840459-001 HPE 1.2TB 10K RPM SAS 12GBPS Internal Hard Drive

HPE 1.2TB 10K RPM SAS 12GBPS Hard Drive

The HPE 840459-001 is a high-performance enterprise-class hot-swap hard disk drive engineered for HPE 3PAR systems. With 1.2TB of storage, SAS 12Gbps connectivity, and 10,000 RPM spindle speed, this 2.5-inch SFF drive ensures fast data access, reliability, and efficiency for mission-critical workloads.

General Information

Manufacturer Details

• Brand: Hewlett Packard Enterprise 
• Part Number: 840459-001
• Category: Hot-Swap Internal Hard Drive

Technical Specifications

• Capacity: 1.2 Terabytes
• Form Factor: 2.5-inch Small Form Factor
• Interface: SAS 12Gbps
• Bytes per Sector: 512
• Drive Technology: Air-filled
• Carrier Type: StoreServ 3PAR Carrier
• Plug Type: Hot Plug
• Workload: 3PAR optimized
• Features: Dual Port connectivity
• Bundled With: HPE StoreServ 3PAR Carrier

Performance Highlights

Speed & Efficiency

• Drive Rotation Speed: 10,000 RPM
• Transfer Rate (Max): 12Gb/sec
• Average Seek Time: 3.7 ms
• Maximum Seek Time: 7.3 ms
• Track-to-Track Seek Time: 0.1 ms

Expansion & Connectivity

Interface Options

• Compatible Bay: 2.5-inch SFF
• Connection Port: 1 x SAS 12Gb/s

Environmental Parameters

Operating Temperature Range

• Minimum: 50°F (10°C)
• Maximum: 95°F (35°C)

Compatibility Information

Designed For

HPE 3PAR StoreServ 8000 Series

Supported Models

• HPE 3PAR StoreServ 8000
• HPE 3PAR StoreServ 8400 (4-node Storage Base for Storage-Centric Rack)
• HPE 3PAR StoreServ 8440 (2-node Storage Base for Storage-Centric Rack)

HPE 840459-001 1.2TB 10K RPM SAS 12Gbps HDD Overview

The HPE 840459-001 1.2TB 10K RPM SAS 12Gbps Internal Hard Drive belongs to a specialized category of enterprise-grade storage devices designed for mission-critical computing environments. This category of hard drives is engineered to deliver a balance between high rotational speed, stable data throughput, and robust reliability features suitable for server infrastructures, data centers, virtualization platforms, and enterprise storage arrays. Unlike consumer-grade hard drives, enterprise SAS (Serial Attached SCSI) drives are built with enhanced error correction, vibration tolerance, and workload endurance, making them a preferred choice in environments requiring continuous uptime and predictable performance behavior.

Role of 10K RPM SAS Drives in Modern Infrastructure

Within enterprise storage architecture, 10,000 RPM SAS drives occupy a middle-performance tier between high-capacity nearline storage drives and ultra-fast SSD-based storage systems. The HPE 840459-001 1.2TB model is specifically positioned to handle mixed workloads that demand both capacity and speed. These drives are commonly deployed in transactional databases, enterprise application servers, email systems, and virtual machine storage pools. The rotational speed of 10K RPM ensures reduced latency compared to 7.2K RPM drives while maintaining cost efficiency relative to solid-state storage solutions.

SAS 12Gbps Interface Technology and Data Transfer Efficiency

Understanding SAS 12Gbps Architecture

The SAS 12Gbps interface is a key defining characteristic of the HPE 840459-001 drive category. SAS technology enhances traditional SCSI communication by providing dual-port connectivity, improved command queuing, and full-duplex data transfer capabilities. The 12Gbps bandwidth allows significantly faster communication between storage devices and server controllers, enabling higher throughput in demanding enterprise workloads. This makes the drive suitable for environments where multiple users or applications simultaneously access stored data.

Advantages of Dual-Port Connectivity

One of the most important features in SAS-based storage systems is dual-port functionality. This capability allows the drive to connect to two independent controllers simultaneously, ensuring continuous data access even in the event of a controller failure. In high-availability environments, this redundancy is essential for maintaining uninterrupted service delivery. The HPE 840459-001 leverages this feature to enhance fault tolerance and system resilience in clustered server configurations.

Characteristics of 10K RPM Enterprise Drives

Rotational Speed and Access Time Optimization

The 10,000 RPM spindle speed of the HPE 840459-001 significantly reduces mechanical latency compared to slower spinning drives. This improvement directly affects seek time and rotational delay, allowing faster data retrieval and improved system responsiveness. In enterprise workloads involving frequent read and write operations, such performance enhancements contribute to smoother application behavior and reduced bottlenecks in storage processing pipelines.

Balanced Throughput for Mixed Workloads

This category of hard drive is designed to handle mixed workloads that combine sequential and random I/O operations. The 1.2TB capacity ensures sufficient space for active datasets while maintaining high-speed accessibility. The 12Gbps SAS interface complements the mechanical performance of the drive, ensuring that data transfer rates remain stable even under heavy usage conditions. This balance makes the drive ideal for applications requiring consistent performance rather than peak burst speeds.

Storage Capacity Utilization and Enterprise Scalability

1.2TB Capacity in Data Center Environments

The 1.2TB storage capacity of the HPE 840459-001 is optimized for enterprise environments where multiple drives are deployed in arrays rather than relying on single large-capacity disks. This approach allows for better redundancy, improved load balancing, and more efficient data distribution. In RAID configurations, multiple 1.2TB drives can be combined to create scalable storage pools that enhance both performance and fault tolerance.

Scalability in Modular Server Infrastructure

Modern data centers rely heavily on modular scalability, where storage resources can be expanded incrementally. The HPE SAS 10K RPM drive category supports this requirement by enabling seamless integration into existing HPE ProLiant server architectures. As data requirements grow, additional drives can be added to storage arrays without disrupting ongoing operations, ensuring continuous scalability and operational efficiency.

Compatibility with HPE ProLiant and Enterprise Servers

Integration into HPE Server Ecosystems

The HPE 840459-001 is designed for compatibility with a wide range of HPE ProLiant servers and enterprise storage enclosures. This compatibility ensures optimized firmware alignment, system recognition, and performance tuning within HPE-managed environments. The drive integrates seamlessly with HPE Smart Array controllers, enabling advanced RAID configurations and intelligent storage management features.

Firmware Optimization and System-Level Performance

Enterprise drives in this category benefit from firmware-level optimization tailored for HPE infrastructure. These optimizations improve command processing efficiency, reduce latency in high-load environments, and enhance error recovery mechanisms. As a result, system administrators can achieve consistent performance across large-scale deployments without requiring extensive manual configuration.

Enterprise Workload Optimization Scenarios

Database Transaction Processing

The HPE 840459-001 1.2TB SAS drive is well-suited for database environments that require consistent read and write performance. Transaction-heavy systems benefit from the low latency and reliable throughput provided by 10K RPM mechanics combined with SAS 12Gbps connectivity. This ensures stable query processing and reduced response times in structured data environments.

Virtualization and Multi-Tenant Systems

In virtualized infrastructures, multiple virtual machines share underlying storage resources. The performance characteristics of this drive category make it ideal for supporting virtual machine disk images, system snapshots, and shared storage pools. The ability to handle concurrent access requests ensures smooth operation across multiple virtual workloads.

Enterprise Application Hosting

Enterprise applications such as ERP systems, CRM platforms, and business intelligence tools require reliable storage backends. The HPE SAS drive category provides the stability and speed necessary to support these applications, ensuring uninterrupted access to critical business data.

RAID Configurations and Storage Array Deployment

Data Redundancy and Fault Tolerance

RAID configurations are commonly used with enterprise SAS drives to enhance data protection and performance. The HPE 840459-001 integrates effectively into RAID 1, RAID 5, RAID 6, and RAID 10 setups, providing redundancy and improving system resilience. These configurations help protect against data loss while maintaining acceptable performance levels in case of drive failure.

Performance Scaling in RAID Arrays

As multiple drives are combined in RAID arrays, overall system performance scales depending on configuration type. The 12Gbps SAS interface ensures that data transfer bottlenecks are minimized, allowing storage arrays to deliver high aggregate throughput suitable for demanding enterprise workloads.

Comparison with Solid State Storage Technologies

Cost per Gigabyte Advantage

While SSDs offer superior speed, SAS hard drives such as the HPE 840459-001 provide a more economical cost per gigabyte ratio. This makes them an attractive option for bulk storage needs where extreme speed is not the primary requirement.

Workload Suitability Differences

SAS HDDs are generally preferred for sequential workloads and balanced mixed I/O environments, whereas SSDs dominate high-frequency transactional systems. The 10K RPM category bridges this gap by offering improved performance over traditional HDDs while maintaining affordability for large-scale deployments.