HPE 400GB 2.5" SAS 12Gb/s WI SC SSD

Overview

The HPE P21125-B21 is a 400GB solid state drive designed for enterprise environments that require high-performance storage with reliable endurance. It fits into a standard 2.5-inch bay and connects via a 12 Gb/s SAS interface, making it suitable for HPE ProLiant servers. This SSD is optimized for write-intensive workloads, delivering up to 120,000 write IOPS and 205,000 read IOPS, along with a sustained transfer rate of 1.2 GB per second, ensuring fast and consistent data access.

Its endurance rating of 10 full drive writes per day supports demanding applications such as transactional databases, real-time analytics, and virtualization hosts. The drive comes pre-installed in an HPE Smart Carrier, allowing hot-swapping without powering down the server, which helps maintain uptime in critical systems.

Key features

• High write endurance supports continuous logging, database updates, and caching without premature wear.
• Hot-swap Smart Carrier enables tool-less installation and removal, minimizing downtime during maintenance.
• Activity and status LEDs provide clear visual indicators for drive health and operation.
• Low power consumption of 6.47 watts helps maintain efficient thermal management in dense server racks.
• Solid latch design prevents accidental drive removal, enhancing system reliability.
• Compatible with HPE ProLiant Gen8, Gen9, and Gen10 servers for seamless integration.
• Three-year limited warranty offers peace of mind for long-term deployments.

Key specs

• Storage capacity: 400 GB
• Form factor: 2.5 inch
• Interface: SAS 12 Gb/s
• Write IOPS: up to 120,000
• Read IOPS: up to 205,000
• Sustained transfer rate: 1.2 GB/s
• Endurance: 10 full drive writes per day
• Power consumption: 6.47 watts typical
• Warranty: three-year limited

Connectivity and compatibility

This SSD connects through a 12 Gb/s SAS interface, which is widely used in enterprise storage systems for its high throughput and reliability. It is designed specifically for HPE ProLiant Gen8, Gen9, and Gen10 servers, ensuring compatibility and optimized performance within these platforms. The drive’s hot-swap capability allows it to be replaced or added without shutting down the server, supporting continuous operation in critical environments.

Ideal uses and environments

The HPE 400GB SAS SSD is well suited to environments that demand consistent high-speed write performance and durability. It excels in transactional database systems that require thousands of updates per second, real-time analytics workloads that frequently rewrite large data sets, and virtualization hosts managing heavy write traffic from multiple virtual machines. Its endurance and low latency make it a strong choice for data centers and enterprise IT setups where reliability and uptime are paramount.