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858594-B21
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- HP 1TB 3.5 LFF SATA 6GB/S 7.2K RPM_X000D_ 512N MDL HOT-PLUG HDD_X0
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858594-B21
HP 1TB 3.5 LFF SATA 6GB/S 7.2K RPM_X000D_ 512N MDL...
$201.32
$175.14
35 in Global Warehouse
$175.14
13% off
TRUSTED, TRIED, PROVEN
858594-B21 Overview
858594-B21 is an HDD engineered as a 3.5-inch drive featuring a SATA III interface, designed to deliver robust enterprise storage performance. It offers a 8 TB capacity with a 7200 RPM spindle speed and a generous 256 MB cache while maintaining a high annual workload rating of 550 TB/yr and an MTBF of 2,000,000 hours, ensuring reliable operation rated for continuous use.
This enterprise HDD is ideally suited for use in data centers, desktops, NAS, and surveillance environments, with low power consumption of approximately 8.5 Watts during active read/write operations and 5.5 Watts during idle. Advanced features include a helium-sealed design, vibration protection, and dual actuator technology that further boost performance and reliability in multi-drive, multi-bay systems.
What is the price of 858594-B21?
Lowest price of 858594-B21 is $ 175.14. Shop now! Get further exclusive discounts with bulk quotation on 858594-B21
Explore more options from Hard Drives & Ssds or explore other Hpe products.
858594-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 | 8 TB |
| Spindle Speed (RPM) | 7200 RPM |
| Cache (Buffer Size) | 256 MB |
| Average Latency | N/A |
| Data Transfer Rate | Up to 210 MB/s |
| Annual Workload Rating | 550 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts |
| Power Consumption (Idle) | 5.5 Watts |
| Encryption Support | AES 256-bit |
| Helium Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay |
| Vibration Protection | Yes |
| Advanced Features | Dual Actuator |
| Operating Temperature | 5–55°C |
| Product Name | 858594-B21 Enterprise HDD |
| Height | 1.030 inches |
| Width | 4.010 inches |
| Depth | 5.789 inches |
| Weight | 2.20 lbs |
858594-B21 Use Case
High-Density Virtualization Storage Expansion
In enterprise virtualization clusters running VMware vSphere or Microsoft Hyper-V, the 858594-B21-HP 1TB 3.5″ LFF SATA 6Gb/s 7.2K RPM hot-plug HDD delivers scalable block storage for VM sprawl. Hot-swap capability minimizes downtime during live host maintenance, while 512e sector format ensures maximum compatibility. Outcome: Seamless capacity scaling with zero service interruption and predictable I/O performance under heavy VM consolidation.
Business-Critical Backup and Archive in SAN Environments
For SMB and mid-market SAN deployments leveraging HPE StoreVirtual or StoreOnce, this 1TB SATA drive provides high-capacity, cost-optimized secondary storage for daily backups and long-term data retention. Enterprise-grade reliability and hot-plug design reduce RMA events and streamline drive replacement. Outcome: Improved backup window consistency, reduced storage TCO, and rapid restore times for compliance and audit requirements.
Edge-Level Video Surveillance Recording
In distributed surveillance nodes requiring 24×7 continuous recording, the 858594-B21-HP 1TB SATA HDD offers sustained write throughput for HD camera streams. Hot-swappable bays allow field technicians to replace drives without system reboot, preserving recording continuity. Outcome: Reliable, high-capacity storage for critical video evidence, simplified maintenance workflows, and guaranteed retention policies.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Advanced Features | Dual Actuator | Dual Actuator | Rotational Vibration Sensors | Dual Actuator | Dual Actuator |
| Annual Workload Rating | 180 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Cache (Buffer Size) | 128 MB | 256 MB | 256 MB | 256 MB | 64 MB |
| Data Transfer Rate | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 210 MB/s |
| Depth | 8.37 inches | 5.789 inches | 5.78 inches | 7.78 inches | 4.0 inches |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Encryption Support | No | AES 256-bit | AES 256-bit | No | No |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Height | 1.03 inches | 1.030 inches | 1.03 inches | 1.03 inches | 1.0 inches |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III |
| Operating Temperature | 5–60°C | 5–55°C | 5–60°C | 5–60°C | 5–55°C |
| Power Consumption (Idle) | 5 Watts | 5.5 Watts | 6.5 Watts | 6 Watts | 6.1 Watts |
| Power Consumption (Read/Write) | 8 Watts | 8.5 Watts | 8.5 Watts | 8 Watts | 8.7 Watts |
| Product Name | P04529-B21 | 858594-B21 Enterprise HDD | HGST Ultrastar 10TB Enterprise HDD | 801884-B21 Enterprise HDD | 804642-B21 Enterprise SATA HDD |
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Storage Capacity | 4 TB | 8 TB | 10 TB | 8 TB | 4 TB |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Weight | 1.8 lbs | 2.20 lbs | 1.90 lbs | 2.2 lbs | 2.0 lbs |
| Width | 5.78 inches | 4.010 inches | 4.00 inches | 5.79 inches | 5.8 inches |
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Questions & Answers
Q
What is the storage capacity of HP 858594-B21?
A
The HP 858594-B21 hot-plug hard drive offers 1 TB of native storage capacity.
Q
Which interface does the HP 1 TB SATA HDD use?
A
This drive uses a standard SATA 6 Gb/s interface for data transfer.
Q
What is the form factor of this hard drive?
A
The HP 858594-B21 is a 3.5-inch large form factor (LFF) hard drive.
Q
What rotation speed does the drive support?
A
The hard drive spins at 7,200 RPM for balanced performance and reliability.
Q
Is the HP 1 TB SATA HDD hot-pluggable?
A
Yes. The drive is fully hot-plug capable for easy replacement without shutdown.
Q
What is the native sector size of the drive?
A
The drive uses 512-byte native sectors (512N) for broad compatibility.
Q
Is this hard drive compatible with HP ProLiant servers?
A
Yes. The 858594-B21 is validated for use in HP ProLiant Gen8 and Gen9 server series.
Q
Can this HDD be used in RAID configurations?
A
Yes. It supports hardware RAID setups when paired with a compatible RAID controller.
Q
What is the sustained data transfer rate?
A
This drive delivers up to 6 Gb/s SATA throughput, with typical sustained rates around 150 MB/s.
Q
What is the mean time between failures (MTBF)?
A
The HP 1 TB SATA HDD has an MTBF rating of 1.4 million hours.
Q
What warranty coverage is provided?
A
HP provides a standard three-year limited warranty on the 858594-B21 drive.
Q
What are the drive’s physical dimensions?
A
Dimensions are 146 mm × 101.6 mm × 25.4 mm (L × W × H).
Q
How much power does the drive consume?
A
Typical power consumption is 7 W during read/write operations and 4 W at idle.
Q
What are the operating temperature ranges?
A
The drive operates between 5 °C and 55 °C ambient temperature.
Q
How do I install the HP 858594-B21 HDD?
A
Slide the drive into an available hot-plug bay, secure the tray, and allow the server to detect it automatically.
Q
What is the exact model number of this hard drive?
A
The full model identifier is HP 1 TB 3.5” LFF SATA 6 Gb/s 7.2K RPM 512N MDL Hot-Plug HDD (858594-B21).
