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Elliot Raymond
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Mixed-use SAS SSD delivers steady performance. Suitable for virtualized environments.
873359-B21
HP G8 G9 400GB 2.5 SAS 12G MU SSD
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Name:
873359-B21
- Description:
- HP G8 G9 400GB 2.5 SAS 12G MU SSD
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- Hpe
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- Warranty:
- 3
- List Price:
$1,516.47
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873359-B21 Overview
873359-B21 is a high-performance HDD designed for demanding environments, offering a 3.5-inch form factor with a SATA III interface and a spindle speed of 7200 RPM. With a robust capacity of 10 TB and a generous 256 MB buffer, this drive is engineered to handle heavy data loads while delivering reliable performance for desktop, server, NAS, and surveillance applications.
Built for reliability with an annual workload rating of 550 TB/yr and featuring advanced technologies such as helium sealing, vibration protection, and dual actuator support, the 873359-B21 is well-suited for use in data centers, professional workstations, and high-capacity storage arrays. Its optimized power consumption of 7.5 Watts during active read/write operations and 5 Watts in idle mode ensures efficiency in varied operating environments.
873359-B21 price is $424.61, a 72% saving from the Hpe list price of $1,516.47. 873359-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 873359-B21 for additional pricing. Browse the full Hpe Server 2.5" Hard Drives series or explore all Hpe products.
873359-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
- 10 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)
- 7.5 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
- 873359-B21 High-Performance HDD
- Height
- 1.03 inches
- Width
- 5.78 inches
- Depth
- 4.02 inches
- Weight
- 3.53 lbs
873359-B21 Use Case
High-Performance OLTP Database Acceleration
In an enterprise data center running mission-critical SAP HANA or Oracle databases on HP ProLiant G8/G9 servers, integrating the 873359-B21 HP G8 G9 400GB 2.5 SAS 12G MU SSD delivers sub-millisecond latency and 200K+ IOPS. The outcome is faster transaction processing, improved SLA compliance and a 45% reduction in query response times for high-volume OLTP workloads.
Virtual Desktop Infrastructure (VDI) Performance Optimization
For SMBs and large enterprises deploying VMware Horizon or Citrix on HP ProLiant DL380 Gen9 platforms, the 873359-B21 HP G8 G9 400GB 2.5 SAS 12G MU SSD accelerates boot storms and application launches. This results in a 50% faster desktop login experience, consistent user performance during peak hour concurrency, and reduced storage footprint by up to 30%.
Real-Time Analytics and BI Acceleration
In analytics clusters running Microsoft SQL Server Analysis Services or Hadoop on HP ProLiant Gen8/Gen9 infrastructures, the 873359-B21 HP G8 G9 400GB 2.5 SAS 12G MU SSD ensures predictable low latency and high throughput. Businesses achieve up to 3× faster ETL processing, real-time dashboard refreshes, and accelerated decision-making in data-driven environments.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 873359-B21 |  K2P99B |  Q8S83A |  H6G51A |  765455-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 | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III / SAS 12Gb/s | SATA III | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 10 TB | 10 TB | 4 TB | 10 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 256 MB | 256 MB | 128 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 250 MB/s | Up to 210 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 180 TB/yr | 550 TB/yr | 180 TB/yr |
| Power Consumption (Read/Write) | 7.5 Watts | 8 Watts | 8 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 5 Watts | 4 Watts | 4 Watts | 5 Watts | 4 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 | Dual Actuator | Dual Actuator | Rotational Vibration Sensors | Dual Actuator |
| Operating Temperature | 5–60°C | 5–55°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 873359-B21 High-Performance HDD | K2P99B Enterprise HDD | Q8S83A Enterprise HDD | H6G51A Enterprise 10TB HDD | 765455-B21 |
| Height | 1.03 inches | 1.0 inches | 1.05 inches | 1.03 inches | 1.03 inches |
| Width | 5.78 inches | 5.8 inches | 5.8 inches | 5.8 inches | 4 inches |
| Depth | 4.02 inches | 4.0 inches | 8.2 inches | 7.8 inches | 5.79 inches |
| Weight | 3.53 lbs | 1.8 lbs | 2.3 lbs | 1.8 lbs | 2.2 lbs |
Reviews & Ratings
H
Hassan Rauf
5
Recognized instantly on Gen9 servers. Stable and responsive.
P
Petra Holtz
5
Good endurance and predictable throughput.
U
Usman Khalid
4
Handles mixed workloads well without performance drops.
V
Victor Stone
4
Reliable enterprise SSD for daily operations.
Questions & Answers
What is the HP 873359-B21 - HP G8 G9 400GB 2.5 SAS 12G MU SSD?
The HP 873359-B21 is a 400GB enterprise-grade multi-level cell SSD in a 2.5" form factor, featuring a dual-port SAS 12Gb/s interface optimized for HP ProLiant G8 and G9 servers.
Is the HP 873359-B21 compatible with HP ProLiant G8 and G9 servers?
Yes, the 873359-B21 is fully certified for HP ProLiant Gen8 and Gen9 platforms, ensuring seamless integration and optimal performance.
What are the sequential read and write speeds of the HP 873359-B21 SSD?
The SSD delivers up to 1,250 MB/s sequential read and 1,000 MB/s sequential write speeds over the SAS 12Gb/s interface.
What interface and form factor does the HP 873359-B21 use?
It uses a dual-port SAS 12 Gb/s interface in a standard 2.5" (SFF) form factor with a 12.75 mm z-height.
What is the endurance rating or DWPD of the HP 873359-B21?
The drive supports 1 Drive Write Per Day (DWPD) over a 3-year service life, equating to 438 TB total writes under enterprise workloads.
How do I install the HP 873359-B21 SSD in an HP server?
Insert the SSD into any available 2.5" SAS bay on your ProLiant G8/G9 server, secure the caddy, and the system will auto-detect the drive.
Can the HP 873359-B21 handle mixed or random I/O workloads?
Yes, it delivers up to 140,000 IOPS random read and 50,000 IOPS random write, ideal for mixed enterprise workloads.
What is the MTBF rating of the HP 873359-B21 SSD?
The drive features a Mean Time Between Failures (MTBF) of 2 million hours for high availability.
What operating temperature range does this SSD support?
The SSD operates reliably between 0 °C and 55 °C, meeting standard data center environmental requirements.
Does the HP 873359-B21 support data protection features like power loss protection?
Yes, it includes onboard capacitors for power-loss protection and end-to-end data path protection to ensure data integrity.
What warranty does HP provide for the 873359-B21 SSD?
HP offers a standard 3-year limited warranty with options for extended coverage and ProLiant support services.
How does SAS 12Gb/s interface benefit my storage performance?
SAS 12 Gb/s doubles the bandwidth of 6 Gb/s interfaces, reducing latency and increasing throughput for high-demand applications.
What is the typical power consumption of this SSD under active load?
Under active read/write operations it consumes approximately 5.5 W, and around 3.5 W during idle.
Is the HP 873359-B21 hot-swappable?
Yes, it supports hot-swap in compatible HP ProLiant enclosures, allowing drive replacement without server downtime.
What are common use cases for the HP 873359-B21 MU SSD?
It is ideal for database servers, virtualization, boot acceleration, and transaction-heavy workloads in enterprise environments.
How can I update the firmware on the HP 873359-B21 SSD?
Use the HP Smart Storage Administrator or Service Pack for ProLiant via iLO or server utilities to detect and apply firmware updates.