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Colin Murphy
4
Reliable read-intensive SAS SSD. Fast and consistent.
P04547-B21
HPE 3.2TB SAS 12G Write Intensive SFF (2.5in) SC 3yr Wty Dig...
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P04547-B21
- Description:
- HPE 3.2TB SAS 12G Write Intensive SFF (2.5in) SC 3yr Wty Digitally Signed Firmware SSD
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P04547-B21 Overview
P04547-B21 is a high-performance HDD engineered for demanding applications. This drive features a 3.5-inch form factor equipped with a SATA III interface and operates at a spindle speed of 7200 RPM. It delivers a 4 TB storage capacity with a 64 MB cache, and it is designed to handle an annual workload rating of 180 TB/yr. The drive’s robust design includes an MTBF exceeding 1,000,000 hours and is built to meet the rigorous reliability standards required for continuous operation throughout the year.
Optimized for various use cases including desktop, server, NAS, and surveillance environments, P04547-B21 offers efficient power performance with 6.7 Watts during read/write operations and 4.5 Watts when idle. While it does not incorporate advanced features such as helium sealing, vibration protection, or dual actuators, its proven durability and reliability make it an ideal solution for data centers and high-demand computing systems.
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P04547-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)
- 64 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 250 MB/s
- Annual Workload Rating
- 180 TB/yr
- Power Consumption (Read/Write)
- 6.7 Watts
- Power Consumption (Idle)
- 4.5 Watts
- Encryption Support
- No
- Helium Sealed
- No
- Drive Bays Supported
- Single
- Vibration Protection
- No
- Advanced Features
- N/A
- Operating Temperature
- 5–55°C
- Product Name
- P04547-B21
- Height
- 1.0 inches
- Width
- 5.8 inches
- Depth
- 4.0 inches
- Weight
- 4.5 lbs
P04547-B21 Use Case
High-Frequency Trading Database Acceleration
In a global investment bank, P04547-B21 SSDs are installed as transaction-log volumes on HPE ProLiant servers to sustain sub-1ms write latency during peak order matching. Outcome: Delivers 12 Gbit/s throughput and 300K+ IOPS, reduces trade settlement time by 50%, and enforces data integrity with digitally signed firmware.
Enterprise Virtual Desktop Infrastructure (VDI) Boot Storm Mitigation
A large enterprise deploys 1,500 virtual desktops on HPE Synergy, using P04547-B21 drives for OS boot and user-profile volumes to absorb concurrent login writes. Outcome: Cuts boot-storm duration by 45%, boosts sustained write IOPS by 70%, and ensures consistent end-user performance under heavy workloads.
Continuous Security Log Ingestion for SIEM
A Fortune 500’s Security Operations Center leverages P04547-B21 SSDs in HPE server clusters to handle multi-TB daily log streams for real-time threat analytics. Outcome: Enables 24/7 write-intensive ingestion at 12 Gbit/s, doubles detection speed, and maintains audit-grade data authenticity via cryptographically signed firmware.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| P04547-B21 |  653957-001 |  765464-B21 |  868814-B21 |  831735-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 | Enterprise Storage |
| Interface | SATA III | SATA III | 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 | 4 TB | 8 TB | 10 TB | 4 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 64 MB | 256 MB | 256 MB | 128 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 250 MB/s | Up to 210 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 180 TB/yr | 300 TB/yr | 550 TB/yr | 180 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 6.7 Watts | 8 Watts | 8 Watts | 8 Watts | 8.0 Watts |
| Power Consumption (Idle) | 4.5 Watts | 5 Watts | 5 Watts | 5 Watts | 4.0 Watts |
| Encryption Support | No | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | No | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Single | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | No | Yes | Yes | Yes | Yes |
| Advanced Features | N/A | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–55°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | P04547-B21 | 653957-001 Enterprise HDD | 765464-B21 Enterprise HDD | 868814-B21 High Performance SATA HDD | 831735-B21 HDD Enterprise Drive |
| Height | 1.0 inches | 1.0 inches | 1.043 inches | 1.0 inches | 1.05 inches |
| Width | 5.8 inches | 4.0 inches | 4.0 inches | 5.8 inches | 5.8 inches |
| Depth | 4.0 inches | 5.8 inches | 5.78 inches | 4.0 inches | 4.0 inches |
| Weight | 4.5 lbs | 3.3 lbs | 2.2 lbs | 2.0 lbs | 3.5 lbs |
Reviews & Ratings
H
Hadi Abbas
4
Installed in production servers without issues.
R
Renata Silva
5
Improved read performance significantly.
T
Talha Javed
5
Stable SSD for enterprise read-heavy workloads.
V
Victor Chen
4
Performs exactly as specified.
Questions & Answers
What is the storage capacity of the HPE P04547-B21 SSD?
The HPE P04547-B21 SSD delivers 3.2 TB of raw storage capacity in a 2.5-inch small form factor, optimized for high-density, write-intensive data center applications.
Which interface does the HPE 3.2 TB SAS 12G SSD use?
This SSD uses a 12 Gb/s SAS (Serial Attached SCSI) interface, providing enterprise-grade connectivity, high reliability, and backward compatibility with 6 Gb/s SAS environments.
What form factor is the P04547-B21 SSD?
The P04547-B21 is a 2.5-inch small form factor (SFF) SSD, supporting standard hot-swap bays in HPE ProLiant servers and storage enclosures.
Is this SSD optimized for write-intensive workloads?
Yes. The HPE P04547-B21 SSD is rated for write-intensive applications, delivering sustained performance and endurance for database logging, virtual desktops, and transaction-heavy systems.
Does the HPE 3.2 TB SAS SSD include digitally signed firmware?
Yes. It comes with HPE digitally signed firmware to ensure secure boot, integrity validation, and compliance with enterprise security policies.
What warranty is provided with the HPE P04547-B21 SSD?
HPE includes a 3-year limited warranty covering defects in materials and workmanship, with optional HPE Care Pack extensions for enhanced support and coverage.
Is the P04547-B21 SSD compatible with HPE ProLiant servers?
Absolutely. It is fully validated for HPE ProLiant Gen10 and Gen11 servers, ensuring seamless integration, hot-swap capability, and management via HPE iLO.
What performance can I expect from the 3.2 TB SAS SSD?
Typical performance for the P04547-B21 is up to 200,000 sustained random read IOPS and 80,000 random write IOPS, with sequential throughput up to 2,100 MB/s.
What are the primary use cases for this write-intensive SSD?
Ideal for online transaction processing (OLTP), database logging, virtualization, and big data analytics where high write endurance and low latency are critical.
What endurance rating does the HPE 3.2 TB SAS SSD offer?
The drive provides up to 30 Drive Writes Per Day (DWPD) over a 3-year period, ensuring reliable operation under sustained write-intensive workloads.
How do I install the HPE P04547-B21 SSD?
Power down or use hot-swap bays in a compatible HPE chassis, insert the drive into an available 2.5-inch slot, and verify detection via HPE iLO or Smart Array controller.
How can I update the SSD firmware securely?
Use HPE Service Pack for ProLiant (SPP) or HPE Smart Update Manager (SUM) to apply the latest digitally signed firmware, ensuring secure validation and minimal downtime.
What troubleshooting steps should I follow for drive errors?
Check firmware version in iLO, verify SAS connectivity, review system event logs for SMART alerts, reseat the drive, and apply the latest firmware via HPE SUM.
How does this SSD compare to read-intensive models?
Write-intensive SSDs like the P04547-B21 offer higher endurance (up to 30 DWPD) and sustained write performance, whereas read-intensive models prioritize cost-effective read IOPS.
How should I retire or recycle the HPE 3.2 TB SAS SSD?
Follow HPE’s end-of-life guidelines: securely erase data with HPE Secure Erase, remove from service, and recycle through certified e-waste programs to ensure data protection.