693687-B21 HPE 4TB 7.2K RPM SATA 6GBPS SC Midline HDD

HPE 693687-B21 4TB 7.2K RPM SATA Hard Drive Overview

The HPE 693687-B21 is a high-capacity, enterprise-grade 3.5-inch hard disk drive engineered for reliable data storage in demanding server environments. Designed as a hot-swap Midline HDD, it delivers balanced performance, efficiency, and cost-effectiveness for bulk storage workloads in HPE ProLiant infrastructures.

General Information

• Manufacturer: HPE
• Part Number: 693687-B21
• Drive Type: Hot-swappable enterprise HDD
• Workload Class: Midline storage optimization
• Carrier Type: HPE SmartDrive Carrier included

Primary Product Features and Key Advantages

• Large-scale storage for enterprise data centers
• Efficient for backup and archival workloads
• Designed for continuous 24/7 operation

Optimized SATA 6Gbps Interface Performance

• Interface speed: 6Gbps SATA connectivity
• External transfer rate up to 600 MB/s
• Reliable integration with enterprise server systems

Enhanced Reliability with SmartDrive Technology

• Smart Carrier for easy installation and replacement
• NCQ support for improved command handling
• Reduced downtime during maintenance cycles

Technical Specifications of HPE 693687-B21 HDD

• Form Factor: 3.5 inch LFF
• Width: 4.20 inch
• Depth: 6.70 inch
• Height: 1.10 inch

Performance and Speed Metrics

• Spindle Speed: 7200 RPM
• Average Seek Time: 8.5 ms
• Maximum Seek Time: 16.2 ms
• Track-to-Track Seek Time: 0.8 ms

Efficient Data Transfer Capabilities

• External transfer rate: 600 MBps
• Optimized for sequential and random workloads
• Stable performance under continuous operation

Interface Highlights

• 1 x SATA 6Gb/s port
• Backward compatibility with SATA infrastructure
• Seamless integration in hot-swap bays

Compatible Drive Bay Support

• Compatible bay size: 3.5 inch LFF
• Hot-swap ready installation
• Supports SmartDrive carrier architecture

Temperature Tolerance Range

• Minimum Operating Temperature: 50°F
• Maximum Operating Temperature: 95°F
• Designed for enterprise-grade cooling systems

Compatibility with HPE ProLiant Server

HPE ProLiant DL Series Compatibility

• DL180 Gen9 series (all variants)
• DL20 Gen9 series configurations
• DL360 Gen9 CMS systems
• DL380 Gen9 base, entry, and performance models
• DL385p Gen8 series configurations
• DL80 Gen9 storage and entry models

HPE ProLiant ML Series Support

• ML110 Gen9 server platforms
• ML30 Gen9 base and performance editions
• ML310e Gen8 and Gen8 v2 systems
• ML350 Gen9 enterprise servers
• ML350p Gen8 specialized workloads

HPE ProLiant SL Series Integration

• SL4540 Gen8 single-node server trays
• SL4540 Gen8 multi-node configurations

Smart Carrier Integration Benefits

• Tool-less installation and removal
• Improved airflow management inside server chassis
• Enhanced drive identification and status monitoring

HPE 693687-B21 4TB 7.2K RPM HDD SATA 6Gbps Overview

The HPE 693687-B21 4TB 7.2K RPM HDD SATA 6Gbps SC Midline hard drive is a high-capacity enterprise-class storage solution designed for scalable data center environments, cloud infrastructures, archival systems, and business-critical storage arrays. Built to deliver a balance of cost efficiency, reliability, and storage density, this midline SATA hard drive is engineered for organizations that require large-volume storage without the premium cost of high-performance SAS or SSD solutions.

As part of HPE’s trusted midline storage portfolio, this drive is optimized for sequential workloads, backup operations, cold and warm data storage tiers, and applications where capacity per dollar is more critical than ultra-low latency performance. Its 4TB storage capacity combined with a 7,200 RPM rotational speed and 6Gbps SATA interface makes it a dependable option for enterprise servers and storage enclosures that prioritize stability and long-term endurance.

Enterprise-Class Design and HPE Engineering Standards

The HPE 693687-B21 drive is designed under strict enterprise-grade manufacturing standards to ensure compatibility, durability, and long lifecycle performance within HPE server ecosystems. It is rigorously tested for integration with HPE ProLiant servers and storage arrays, ensuring seamless interoperability and minimized downtime in production environments.

HPE midline drives are built for workloads that demand consistent throughput over extended periods. This includes large-scale file storage, log management systems, virtualization backups, and data replication tasks. The engineering design emphasizes vibration tolerance, thermal stability, and error recovery control to maintain performance consistency in multi-drive server configurations.

Midline Optimization for Cost-Effective Storage Scaling

The midline classification of the HPE 693687-B21 highlights its role in providing cost-effective storage scaling for enterprises. Instead of focusing on ultra-high-speed performance, it prioritizes storage density and affordability per terabyte. This makes it ideal for organizations expanding their storage infrastructure while maintaining predictable budget control.

4TB Storage Capacity and Workload Efficiency

With a total storage capacity of 4TB, this hard drive is suitable for handling large datasets across various enterprise applications. It enables organizations to store extensive volumes of structured and unstructured data, including backups, virtual machine images, surveillance archives, and business analytics data repositories.

The 4TB capacity is particularly valuable in environments where data accumulation is continuous and long-term retention is required. Enterprises benefit from reduced physical storage footprint while still achieving significant data consolidation within a single drive unit.

Optimized Data Distribution in RAID Configurations

This HDD is frequently deployed in RAID-based storage systems, where multiple drives work together to enhance redundancy, performance, or both. Its stable rotational speed and consistent throughput make it suitable for RAID 1, RAID 5, RAID 6, and RAID 10 configurations in enterprise servers.

In RAID environments, the 4TB capacity allows administrators to build scalable storage pools without excessive hardware overhead. This contributes to simplified storage management and improved data resilience across enterprise workloads.

Efficient Archival Storage Layer

The HPE 693687-B21 is especially effective as part of a tiered storage architecture. In such environments, it functions as a secondary or tertiary storage layer where less frequently accessed data is stored efficiently. Its large capacity ensures that backup cycles can retain extended historical snapshots without requiring frequent drive replacement or expansion.

Performance Characteristics and Throughput Stability

Operating at 7,200 RPM, this hard drive delivers a balanced performance profile suitable for enterprise workloads that do not require SSD-level latency but still demand stable and predictable read/write speeds. The rotational speed ensures that sequential data access remains efficient, which is essential for backup operations and large file transfers.

The drive is optimized to handle sustained workloads over long durations, making it suitable for environments where continuous data writing is more common than random high-frequency access patterns.

Ideal for Sequential Data Processing Environments

Sequential data workloads such as video storage systems, backup repositories, and data logging systems benefit significantly from this drive’s architecture. The consistent rotational speed ensures smooth data streaming and minimizes bottlenecks in sequential read/write operations.

SATA 6Gbps Interface and Connectivity Advantages

The SATA 6Gbps interface used in the HPE 693687-B21 provides a widely compatible and cost-efficient connection standard for enterprise storage systems. It ensures reliable data transfer rates while maintaining broad compatibility across server platforms and storage controllers.

This interface is particularly useful in environments where scalability and ease of integration are more important than ultra-high-speed interconnects. SATA-based storage arrays allow organizations to expand storage capacity economically without requiring specialized infrastructure upgrades.

System Integration and Compatibility Benefits

One of the key advantages of this SATA drive is its compatibility with a wide range of HPE ProLiant servers and storage enclosures. This ensures that businesses can integrate the drive into existing infrastructure with minimal configuration changes.

Efficient Bandwidth Utilization in Enterprise Storage Networks

The 6Gbps bandwidth ensures that the drive can handle simultaneous read and write operations effectively in multi-drive configurations. This makes it suitable for distributed storage systems where multiple users or applications access stored data concurrently.

Smart Carrier (SC) Midline Form Factor Design

The Smart Carrier (SC) design included in the HPE 693687-B21 enhances hot-swap capability and simplifies drive maintenance in enterprise environments. This form factor is specifically engineered for HPE server systems to ensure secure installation and efficient handling.

The SC design allows IT administrators to quickly replace or upgrade drives without disrupting system operations. This is critical in data center environments where uptime and service continuity are top priorities.

Hot-Swap Capability and Maintenance Efficiency

Hot-swap functionality ensures that the drive can be replaced while the server is still running. This reduces downtime and improves operational efficiency in mission-critical environments where system availability must be maintained at all times.

Streamlined Data Center Operations

By enabling quick replacement cycles and simplified maintenance workflows, the Smart Carrier design reduces the complexity of storage management. This is especially valuable in large-scale deployments involving hundreds or thousands of drives.