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What is the difference between a PC Hard Drive and CCTV DVR Hard Drive?

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High-Write Workloads

CCTV DVR Hard Drive

While PC data workloads require storage biased for read capability and small-block, random data transfers, video storage must be engineered for writing and large, sequential data blocks. In fact, the writing function can represent up to 95% of a hard drive’s operation in a surveillance application. Furthermore, the always-on nature of most video and surveillance environments intensifies the demands of such high-write workloads.

Seagate video and surveillance HDDs support video- streaming firmware designed and built for write performance. With this enhanced write functionality, the Seagate line of video-optimized drives ensures first-rate performance and better drive durability for DVR, media center or video security applications.

24×7 Reliability

One of the most important aspects of Seagate video- optimized drives is their ability to withstand always-on operational demands. Desktop hard drives do not include the application-specific features necessary to handle these environments. In contrast, Seagate video and surveillance HDDs are built to record data 24×7 from multiple camera streams or channels. While this increased workload can be mimicked on a desktop-class drive, the device will eventually fail under constant, 24×7 operation, resulting in compromises to both performance (the number of streams supported) and reliability. Video-optimized drives provide reliability benefits far beyond desktop drives, which are designed to run lighter workloads—perhaps only eight hours a day, five days a week. 

Additionally, the Seagate line of video and surveillance HDDs offers low-power profiles, which not only help with energy conservation, but also ensure cool operating temperatures and enhanced system reliability while working a 24×7 profile. Seagate video and surveillance HDDs also provide industry- leading AFRs, as measured in their respective environments— ensuring dependable storage for personal and critical video content. This means your DVR or surveillance systems are less expensive once deployed in the field—needing little maintenance or repair.

Leading Storage Technology

In conjunction with their ability to handle high-write workloads and 24×7 operation, Seagate video and surveillance HDDs feature industry-leading storage technology for today’s DVR and video security applications. 

Like many desktop drives on the market, Seagate video and surveillance HDDs deliver large capacity points, reaching up to 4TB of reliable data storage. Unlike budget-priced desktop drives, however, these video and surveillance HDDs combine high capacity with powerful dual processor technology and video-optimized write-cache management. This blend of features meets the storage needs of multiple, high-quality video streams, which are common in DVR and surveillance environments. Furthermore, it enables long-term retention of important video archives—a key need for many video security configurations. 

By melding high capacity points with the unique ability to withstand the vigorous demands of video environments, Seagate video and surveillance HDDs maximize cost-per- gigabyte performance, giving system builders and integrators the biggest bang for their buck!

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