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Midline SAS drive delivered stable throughput.
864256-B21
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HP SPS-DRV HDD 2TB 12G 7.2K LFF SAS MDL
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864256-B21
- Description:
- HP SPS-DRV HDD 2TB 12G 7.2K LFF SAS MDL
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864256-B21 Overview
864256-B21 is a high-performance HDD designed with a 3.5-inch form factor, SATA III interface, and a 7200 RPM spindle speed. It delivers a robust 4 TB storage capacity with a 128 MB cache, a 550 TB/yr annual workload rating, an industry-leading MTBF, and reliability rated for high-duty cycles. Advanced features include a helium-sealed design, integrated vibration protection, and dual actuators to ensure optimal performance under rigorous conditions.
864256-B21 is engineered for demanding enterprise storage, server, NAS, desktop, and surveillance applications. It offers efficient power consumption with approximately 7.5 Watts during read/write operations and around 4.5 Watts in idle mode. This HDD is ideally suited for data centers and high-availability environments where continuous performance and robust reliability are essential.
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864256-B21 Specifications
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Desktop / Server / NAS / Surveillance / Enterprise Storage
- Interface
- SATA III
- Form Factor
- 3.5-inch
- Storage Capacity
- 4 TB
- Spindle Speed (RPM)
- 7200 RPM
- Cache (Buffer Size)
- 128 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 250 MB/s
- Annual Workload Rating
- 550 TB/yr
- Power Consumption (Read/Write)
- 7.5 Watts
- Power Consumption (Idle)
- 4.5 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 0–60°C
- Product Name
- 864256-B21 Enterprise Helium Sealed HDD
- Height
- 1.03 inches
- Width
- 5.79 inches
- Depth
- 8.74 inches
- Weight
- 2.2 lbs
864256-B21 Use Case
High-Performance Transactional Databases in Enterprise Data Centers
In a large-scale financial services data center, IT architects integrate the 864256-B21-HP SPS-DRV HDD 2TB 12G 7.2K LFF SAS MDL into a storage array hosting mission-critical OLTP databases. By leveraging its 12 Gb/s SAS interface and 7,200 RPM spindle speed, database queries achieve consistent sub-millisecond latency under peak concurrency. Benefit: Delivers sustained IOPS growth and predictable transaction throughput, reducing query bottlenecks and ensuring SLA compliance for high-value applications.
Virtual Desktop Infrastructure (VDI) Acceleration
A global enterprise deploying hundreds of virtual desktops installs the 864256-B21-HP SPS-DRV HDD 2TB 12G 7.2K LFF SAS MDL in its hyperconverged cluster to handle intensive read/write spikes during boot storms and login storms. Its large 2 TB capacity and enterprise-grade reliability support high-density VM provisioning. Benefit: Cuts average desktop boot times by up to 40%, enhances user experience, and lowers total cost of ownership through optimized storage consolidation.
On-Premise Backup and Archive Storage
An SMB IT team builds an on-premise backup repository for compliance-driven data retention using a JBOD chassis populated with multiple 864256-B21-HP SPS-DRV HDD 2TB 12G 7.2K LFF SAS MDL drives. The drives’ LFF form factor and low power draw simplify rack integration and reduce cooling requirements. Benefit: Provides cost-effective, high-capacity storage with enterprise reliability, achieving 99.9% data availability and rapid restore times for regulatory audits.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 864256-B21 |  881779-B21 |  818367-B21 |  P07928-B21 |  846510-B21 | |
|---|---|---|---|---|---|
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SAS 12Gb/s | SATA III | SATA III | SAS 12Gb/s |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 TB | 8 TB | 4 TB | 8 TB | 8 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 128 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 180 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 7.5 Watts | 8 Watts | 7.5 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 4.5 Watts | 6 Watts | 4 Watts | 5 Watts | 5 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Advanced Features | Dual Actuator | Rotational Vibration Sensors | Dual Actuator | Dual Actuator | Dual Actuator |
| Operating Temperature | 0–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 864256-B21 Enterprise Helium Sealed HDD | 881779-B21 Enterprise Series SAS Hard Drive | 818367-B21 4TB Helium Sealed Desktop HDD | P07928-B21 Enterprise HDD | 846510-B21 |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 5.79 inches | 5.79 inches | 5.79 inches | 5.79 inches |
| Depth | 8.74 inches | 4.00 inches | 4.01 inches | 4.00 inches | 4.01 inches |
| Weight | 2.2 lbs | 2.0 lbs | 1.6 lbs | 1.2 lbs | 1.8 lbs |
Reviews & Ratings
N
Noman Ashraf
5
Works well in mixed workload environments.
V
Victor Petrov
5
OEM disk ensured compatibility.
S
Salman Qureshi
4
Reliable everyday enterprise HDD.
T
Timo Laine
4
Good balance of capacity and reliability.
Questions & Answers
What are the key specifications of the HP SPS-DRV HDD 2TB 12G 7.2K LFF SAS MDL (864256-B21)?
The HP SPS-DRV HDD 864256-B21 offers 2 TB capacity, 12 Gb/s SAS interface, 7,200 RPM spindle speed, 3.5″ large form factor and hot-plug support.
What capacity does the HP 864256-B21 drive provide?
This HP drive delivers 2 terabytes of storage capacity, ideal for mid-tier and enterprise workloads.
Which interface does the HP SPS-DRV HDD 864256-B21 use?
The drive uses a dual-port 12 Gb/s SAS interface for high-throughput, low-latency server applications.
What spindle speed does the 2 TB HP SAS drive support?
The HDD spins at 7,200 RPM to balance performance and reliability in data-center environments.