Block Storage

Block storage is a type of data storage method where data is stored and retrieved in fixed-sized blocks or chunks, typically ranging from a few kilobytes to several megabytes in size. These blocks are assigned unique identifiers, known as block addresses, and are organized in logical block addressing (LBA) schemes.

In block storage, data is accessed and written to the storage media in a random access manner, meaning that any block can be accessed or modified at any time, without the need to read or modify adjacent blocks. This makes block storage ideal for use in applications that require fast and efficient access to data, such as databases, virtualization systems, and high-performance computing.

Block storage is commonly used in storage area networks (SANs) and cloud computing environments, where it allows multiple servers to access a shared pool of storage resources. Examples of block storage technologies include traditional hard disk drives (HDDs), solid-state drives (SSDs), and storage arrays such as network-attached storage (NAS) and storage area networks (SANs)