ST9500620SS Seagate 500GB 7.2K RPM SAS-6GBPS HDD

Overview of Seagate ST9500620SS 7.2K RPM HDD

The Seagate ST9500620SS from the Constellation.2 series offers dependable enterprise-grade storage in a compact 2.5-inch form factor. Designed for intensive workloads, it delivers efficient performance with a 7,200 RPM spindle and high-speed SAS 6Gb/s interface.

General Details

• Brand: Seagate
• Part Number: ST9500620SS
• Drive Type: Hard Disk Drive

Performance Specifications

• Interface: SAS 6-Gbps
• Cache Size: 64 MB
• Total Capacity: 500 GB
• Max External Data Transfer Rate: 600 Mbps
• Rotational Speed: 7200 RPM
• Buffer Size: 64 MB

Physical Dimensions and Compatibility

• Form Factor: 2.5-inch small form factor (SFF)
• Drive Bay Height: 1/3H, compatible with standard enclosures
• Dimensions: 0.58" height × 2.76" width × 3.96" depth
• Approximate Weight: 6.46 ounces

Performance Advantages

• Fast 7.2K RPM rotational speed ensures steady sequential read/write operations.
• 64MB buffer reduces latency and accelerates data retrieval for enterprise workloads.
• High external transfer rate of 600MB/s allows rapid data movement across systems.

Enterprise-Grade Reliability

• Designed for 24/7 operation in demanding storage environments.
• Durable architecture supports consistent performance under continuous data loads.
• Conforms to rigorous Seagate quality standards for mission-critical applications.

Connectivity and System Integration

• Seamless integration into SAS storage networks for high-speed enterprise access.
• Supports multi-drive configurations, improving scalability and redundancy.
• Maintains backward compatibility with previous SAS generations for flexible deployment.

Compatible ProLiant Server Series

• BL Series:BL420c, BL460c, BL465c, BL660c (Gen8/Gen9) 
• DL Series: DL20, DL60, DL80, DL120, DL160, DL180, DL320e, DL360, DL380, DL560, DL580 
• ML Series: ML110, ML150, ML310e, ML350 variants 
• SL Series: SL230s, SL250s, SL270s 
• XL Series: XL170r, XL190r, XL220a, XL230a, XL250a

Details of Seagate ST9500620SS 7.2K RPM HDD

The Seagate ST9500620SS Constellation.2 500GB 7.2K RPM SAS-6Gbps SFF Serial SCSI Hard Disk Drive is designed to meet the demanding requirements of enterprise storage environments. Combining the reliability of SAS technology with the energy efficiency of a 7,200 RPM spindle speed, this 2.5-inch Small Form Factor (SFF) hard drive provides a perfect balance between performance, storage density, and operational cost. Its 6Gbps SAS interface delivers fast and consistent data transfer, while its 500GB capacity offers sufficient space for critical applications, database storage, and virtualization workloads. Engineered for mission-critical environments, the Constellation.2 series ensures data integrity, high reliability, and sustained performance for enterprise-level storage arrays.

Rotational Speed

The 7,200 RPM rotational speed of the ST9500620SS hard drive is optimized for enterprise workloads that require a balance between energy consumption and performance. Unlike higher-speed 10K or 15K drives, a 7.2K RPM spindle reduces power consumption and heat generation while maintaining adequate throughput for mid-tier server applications. This rotational speed is ideal for read-heavy workloads, file storage servers, backup systems, and cold or warm storage arrays where sustained sequential performance is more critical than extreme random IOPS performance. The drive’s design supports continuous 24/7 operation, making it suitable for enterprise data centers and high-density storage clusters.

SAS-6Gbps Interface

The Serial Attached SCSI (SAS) interface operating at 6Gbps ensures high-speed and reliable data transfer between the Seagate ST9500620SS drive and enterprise servers. SAS technology provides full-duplex communication, allowing simultaneous read and write operations, which is critical for multi-user or multi-application environments. Compared to traditional SATA drives, SAS offers better error detection and correction, more predictable latency, and higher reliability under intensive workloads. This interface is particularly useful in storage arrays, RAID configurations, and server clusters where consistent performance and data integrity are essential.

Small Form Factor Design

The 2.5-inch SFF design of the ST9500620SS allows IT administrators to deploy high-density storage in space-constrained server racks. By reducing the physical footprint of each drive, organizations can maximize the number of drives per chassis, increasing total storage capacity without compromising cooling or airflow. This design is particularly beneficial in enterprise data centers, blade servers, and storage appliances, where optimizing space utilization and thermal management is critical. The SFF form factor also enables easy integration into existing storage architectures, making the Constellation.2 series a versatile solution for both new deployments and storage upgrades.

500GB Storage Capacity

The 500GB capacity of the Seagate ST9500620SS provides ample space for enterprise applications, virtual machines, and database storage. It is suitable for both primary and secondary storage tiers, supporting applications such as business-critical file servers, backup solutions, and archival systems. The moderate capacity also allows for more efficient RAID configurations, enabling IT teams to balance storage redundancy and performance. Organizations can deploy multiple drives to achieve higher capacity while maintaining fault tolerance, providing a scalable and resilient storage solution.

Reliability and Durability

Seagate’s Constellation.2 series is engineered for enterprise reliability, with features that ensure consistent operation under demanding workloads. The ST9500620SS includes advanced error recovery and monitoring technologies, vibration tolerance, and shock resistance, making it resilient in multi-drive storage arrays. Predictive failure analysis and SMART monitoring provide early warnings for potential issues, allowing IT administrators to perform proactive maintenance and minimize downtime. The drive’s durability ensures that critical business data remains protected, supporting high-availability environments and mission-critical applications.

Hot-Swap Capability

The ST9500620SS supports hot-swap functionality, enabling drives to be replaced or upgraded without shutting down servers. This capability is essential for minimizing downtime and maintaining continuous operations in enterprise environments. IT administrators can replace faulty drives or expand storage arrays seamlessly, which is particularly valuable for high-availability storage clusters and RAID configurations. The ease of maintenance, combined with its SFF design, simplifies service tasks and reduces operational disruptions in data centers and server farms.

Applications in RAID and Storage Arrays

The Seagate ST9500620SS 500GB SAS drive is ideal for deployment in RAID configurations. It supports various RAID levels, including RAID 0, RAID 1, RAID 5, and RAID 10, allowing organizations to balance performance, redundancy, and data protection. When used in RAID arrays, multiple drives work in concert to provide higher aggregate throughput and fault tolerance, ensuring that enterprise workloads continue to operate smoothly even in the event of a single drive failure. This makes the Constellation.2 series a reliable choice for storage arrays, backup solutions, and enterprise servers where data integrity and uptime are critical.

Integration 

The ST9500620SS is compatible with major server brands and storage systems, including Dell, HP, and IBM, among others. Its firmware is optimized for enterprise server environments, ensuring smooth integration with RAID controllers and storage management software. Monitoring and diagnostic tools allow IT teams to track drive health, performance, and predictive failure indicators, enabling proactive maintenance and reduced downtime. This compatibility ensures that the Constellation.2 500GB drive can be seamlessly deployed in heterogeneous storage environments, providing flexibility for organizations managing diverse IT infrastructure.

Data Protection

Data integrity is a core focus of the ST9500620SS, featuring advanced error detection, correction mechanisms, and SMART monitoring to maintain high levels of data reliability. Predictive monitoring enables IT administrators to anticipate potential drive failures and perform preventive maintenance, reducing the risk of unexpected downtime. In combination with RAID configurations, these features provide robust data protection, making the drive suitable for environments that demand consistent uptime, high availability, and enterprise-grade security.