P21125-B21 HPE 400GB SFF SAS-12GBPS SSD Smart Carrier

Product Overview of the HPE P21125-B21 SSD SAS 12Gbps SSD

The HPE P21125-B21 is a high-performance enterprise-grade Solid State Drive (SSD) designed for write-intensive workloads. With its SAS 12Gbps interface and 2.5-inch SFF form factor, this drive is ideal for HPE ProLiant servers and Synergy platforms.

General Information

• Brand: HPE
• Model: P21125-B21
• Drive Type: Enterprise SSD
• Form Factor: 2.5-inch Small Form Factor (SFF)
• Interface: SAS 12Gbps
• Plug Type: Hot-Swappable
• Carrier: Smart Carrier (SC)
• Workload Type: Write Intensive

Technical Specifications

Storage Capacity & Memory

• Capacity: 400GB
• NAND Flash Type: Triple-Level Cell (TLC)
• Connectivity: Dual-Port SAS

Compatibility with HPE Servers

The HPE P21125-B21 SSD is fully compatible with a wide range of HPE ProLiant servers, including both DL and ML series. It is optimized for high reliability and performance in enterprise environments.

HPE ProLiant DL Series

• DL160 Gen10, Gen10 Base, Gen10 Entry
• DL180 Gen10, Gen10 Base, Gen10 Entry, SMB
• DL20 Gen10, Gen10 Entry, Performance, Solution
• DL325 Gen10, Gen10 Base, Gen10 Entry, Performance, Plus, SMB Solution, Solution
• DL360 Gen10, Gen10 Base, Gen10 Entry, High Performance, Low, Network Choice, Performance, Premium, SMB, SMB Network Choice, Solution, Special Server
• DL385 Gen10, Gen10 Base, Gen10 Entry, High-Performance, Performance, Plus, Plus Entry, SMB, Solution
• DL560 Gen10, Gen10 Base, Gen10 Entry, Performance
• DL580 Gen10, Gen10 Base, Gen10 Entry, Performance

HPE ProLiant ML Series

• ML350 Gen10, Gen10 Base, Gen10 Entry, High Performance, Performance, SMB, Solution, Special Server, Sub-Entry

Performance Details

• Drive Writes Per Day (DWPD): 10
• 30-Day Writes: 7134 TB
• Sequential Read Speed: 1095 MB/s
• Sequential Write Speed: 1000 MB/s
• Random Read IOPS (4KiB, Q16): 113,000
• Random Write IOPS (4KiB, Q16): 120,000
• Max Random Read IOPS (4KiB): 205,000@Q256
• Max Random Write IOPS (4KiB): 124,000@Q16
• Random Read Latency: 155 μs
• Random Write Latency: 90 μs

Power Consumption

• Idle: 3.63 W
• Random Read: 5.82 W
• Random Write: 5.82 W
• Sequential Read: 5.98 W
• Sequential Write: 6.47 W
• Maximum Power: 6.47 W

The HPE P21125-B21 SSD SAS-12GBPS WI 400GB SSD

The HPE P21125-B21 SSD SAS-12GBPS Write Intensive 400GB SFF Smart Carrier is a high-performance solid-state drive designed for enterprise environments where reliability, speed, and storage efficiency are critical. Specifically engineered for write-intensive workloads, this SSD offers unmatched performance in transactional databases, virtualization, and high-demand server environments. The SFF (Small Form Factor) design ensures optimal integration into dense server configurations, allowing IT professionals to maximize storage capacity without compromising system airflow or efficiency.

Features of HPE P21125-B21 SSD

12Gbps SAS Interface for Maximum Speed

One of the standout features of the HPE P21125-B21 is its SAS 12Gbps interface. This ultra-fast interface enables high-speed data transfer, ensuring that workloads that demand low latency and high throughput are handled efficiently. Compared to traditional SATA drives, the SAS interface delivers superior performance in multi-user environments and is particularly advantageous in write-intensive scenarios.

Write-Intensive

The HPE P21125-B21 is optimized for write-intensive applications. This SSD is ideal for scenarios involving heavy write operations such as transaction processing systems, database logging, and real-time analytics. It is engineered to sustain high write cycles without performance degradation, which makes it a reliable choice for enterprise-grade applications where data integrity and consistent speed are critical.

400GB Capacity for Efficient Storage

With a 400GB capacity, this SSD provides a balanced approach between storage size and high-speed performance. It is suitable for primary storage applications in enterprise servers, ensuring that sufficient space is available for critical datasets while maintaining fast access and retrieval times. This capacity also allows administrators to implement effective tiered storage strategies when combined with other storage devices.

Small Form Factor (SFF)

The 2.5-inch Small Form Factor (SFF) design allows easy installation in HPE ProLiant servers and storage systems. Its compact dimensions contribute to efficient server configurations and make it possible to install multiple SSDs in high-density server racks. This design also improves airflow and thermal management within the server chassis, ensuring consistent performance even under heavy workloads.

Random IOPS for Enterprise

This SSD supports up to 200,000 random read and 35,000 random write IOPS, making it ideal for multi-user workloads and environments with frequent data access. Random IOPS performance ensures quick response times for applications such as online transaction processing (OLTP), real-time analytics, and virtual desktop infrastructure (VDI), which rely on rapid access to random data blocks.

High-Performance Computing (HPC)

In HPC environments, where data processing speed is critical, the HPE P21125-B21 offers a reliable solution. Its high sequential read and write speeds allow researchers and engineers to process large datasets quickly, accelerating simulations, scientific computations, and other data-intensive applications.

Write-Intensive vs Read-Intensive Models

While the HPE P21125-B21 is a write-intensive SSD, HPE also offers read-intensive and mixed-use SSD models. Write-intensive models are optimized for environments with frequent data writes, whereas read-intensive drives prioritize rapid data retrieval for workloads such as streaming, content delivery, or analytical queries. Choosing the correct SSD type ensures optimal performance and cost-effectiveness.

Hot-Swap Capabilities

The SSD supports hot-swap installation, enabling drive replacement or upgrades without shutting down the server. This feature minimizes downtime and maintains operational continuity, which is critical in data center environments and enterprise deployments where uptime is non-negotiable.

Smart Carrier Benefits

The HPE Smart Carrier design enhances drive handling, installation, and removal. It reduces the risk of physical damage during deployment and ensures a secure connection within the server chassis. This ergonomic design is especially beneficial in environments with frequent drive replacements or upgrades.

HPE Smart Storage Technology

HPE’s Smart Storage technology integrates seamlessly with the P21125-B21 SSD, providing administrators with detailed health, performance, and utilization reports. These insights help proactively manage storage, prevent failures, and optimize performance according to workload requirements.