Block Storage

Highly reliable, scalable and fast storage volumes for compute instances

The block storage service provides persistent storage volumes to compute instances on the Catalyst Cloud. When using it, there are no waiting or lead times. You can create or scale volumes up and down in seconds via the web dashboard or APIs.

Volumes are designed to be highly available and reliable. At no additional cost to you, data is replicated automatically within the region on multiple storage servers, increasing data durability and fault tolerance.

Block storage is suitable for workloads that require strong consistency, such as file systems and databases. They are presented to the operating system as a disk volume that can be formatted with your preferred file system or used as a raw block device. It also allows you to snapshot volumes to create point-in-time images of your volumes.


CRUD operations

Create, resize, delete storage volumes in seconds. Forget about waiting or lead times.

Read more


Data stored in the Porirua and Hamilton regions is automatically encrypted at rest using an AES 256-bit cipher.

Attach and detach

Attach or detach additional storage volumes to compute instances.

Read more


Snapshot volumes to create point-in-time images of your volumes. Snapshots can be used to clone a volumes or to roll back to a previous known state.

Read more


Storage type Description Price per GB hour (ex GST) Price per GB month (ex GST)
b1.standard Three replicas of your data stored on different servers within the same region on a combination of SSDs and HDDs. Limit of 1,000 IOPS per volume. $0.000416 $0.30

Learn More

Service Levels

A single block volume delivers 99.95% availability.