High-frequency trading (HFT) systems demand an extremely fast, reliable, and low-latency IT environment. From the processors to the networking stack and storage, every component must contribute to shaving off microseconds. While NVMe drives are often the first choice for storage in HFT, some firms and integrators still consider SATA SSDs for specific use cases. One such drive is the Samsung PM893, a popular enterprise-class SATA SSD. But is it truly suitable for high-frequency trading environments?
In this article, we’ll take a closer look at how the PM893 performs in latency-sensitive applications and whether it meets the demanding standards of HFT systems.
Storage plays a secondary, but still vital, role in HFT infrastructure. Although most trades are processed in memory, disk access is still needed for logging, audit trails, and periodic snapshots of critical data. Here are the storage characteristics typically required:
Ultra-low latency
High IOPS (especially for reads and small writes)
Consistent performance under load
Strong data protection (especially during power failures)
Compatibility with custom Linux-based or bare-metal systems
In most HFT setups, NVMe drives are preferred because of their direct PCIe connection to the CPU and low latency. But for certain non-trading-critical workloads, or where cost constraints exist, SATA SSDs like the PM893 may still play a role.
The Samsung PM893 SSD offers sequential read speeds up to 550 MB/s and random read IOPS up to 98,000, which are strong numbers for a SATA drive. It uses Samsung’s V-NAND technology and is built for enterprise-grade 24/7 reliability.
However, it’s important to note that SATA itself introduces latency limitations compared to NVMe. The SATA interface operates on an older protocol and has more overhead, resulting in higher latency, even if the SSD itself is high quality. This can be a concern in environments where every nanosecond matters.
That said, for tasks like:
System boot
Logging high-speed data feeds
Mirroring less time-sensitive datasets
Redundant logging or archival
…the PM893 can perform well without introducing significant bottlenecks.
One of the biggest strengths of the PM893 is its Power Loss Protection (PLP). In HFT environments, even brief outages can result in millions of dollars lost or corrupted transaction logs. With built-in PLP capacitors, the PM893 ensures that any data in-flight is safely written to storage if power is interrupted.
Additionally, the drive supports end-to-end data protection, which helps maintain data integrity across the entire I/O path. This is essential for maintaining clean, error-free logs and databases that are used for auditing or compliance.
While the PM893 may not be ideal for real-time order processing or in-memory trading databases, it can still be deployed in several HFT-related roles:
Logging Servers: Continuous writing of trading logs, market data, and system health metrics
Backup Systems: Redundant copies of critical databases stored at high speed
Boot Volumes: Quick and reliable server startup, especially in redundant setups
Analytics Nodes: Non-latency-sensitive systems performing delayed analysis or modeling
In these areas, the PM893 provides stable and predictable performance without the high cost associated with premium NVMe drives.
The PM893 uses a 2.5-inch SATA interface, which makes it compatible with a wide range of server platforms used in financial data centers. It works well with Linux-based systems commonly found in trading environments and supports standard tools for monitoring, such as S.M.A.R.T. and Samsung’s SSD management utilities.
Since many HFT setups favor bare-metal deployment or low-overhead virtual environments, the simplicity and ease of integration of SATA SSDs can be an advantage when setting up logging or utility services.
So, can you use the Samsung PM893 in high-frequency trading systems? Yes — but with some limitations. While the PM893 is not ideal for latency-critical operations like real-time order execution or high-speed market data ingestion, it fits well in supporting roles like logging, backups, and boot systems.
Its combination of enterprise reliability, power-loss protection, and consistent performance makes it a trustworthy choice where microsecond latency is not a hard requirement.
For mission-critical tasks in HFT, NVMe SSDs will still be the better option. But for everything else, the Samsung PM893 provides excellent value and dependable performance in the broader infrastructure supporting high-frequency trading.