Capacity RAID is a technology that creates a massive storage capacity by essentially combining several disks. RAID includes multiple levels, including RAID 0, 1, 5, and 6, to define parity information, disk redundancy, and data striping balance. For instance, if you construct RAID 5 with four 4 TB drives, you will have up to 12 TB of open space and 4 TB of blocked space for storing parity data

Data protection Although the preceding example might seem like a waste of 4 TB of capacity, parity information is essential for safeguarding NAS files from disk failure. A single drive failure can be tolerated with RAID 5. Depending on your RAID levels, there are different acceptable numbers of disk faults. RAID !≠ backup It's important to remember that RAID is not backup. Keeping backups of critical data on several devices, including external drives, cloud storage, and distant servers, is crucial for data security.

Speed NAS offers significantly quicker data upload and download speeds since data is simultaneously written and read to numerous disks. The performance and response times will be comparable to your local disks if you utilize NVMe SSDs to build a volume.

Performance NAS relieves other networked devices of the burden of file serving because it is solely focused on file serving. Additionally, clients should anticipate improved performance because NAS is tailored to particular use cases (such as multimedia storage or huge data).

Easy setup The time required to set up and maintain the system is significantly decreased by NAS systems, which are frequently supplied with simplified scripts or even as appliances preconfigured with a streamlined operating system.

Accessibility Any network level device has access to NAS systems.

Fault tolerance To guarantee data integrity, NAS can be configured to enable erasure coding, a redundant array of separate drives, or replicated disks.