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Name:
432320-001
- Description:
- HP 146GB 10K 2.5 SAS SP HDD 431958-B21
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All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
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If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
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432320-001 Overview
432320-001 is an enterprise-grade HDD designed for high-demand environments, featuring a 3.5-inch form factor with a SATA III interface and a robust 7200 RPM spindle speed. With an 8 TB capacity paired with a 256 MB cache and an annual workload rating of 550 TB/yr, this drive delivers consistent performance and proven reliability, underscored by a high MTBF and 24/7 rated operational hours.
432320-001 also offers optimized power efficiency with a read/write consumption of 8 Watts and an idle consumption of 5 Watts. Advanced features such as helium sealing, vibration protection, and dual actuator technology enhance its performance, making it ideal for data centers, enterprise servers, desktop systems, NAS solutions, and surveillance applications.
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Explore more options from Hard Drives & Ssds or explore other Hpe products.
432320-001 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 250 MB/s |
| Annual Workload Rating | 550 TB/yr |
| Power Consumption (Read/Write) | 8 Watts |
| Power Consumption (Idle) | 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 | 5–60°C |
| Product Name | 432320-001 Enterprise Performance HDD |
| Height | 1.03 inches |
| Width | 4.00 inches |
| Depth | 5.79 inches |
| Weight | 1.80 lbs |
432320-001 Use Case
Accelerating VMware ESXi Virtual Hosts in Enterprise Data Centers
In a multi-tenant data center, IT teams integrate the HP 146GB 10K 2.5
Optimizing High-Transaction SQL Databases for Financial Services
A global banking firm deploys the 432320-001-HP 146GB 10K 2.5
Reliable Backup & Disaster Recovery in Remote Branch Offices
A nationwide retail chain equips its remote stores with HP ProLiant micro-tower servers populated with the HP 146GB 10K 2.5
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 | 300 TB/yr | 550 TB/yr | 180 TB/yr | 300 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 | 128 MB | 256 MB |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s |
| Depth | 6.94 inches | 5.79 inches | 6.9 inches | 4.00 inches | 5.8 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 | AES 256-bit | AES 256-bit |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 2.5-inch / 3.5-inch |
| Height | 1.03 inches | 1.03 inches | 1.0 inches | 1.03 inches | 1.0 inches |
| Helium Sealed | No | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III / SAS 12Gb/s |
| Operating Temperature | 5–60°C | 5–60°C | 5–55°C | 5–60°C | 5–55°C |
| Power Consumption (Idle) | 4 Watts | 5 Watts | 5 Watts | 5 Watts | 5 Watts |
| Power Consumption (Read/Write) | 8 Watts | 8 Watts | 8 Watts | 8 Watts | 7.5 Watts |
| Product Name | 497730-001 Enterprise HDD | 432320-001 Enterprise Performance HDD | M7S54AA | N2N01AA Enterprise HDD | M0F34AA High Performance 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 | 4 TB | 4 TB | 8 TB |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / NAS | Desktop / Server / NAS / Surveillance |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Weight | 2.2 lbs | 1.80 lbs | 2.5 lbs | 1.6 lbs | 1.5 lbs |
| Width | 5.79 inches | 4.00 inches | 4.0 inches | 5.79 inches | 4.0 inches |
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Questions & Answers
Q
What are the key specifications of the HP 146GB 10K 2.5″ SAS SP HDD (431958-B21)?
A
The HP 431958-B21 provides 146GB capacity, 10,000 RPM spindle speed, 2.5″ drive form factor, single-port 6 Gb/s SAS interface and 16 MB cache for enterprise storage performance.
Q
Which HP ProLiant servers support the 431958-B21 146GB 10K SAS HDD?
A
This drive is compatible with HP ProLiant Gen8, Gen9 and Gen10 rack and blade servers featuring LFF/SFF bays that support 2.5″ single-port SAS hot-swap drives.
Q
How do I install the HP 431958-B21 2.5″ SAS drive in my server?
A
Slide the drive into an available 2.5″ SAS bay until it clicks, then verify physical and logical recognition in the server BIOS or HPE Smart Storage Administrator.
Q
Can the HP 146GB 10K SAS SP HDD be hot-swapped?
A
Yes, the HP 431958-B21 supports hot-swap operation, allowing removal and replacement without shutting down the host server.
Q
What is the sustained data transfer rate for this HDD?
A
The HP 146GB 10K SAS drive delivers up to 205 MB/s sustained transfer rate over its 6 Gb/s SAS interface.
Q
Is the 431958-B21 covered by an HP warranty?
A
Yes, HP backs this drive with a standard three-year limited warranty and support when installed in qualified HPE ProLiant servers.
Q
What is the mean time between failures (MTBF) of the HP 146GB 10K SAS drive?
A
The HP 431958-B21 offers an MTBF of 1.4 million hours, ensuring enterprise-grade reliability for critical workloads.
Q
What does SP mean in the HP 146GB 10K SAS SP HDD?
A
SP stands for Single-Port, indicating the drive has one SAS port rather than dual-port redundancy.
Q
How does this 2.5″ SAS HDD compare to a 3.5″ drive?
A
The 2.5″ form factor offers higher rotational speeds, lower power consumption and better shock tolerance versus 3.5″ drives in the same class.
Q
What are the typical use cases for the HP 431958-B21 drive?
A
Ideal for tier-1 enterprise applications, virtualization, database logging and high-performance computing where low latency and high IOPS are required.
Q
What power consumption should I expect from the HP 146GB 10K SAS drive?
A
Average operating power is approximately 7 W, with maximum power draw of 9 W during spin-up.
Q
Can I mix HP 431958-B21 drives with other SAS HDDs in the same array?
A
While technically possible, mixing different models can affect performance and RAID rebuild times; HP recommends identical drives for uniform performance.
Q
How do I monitor the health of the HP 146GB 10K SAS SP HDD?
A
Use HPE Integrated Lights-Out (iLO) and Smart Storage Administrator to track SMART attributes, drive temperature and error counters in real time.
Q
What are the physical dimensions of the HP 431958-B21?
A
The drive measures 100 mm × 69.85 mm × 15 mm (L × W × H) and weighs approximately 92 g without caddy.
Q
Is firmware upgradable on the HP 146GB 10K 2.5″ SAS HDD?
A
Yes, firmware updates are available via HPE Smart Storage Administrator to ensure compatibility, performance and reliability improvements.
