Block Storage

Block Storage is a type of storage that stores data in blocks and serves as the primary storage for Compute Instances, holding the operating system and software.

To make a comparison with general computing, a Volume is like a disk on a PC, such as a Hard Disk Drive (HDD) or a Solid-State Drive (SSD). It functions as the PC's primary storage and is constantly being read from and written to. Because of this, performance metrics like IOPS (Input/Output Operations per Second) and Throughput (the number of transactions/requests that can be processed in a given time) are very important. This type of storage requires you to reserve a specific amount of space and its capacity is limited to that reservation, unlike Object Storage, which does not require reservation and offers virtually unlimited space.

Components

The components of Block Storage consist of:

• Volume: The storage unit used with a Compute Instance that is constantly being read and written to. It can be transferred to other projects.

• Snapshot: The backup component that saves the state of a Volume. It is used for restoring data or creating new Volumes.

Read more about Block Storage

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