A
An API is an interface that enables software applications to communicate with each other, exchange data and provide functions.
The Adaptive Replacement Cache (ARC) is an intelligent caching algorithm that stores frequently and recently used data in RAM to optimize data storage access times.
Asynchronous replication is a method of data replication in which changes are transmitted from a primary system to a secondary system with a time delay, rather than instantly.
An All-Flash Array (AFA) is a data storage system that uses only solid-state drives (SSDs) instead of traditional hard disk drives (HDDs) to deliver high performance and low latency.
B
Business continuity refers to the strategic and operational measures a company puts in place to ensure that essential functions can continue during and after a disruption such as a cyberattack, hardware failure, or natural disaster.
Block storage is a data storage architecture in which data is divided into evenly sized blocks and stored individually, each with its own unique address. It is commonly used in enterprise environments for databases, virtualization, and high-performance applications.
Backup and restore refers to the processes of copying and preserving data so it can be recovered and restored in case of loss, damage, or corruption. It is a core component of data protection and business continuity strategies.
C
A clone is a writable copy of a snapshot that behaves like an independent dataset but shares the same underlying data blocks. Clones are created instantly and consume minimal additional storage until data is modified.
Compression in data storage refers to the process of reducing the size of data blocks before they are written to disk, saving space and improving storage efficiency, often without losing any information.
Cyber resilience is an organization’s ability to prepare for, withstand, respond to, and recover from cyberattacks or system failures while continuing to operate essential business processes
D
Deduplication is a data reduction technique that eliminates redundant copies of data, storing only unique blocks to save storage space and improve efficiency.
Data integrity refers to the accuracy, consistency, and reliability of data throughout its lifecycle- ensuring that it remains complete, unaltered, and trustworthy during storage, processing, and transfer.
Data archiving refers to the process of storing infrequently accessed data in a secure, long-term location for compliance, historical reference, or cost efficiency.
Data corruption refers to unintended changes to digital data caused by hardware issues, software errors, or external factors, resulting in unreadable, incorrect, or lost information.
Data Loss Prevention (DLP) refers to technologies and strategies used to detect, prevent, and respond to unauthorized access, transmission, or deletion of sensitive data-across endpoints, networks, and storage.
Data migration is the process of transferring data between systems, storage technologies, or formats- ensuring that it remains accessible, consistent, and usable in its new location.
Data resilience is the ability of a storage system to maintain data availability, integrity, and recoverability despite hardware failures, cyberattacks, or operational disruptions.
Data sprawl refers to the uncontrolled growth and dispersion of data across multiple systems, devices, applications, and storage locations- making it difficult to manage, secure, or analyze effectively.
Disaster Recovery (DR) refers to the strategies, processes, and technologies used to restore IT systems and data after a disruption, ensuring business continuity and minimal downtime.
E
Encryption is the process of transforming readable data into an unreadable format to prevent unauthorized access—ensuring confidentiality during storage or transmission.
Enterprise data storage refers to scalable, high-performance storage systems designed for businesses that require large volumes of data to be stored, accessed, and protected reliably.
Erasure coding is a data protection method that breaks data into fragments, adds redundancy through parity blocks, and distributes them across multiple drives or systems for fault tolerance and storage efficiency.
F
Failover is the automatic switching of services from a failed system component to a standby component to ensure continued availability and minimal downtime.
Fibre Channel (FC) is a high-speed network technology primarily used to connect storage systems in enterprise SAN environments- offering low latency, high throughput, and reliable data transmission.
File storage is a data storage method that organizes and stores data as files in a hierarchical directory structure, commonly used in NAS systems and file servers.
A filesystem check (fsck) is a utility used to verify and repair the integrity of a file system after crashes, power loss, or data corruption.