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846524-B21
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- HP 1TB 3.5-INCH LFF SAS 12GB/S 7.2K RPM 512N MDL DS HOT-PLUG HDD
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846524-B21
HP 1TB 3.5-INCH LFF SAS 12GB/S 7.2K RPM 512N MDL D...
$423.88
$169.55
12 in Global Warehouse
$169.55
60% off
TRUSTED, TRIED, PROVEN
846524-B21 Overview
846524-B21 is a high-performance HDD designed in a 3.5-inch form factor and built with a SATA III interface. It delivers a reliable 7200 RPM spindle speed, 4 TB of storage capacity, and a 256 MB cache, paired with an impressive MTBF of 2,000,000 hours and a rated reliability designed for continuous operation. This drive is engineered to handle heavy workloads while maintaining optimal performance in various environments.
846524-B21 offers excellent power efficiency with a read/write consumption of 8 W and idle consumption of 5 W. Featuring advanced capabilities such as helium-sealed construction, integrated vibration protection, and dual actuator technology, it is ideally suited for data centers, desktop systems, NAS devices, and surveillance applications where dependable, high-volume storage is critical.
What is the price of 846524-B21?
Lowest price of 846524-B21 is $ 169.55. Shop now! Get further exclusive discounts with bulk quotation on 846524-B21
Explore more options from Hard Drives & Ssds or explore other Hpe products.
846524-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) | 256 MB |
| Average Latency | N/A |
| Data Transfer Rate | Up to 250 MB/s |
| Annual Workload Rating | 300 TB/yr |
| Power Consumption (Read/Write) | 8 W |
| Power Consumption (Idle) | 5 W |
| Encryption Support | AES 256-bit |
| Helium Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay |
| Vibration Protection | Yes |
| Advanced Features | Dual Actuator |
| Operating Temperature | 5–60°C |
| Product Name | 846524-B21 Enterprise HDD |
| Height | 1 in |
| Width | 5.79 in |
| Depth | 4 in |
| Weight | 2.0 lbs |
846524-B21 Use Case
Accelerating Enterprise Transactional Databases with 846524-B21-HP SAS HDD
In a global financial services firm running high-volume SQL and Oracle workloads, the 846524-B21-HP 1TB 3.5-inch LFF SAS 12 Gb/s 7.2K RPM hot-plug HDD delivers low-latency, consistent I/O for transaction processing. By integrating these drives into HP ProLiant DL380 Gen10 servers, IT teams achieve predictable sub-5 ms response times and 24/7 uptime, improving customer satisfaction and reducing costly database locks.
Optimizing Virtualization Storage Tiers in VMware Environments
An e-commerce retailer consolidates hundreds of virtual machines on an HPE Synergy platform using 846524-B21-HP 1TB SAS hot-plug HDDs to separate cold and warm VM workloads. The 12 Gb/s interface maximizes throughput for non-critical VMs, freeing SSD capacity for performance-sensitive applications and lowering infrastructure cost by 30% while sustaining enterprise-grade reliability.
Scalable Nearline Backup and Archival for Compliance
A healthcare provider implements an on-premise backup cluster with HPE DL360 Gen10 servers populated with 846524-B21-HP 1TB SAS 7.2K RPM HDDs for daily imaging and long-term retention. The hot-plug design ensures rapid drive replacement, and 512e sector formatting boosts sequential write speeds, enabling 100 TB of compliant, redundant backups with 99.9% data availability and simplified regulatory audits.
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 | Dual Actuator | Dual Actuator | Dual Actuator |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 300 TB/yr | 550 TB/yr | 550 TB/yr |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Cache (Buffer Size) | 256 MB | 128 MB | 256 MB | 256 MB | 256 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 250 MB/s |
| Depth | 4.00 inches | 4.0 | 4 in | 4.00 inches | 4.02 inches |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | No | AES 256-bit |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Height | 1.03 inches | 1.03 | 1 in | 1.03 inches | 1.03 inches |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Interface | SATA III | SATA III | SATA III | SATA III | SAS 12Gb/s |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Power Consumption (Idle) | 7 Watts | 5 Watts | 5 W | 5.0 Watts | 6.0 Watts |
| Power Consumption (Read/Write) | 9 Watts | 8 Watts | 8 W | 9.0 Watts | 9.0 Watts |
| Product Name | K2P87B | 861691-B21 Enterprise HDD | 846524-B21 Enterprise HDD | 793665-B21 High Performance Enterprise HDD | Seagate Exos Enterprise 12TB 819201-B21 SAS 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 | 10 TB | 4 TB | 4 TB | 4 TB | 12 TB |
| Use Case | Desktop / Server / NAS / Surveillance | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Weight | 1.8 lbs | 1.8 | 2.0 lbs | 1.65 lbs | 3.3 lbs |
| Width | 5.78 inches | 5.79 | 5.79 in | 5.79 inches | 5.79 inches |
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Questions & Answers
Q
What is the storage capacity of the HP 846524-B21 HDD?
A
The HP 846524-B21 offers 1 TB of raw storage capacity, ideal for data-intensive applications.
Q
Which interface does this HP 3.5-inch HDD use?
A
This drive uses a 12 Gb/s SAS interface, delivering high-throughput data transfer and enterprise-class reliability.
Q
What is the form factor of the HP 846524-B21 drive?
A
It is a 3.5-inch large form factor (LFF) HDD, designed for compatible HP ProLiant and Integrity server bays.
Q
What spindle speed does the HP 1 TB SAS HDD operate at?
A
The drive spins at 7,200 RPM, balancing performance and energy efficiency for mixed-workload environments.
Q
What sector format does the HP 846524-B21 use?
A
It uses 512n (512-byte) native sectors, ensuring broad compatibility with operating systems and RAID controllers.
Q
Is the HP 846524-B21 HDD hot-pluggable?
A
Yes. It supports hot-plug insertion and removal, enabling easy drive swaps without server downtime.
Q
Which HP server models are compatible with this drive?
A
This HDD is fully compatible with HP ProLiant DL, ML, BL, and Integrity servers that support 3.5″ SAS 12 Gb/s disks.
Q
Can I use the HP 846524-B21 in RAID configurations?
A
Yes. It integrates seamlessly with HP Smart Array controllers for RAID 0, 1, 5, 6, 10, 50, and 60 configurations.
Q
What is the mean time between failures (MTBF) rating?
A
The drive is rated for up to 2.5 million hours MTBF, delivering high availability for enterprise workloads.
Q
What warranty covers the HP 846524-B21 hard drive?
A
This HDD is backed by a one-year limited warranty from HP and can be covered under extended Care Pack plans.
Q
What are the typical power consumption figures?
A
It consumes approximately 7 W at idle and up to 11 W during active read/write operations, optimizing energy use.
Q
What operating temperature range is supported?
A
The drive operates reliably between 5 °C and 55 °C (41 °F to 131 °F) with recommended humidity levels.
Q
How much noise does the HP 846524-B21 generate?
A
Typical operating acoustics are around 2.1 bels, minimizing disruption in data center and office environments.
Q
Is firmware update required before deployment?
A
HP recommends verifying and applying the latest firmware via Integrated Lights-Out (iLO) or Smart Update Manager for optimal performance.
Q
What are common use cases for this HDD?
A
Ideal for virtualization, database storage, backup, and high-capacity archival workloads in HP server environments.
Q
Can I mix this SAS drive with SATA drives in the same enclosure?
A
While the enclosure may support both, HP advises grouping SAS and SATA drives separately to maintain performance and compatibility.
