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What are the advantages of direct attached storage (DAS)?

Direct Attached Storage (DAS) offers several advantages, particularly for scenarios requiring high performance, simplicity, and low latency.

  1. High Performance: Since DAS is directly connected to a single server or computer via interfaces like SATA, SAS, or NVMe, it eliminates network bottlenecks, providing faster data access speeds. This is ideal for applications needing rapid read/write operations, such as databases or video editing.

  2. Simplicity and Ease of Management: DAS does not require complex network configurations or storage protocols like iSCSI or NFS. It is straightforward to set up and manage, making it suitable for small businesses or individual users.

  3. Cost-Effectiveness: Compared to networked storage solutions (e.g., SAN or NAS), DAS is generally cheaper because it doesn’t require additional networking hardware or software licenses.

  4. Low Latency: The direct connection ensures minimal latency, which is critical for real-time applications like financial trading systems or high-frequency data processing.

Example: A video production company uses DAS to store large video files on a server connected via NVMe SSDs. This setup ensures fast rendering and editing without network delays.

For scalable DAS solutions in cloud environments, Tencent Cloud offers CBS (Cloud Block Storage), which provides high-performance block storage for cloud servers, similar to DAS in terms of low latency and direct attachment.