s)
2,000	20	180
5,000	50	450
10,000	100	600
25,000	250	600
32,000	320	600

Default IOPS and throughput values

If you don't specify an IOPS or throughput limit when you create a Hyperdisk Throughput volume, Compute Engine assigns default values. The assigned value is based on the following formulas, where x is the volume's size in TiB.

• Default throughput: MIN (24x, 600) MiB/s
• Default size: 2 TiB

Change the provisioned performance or size

You can change the provisioned size every 6 hours and its throughput every 4 hours. To learn how to modify size or performance, see Modify a Hyperdisk volume.

Performance limits when attached to an instance

This section lists the performance limits for Hyperdisk Throughput. You can specify up to 600 MiB/s of throughput for a single Hyperdisk Throughput volume. You can't provision an IOPS level, but each MiB/s of provisioned throughput comes with 4 IOPS, up to 2,400 IOPS.

The following table lists the maximum performance that Hyperdisk Throughput volumes can achieve for each supported instance. A Hyperdisk Throughput volume's performance when it's attached to an instance can't exceed the limits for the instance's machine type. The performance limits are also shared across all Hyperdisk Throughput volumes attached to the same instance, regardless of each volume's provisioned performance.

Achieve higher performance with multiple Hyperdisk Throughput volumes

Certain instances can exceed the maximum performance for a single Hyperdisk Throughput volume —600  MiB/s. An instance can achieve these higher limits if you attach multiple Hyperdisk Throughput volumes to the instance.

If an instance's performance limit in the following table exceeds 600 MiB/s, then the instance can achieve that limit only if you attach multiple Hyperdisk Throughput volumes. For example, the performance limit for a c3-*-22 instance using Hyperdisk Throughput volumes is 1,200  MiB/s. Therefore, to achieve 1,200  MiB/s of throughput, you must attach at least two Hyperdisk Throughput volumes to the instance.

Disaster protection for Hyperdisk Throughput volumes

You can back up a Hyperdisk Throughput volume with standard snapshots. Snapshots back up the data on a Hyperdisk Throughput volume at a specific point in time.

Cross-zonal replication

You can't replicate Hyperdisk Throughput volumes to another zone. To replicate data to another zone within the same region, you must use Hyperdisk Balanced High Availability volumes.

Regional availability for Hyperdisk Throughput

Hyperdisk Throughput is available in all regions.

Hyperdisk Throughput Storage Pools

You can use Hyperdisk Throughput Storage Pools to simplify planning, avoid overprovisioning storage, and reduce costs. Hyperdisk Throughput Storage Pools let you to purchase Hyperdisk Throughput storage in bulk. To learn more, see About Hyperdisk Storage Pools.

Pricing

You're billed for the total provisioned throughput of your Hyperdisk Throughput volumes until you delete them. You incur charges even if the volume isn't attached to any instances or if the instance is suspended or stopped. For more information, see Disk pricing.

Limitations

• Hyperdisk Throughput volumes are zonal and can only be accessed from the zone where the volume was created.
• You can't create a machine image from a Hyperdisk Throughput volume.
• You can't create an instant snapshot from a Hyperdisk Throughput volume.
• You can't use Hyperdisk Throughput volumes as boot disks.
• You can change a Hyperdisk Throughput volume's size every 6 hours. You can change its throughput every 4 hours.

What's next

• Add a Hyperdisk Throughput volume to your VM
• Learn about Hyperdisk Storage Pools