Block storage is commonly utilised in scenarios requiring high performance, availability, and reliability, such as online transactional databases (OLTP) in the financial services sector. To ensure rapid response to transactions, infallible data integrity, and 24/7 availability, banks employ an OLTP database paired with a block storage system.

Block storage plays an essential role in strengthening the security of ultra-sensitive data. By using robust encryption, it provides effective protection against the residual risks of data extraction within availability zones. This ensures that ultra-sensitive data remains inaccessible to unauthorised access, guaranteeing optimum security.

For critical applications that do not tolerate any data loss, the SAN synchronous replication system between the two sites enables a zero RPO (or "last disk write") to be achieved. In a meta-replication storage volume, the SAN virtualisation controllers work together to perform write operations on both sites simultaneously.