Data center storage

What is data center storage?

Data center storage refers to the hardware and software used to store and manage data in a data center environment. It typically includes storage devices and storage management software, and it operates within a broader data center environment that provides compute, networking, power, cooling, and security.

How does data center storage work?

Data center storage infrastructure works by connecting servers and applications to shared or dedicated storage systems through high-speed networks. Redundancy is built into most setups, so data is often written across multiple drives or systems so that if one fails, operations can continue with minimal disruption.

Storage administrators use management software that controls access, monitors capacity, and sets policies for how data is tiered or replicated. Scalability is enabled through scale-up and scale-out approaches that allow capacity to be adjusted as needed.

Data center storage also has backup and disaster recovery mechanisms, ensuring up-to-date or recent copies of data are available during outages. Infographic showing how data center storage works

Types of data center storage

There are several kinds of data center storage, including:

Direct-attached storage (DAS): Storage physically connected to a host device (often used for performance and latency-sensitive workloads).
Network-attached storage (NAS): Scalable storage that’s accessible in a local network by multiple servers simultaneously and is relatively simple to manage.
Storage area network (SAN): Dedicated high-speed network providing storage access to multiple servers, typically offering higher performance and more granular control than NAS.
Block, file, and object storage: Ways of organizing data within storage systems. File storage uses a hierarchical folder structure, block storage stores data as raw blocks that can be individually addressed and retrieved, and object storage stores data as self-contained objects with metadata and a unique identifier.

The mechanisms used in data center storage can be on-premises or in the cloud, and organizations can also opt for hybrid solutions combining both.

Why is data center storage important?

Data center storage is critical for modern business operations. Applications and transaction logs, for example, depend on reliable, accessible data, meaning operations can be disrupted or stop entirely when storage fails.

Storage is also critical for data backups and disaster recovery, since organizations rely on backups and replicated data to recover quickly from failures or attacks.

Finally, storage plays a key role in supporting compliance and protecting sensitive data, as it determines how data is stored, accessed, retained, and secured in line with regulatory requirements.

Where is data center storage used?

Common use cases of data center storage include:

Enterprise IT infrastructure: Supporting day-to-day business systems and internal operations.
Cloud and hybrid environments: Enabling scalable, flexible storage across on-premises and cloud systems.
Disaster recovery: Storing backups and replicated data for fast recovery after failures or attacks.
Virtualized environments: Supporting virtual machines managed by hypervisors that dynamically allocate resources.

Risks and privacy concerns

There are various risks associated with data center storage that require active management. Misconfiguration is a common security concern, particularly in cloud and enterprise storage environments, where incorrectly configured access controls or exposed storage buckets can unintentionally expose sensitive data. Unauthorized access is another significant concern that arises from factors like weak credentials and insufficient authentication.

Ransomware is another significant threat, as a single attack can potentially encrypt large volumes of stored data.

FAQ

What is the difference between NAS and SAN?

Network-attached storage (NAS) and storage area network (SAN) both provide centralized storage, but they vary in how they handle data. SAN delivers high-performance, low-latency block-level storage for critical applications like databases and virtualization, while NAS uses file-based storage, making it easier to manage and scale for file sharing and general storage.

Is data center storage the same as cloud storage?

Not quite: data center storage is the underlying infrastructure used to store and manage data, while cloud storage is a service that delivers storage over the internet. Cloud storage is typically built on data center storage but is accessed on demand without direct management of the hardware.

How does data center storage improve cybersecurity?

Data center storage enables controls like access management, encryption, and monitoring, helping to prevent unauthorized access and detect suspicious activity. Storage systems also support backups and replication, which help with recovery from incidents such as ransomware attacks.

What type of data center storage is best for backups?

Object storage is commonly used for backups because it prioritizes scalability and durability over performance, making it well-suited for workloads where speed is less critical. It can also handle high volumes of unstructured data, which accounts for a significant portion of enterprise data.

Can data center storage be encrypted?

Yes, data center storage can be encrypted to improve security, and this is often required or strongly recommended to meet compliance standards.