HPE 846528-B21 3TB 7.2K RPM SAS 12GBPS Hard Drive

HPE 846528-B21 3TB SAS Hard Drive Overview

The HPE 846528-B21 is a high-performance enterprise-grade storage solution designed for reliability, scalability, and consistent server workloads. This 3TB 7200RPM 3.5-inch Large Form Factor (LFF) SAS hard drive delivers dependable midline storage performance for HPE ProLiant servers and compatible storage systems.

General Information

Manufacturer & Identification

• Brand: HPE (Hewlett Packard Enterprise)
• Part Number: 846528-B21
• Product Type: Enterprise Hard Disk Drive

Technical Specifications

Storage Capacity & Drive Design

• Storage Size: 3 Terabytes (TB)
• Drive Type: Midline SAS HDD
• Drive Technology: Air-filled mechanical drive
• Carrier Type: HPE Smart Carrier included

Performance Features

• Spindle Speed: 7200 RPM for balanced performance
• External Transfer Rate: Up to 1.2 GB/sec
• Workload Type: Midline optimized for read/write balance
• Firmware: Digitally signed for data integrity and protection

Connectivity & Interface

Data Transfer and Interface Details

• Interface: SAS 12Gb/s high-speed connection
• Form Factor: 3.5-inch Large Form Factor (LFF)
• Hot Plug Support: Yes, supports live replacement

Physical Dimensions

Size & Build Specifications

• Width: 4.20 inches
• Depth: 6.70 inches
• Height: 1.10 inches

Compatibility Information

Supported HPE ProLiant Servers

BL Series Compatibility

• BL420c Gen8 / Gen9
• BL460c Gen8 / Gen9
• BL465c Gen8 / Gen9

DL Series Compatibility

• DL20 Gen9, DL60 Gen9, DL80 Gen9
• DL120, DL160, DL180 (Gen8 / Gen9)
• DL360e, DL360p, DL380e, DL380p (Gen8 / Gen9)
• DL388 Gen9

ML Series Compatibility

• ML110 Gen8 / Gen9
• ML150 Gen8 / Gen9
• ML310e Gen8 / Gen9
• ML350 / ML350e Gen8 / Gen9

SL Series Compatibility

• SL200t Gen8 / Gen9
• SL230s, SL250s Gen8 / Gen9
• SL2500, SL4550, SL4545, SL454x

Storage & Enterprise Systems

• HPE D3600 Disk Enclosure
• HPE D3700 Storage Array
• HPE StoreEasy 1430 / 1440 / 1530 / 1540
• HPE StoreEasy 1630 / 1640

Advantages of HPE 3TB SAS Midline HDD

• Enterprise-grade reliability for data centers
• Efficient storage for backup and archiving workloads
• Secure firmware protection against unauthorized modifications
• High compatibility with multiple HPE server generations
• Hot-swap capability reduces downtime during maintenance

Ideal Use Cases

• Data center storage expansion
• Enterprise backup solutions
• Cloud infrastructure storage layers
• File and media storage servers

HPE 846528-B21 3TB 7200RPM 3.5 Inch LFF SAS 12Gbps HDD

The HPE 846528-B21 3TB 7200RPM 3.5 inch Large Form Factor SAS 12Gbps Midline Hard Drive is an enterprise-grade storage solution designed for demanding data center environments where reliability, scalability, and consistent performance are essential. Built specifically for HPE ProLiant server platforms, including Gen8, Gen9, and Gen10 architectures, this drive delivers a balanced combination of capacity, efficiency, and durability for workloads that require large-scale data storage without compromising system stability. Its digitally signed firmware ensures authenticity and security, protecting enterprise systems from unauthorized firmware manipulation while maintaining compatibility within HPE’s validated hardware ecosystem.

As part of HPE’s Midline (MDL) hard drive category, the HPE 846528-B21 is engineered for bulk storage, archival data retention, and high-capacity applications that do not require the extreme performance of enterprise performance drives but still demand consistent and dependable throughput. With 3TB of storage capacity, this drive enables organizations to scale their storage infrastructure efficiently while maintaining manageable cost per gigabyte, making it an ideal choice for cloud storage infrastructures, backup repositories, and large-scale data repositories.

Enterprise-Class SAS 12Gbps Interface Architecture

High-Speed SAS Connectivity for Data Centers

The Serial Attached SCSI (SAS) 12Gbps interface embedded in the HPE 846528-B21 hard drive provides a high-performance communication channel between the storage device and server system. SAS technology is widely recognized in enterprise environments for its superior reliability, full-duplex communication capability, and enhanced command queuing compared to traditional SATA interfaces. With 12 gigabits per second bandwidth, this drive ensures efficient data transfer rates, reduced bottlenecks, and improved responsiveness in multi-user environments.

Optimized Data Throughput for Enterprise Workloads

The SAS architecture is specifically designed for enterprise workloads that require sustained read and write operations over long periods. This makes the HPE 846528-B21 particularly suitable for applications such as virtualization storage pools, database backups, and distributed file systems. Its ability to maintain consistent throughput under heavy workloads ensures predictable system behavior, which is critical for mission-critical infrastructure.

3TB Midline Storage Capacity for Scalable Infrastructure

Balanced Capacity for Cost-Efficient Storage Expansion

The 3TB storage capacity offered by this hard drive provides a practical balance between storage density and cost efficiency. Midline drives like the HPE 846528-B21 are designed for environments where large volumes of data need to be stored reliably without the necessity of ultra-high-speed access. This makes it an excellent fit for tiered storage architectures where frequently accessed data is stored on SSDs or performance drives, while less frequently accessed data is stored on midline SAS drives.

Ideal for Growing Data Center Demands

Modern data centers face exponential data growth, and scalable storage solutions are essential for maintaining operational efficiency. The 3TB capacity per drive allows administrators to expand storage arrays incrementally without significant infrastructure overhauls. This modular approach to storage expansion enables flexible capacity planning while optimizing rack space utilization in ProLiant server environments.

7200RPM Performance and Rotational Efficiency

Stable Mechanical Performance for Continuous Operation

Operating at 7200 revolutions per minute, the HPE 846528-B21 delivers a stable and predictable performance profile suitable for midline enterprise workloads. While not positioned as a high-performance spindle speed compared to 10K or 15K drives, the 7200RPM configuration prioritizes reliability, endurance, and cost efficiency, making it suitable for long-term data storage and backup systems.

Optimized for Sustained Workloads

The rotational speed of this drive ensures balanced performance for sequential read and write operations, which are common in backup systems, media storage repositories, and large-scale data archival systems. This balance between performance and endurance makes it a preferred choice for organizations that prioritize storage capacity and reliability over ultra-low latency.

3.5 Inch Large Form Factor Design Advantages

Enhanced Storage Density per Drive

The 3.5 inch Large Form Factor (LFF) design of the HPE 846528-B21 enables higher storage capacity compared to smaller form factor drives. LFF drives are widely used in enterprise environments due to their ability to accommodate larger platters, resulting in increased storage density and improved cost per terabyte metrics. This makes them highly efficient for bulk storage deployments.

Physical Compatibility with HPE Server Bays

The drive is specifically designed to integrate seamlessly into HPE ProLiant server drive bays, ensuring consistent mechanical fit and thermal alignment. The LFF architecture also supports efficient airflow management within server chassis, contributing to improved cooling and system stability under continuous operation.

Compatibility with HPE ProLiant Gen8 Gen9 and Gen10 Servers

Broad Server Platform Support

One of the key advantages of the HPE 846528-B21 hard drive is its broad compatibility across multiple generations of HPE ProLiant servers, including Gen8, Gen9, and Gen10 platforms. This cross-generation compatibility allows IT administrators to standardize storage components across different server infrastructures, reducing inventory complexity and simplifying maintenance procedures.

Seamless Integration with Enterprise Infrastructure

The drive is designed to integrate seamlessly with HPE Smart Array controllers and backplane systems, ensuring smooth communication between hardware components. This compatibility reduces configuration challenges and ensures that system administrators can deploy storage solutions with minimal setup complexity.

Smart Carrier Technology for Operational Efficiency

Equipped with HPE Smart Carrier design, the drive includes visual indicators and mechanical enhancements that simplify installation, replacement, and monitoring. The Smart Carrier system enhances operational visibility and ensures proper alignment within hot-swappable server bays, contributing to reduced downtime and improved maintenance efficiency.

Digitally Signed Firmware for Enhanced Security

Protection Against Unauthorized Firmware Changes

The digitally signed firmware embedded in the HPE 846528-B21 hard drive ensures that only authentic and verified firmware can operate on the device. This security feature is critical in enterprise environments where data integrity and system reliability are paramount. By preventing unauthorized firmware modifications, the drive protects against malicious attacks and system corruption.

Enterprise-Grade Data Integrity Assurance

Digitally signed firmware also ensures that the storage device maintains consistent behavior across all deployments. This reduces the risk of firmware inconsistencies and enhances predictability in large-scale server environments, where uniformity is essential for system stability and performance management.

Reliability and Midline Workload Optimization

Designed for Non-Mission Critical Enterprise Storage

The HPE 846528-B21 belongs to the midline category, which is specifically optimized for workloads that require dependable storage rather than ultra-high-speed performance. These workloads typically include backup storage, archival data retention, and large-scale file repositories. The drive is engineered to provide long operational lifespans under consistent usage conditions.

Endurance for Continuous Enterprise Operation

Enterprise environments demand storage solutions that can operate continuously without degradation in performance or reliability. The mechanical and firmware design of this drive ensures that it can handle sustained workloads over extended periods, making it suitable for 24/7 data center operations.

Performance Characteristics in Enterprise Environments

Balanced Latency and Throughput

The performance profile of the HPE 846528-B21 is optimized for balanced latency and throughput, ensuring consistent performance across mixed workloads. While not designed for high-frequency transactional databases, it excels in sequential data processing tasks and large-scale storage operations.

SAS Advantage Over Traditional Storage Interfaces

Compared to SATA-based storage devices, SAS drives like the HPE 846528-B21 offer improved error handling, enhanced command queuing, and better scalability in multi-drive environments. These advantages make SAS drives more suitable for enterprise deployments where reliability and performance consistency are critical.

Storage Scalability in Modern Data Centers

Efficient Expansion for Enterprise Storage Arrays

The modular nature of the HPE 846528-B21 allows organizations to scale storage infrastructure incrementally. This scalability is essential for cloud service providers, enterprise IT departments, and managed service providers who require flexible storage expansion without significant infrastructure redesign.

Support for RAID Configurations

This hard drive is compatible with various RAID configurations commonly used in enterprise environments. RAID setups enhance data redundancy, performance, and fault tolerance, ensuring that storage systems remain resilient even in the event of hardware failures. The consistent performance characteristics of the drive make it suitable for integration into RAID 1, RAID 5, RAID 6, and RAID 10 arrays depending on system requirements.

Enterprise Use Cases and Deployment Scenarios

Cloud Storage Infrastructure

In cloud environments, the HPE 846528-B21 serves as a reliable storage component for backend data repositories. Its capacity and durability make it suitable for storing user data, application backups, and virtual machine images in distributed cloud architectures.

Virtualization Environments

Virtualized server environments benefit from the drive’s ability to handle multiple simultaneous read and write operations. It supports virtual machine storage pools where capacity and reliability are prioritized over extreme performance.

Backup and Archival Systems

The drive is widely used in backup infrastructures where large volumes of data must be stored securely for long-term retention. Its stability and capacity make it an ideal choice for disaster recovery systems and archival storage solutions.

Energy Efficiency and Thermal Optimization

Energy efficiency is a critical consideration in enterprise storage design. The HPE 846528-B21 is engineered to operate within optimized power consumption ranges while maintaining consistent performance. Its thermal design ensures effective heat dissipation within dense server environments, contributing to improved system longevity and reduced cooling costs.

Data Protection and Enterprise Reliability Features

The drive incorporates multiple layers of data protection, including error correction mechanisms, firmware validation, and SAS protocol-level integrity checks. These features work together to ensure that data remains consistent, accurate, and secure throughout its lifecycle within enterprise storage systems.