Seagate ST2400MM0129 EXOS 2.4TB 10K SAS Hard Drive

Name: Seagate ST2400MM0129 EXOS 2.4TB 10K SAS Hard Drive
Brand: Seagate
SKU: ST2400MM0129

Overview

The Seagate Exos 10E2400 (ST2400MM0129) is a 2.4TB enterprise SAS hard drive built for servers, storage arrays, and data center infrastructure that demand consistent high-performance I/O. Spinning at 10,000 RPM with a generous 256MB cache, this 2.5-inch drive is engineered to handle the heavy, sustained workloads typical of database servers, virtualization hosts, and transactional storage tiers. Its SAS interface provides the reliability features enterprise environments require, including dual-port capability for redundant path failover in multipath configurations.

As part of Seagate's Exos family — their top-tier enterprise line — the 10E2400 is rated for 24/7 operation and designed to endure the rigors of always-on data center use. The 2.5-inch form factor enables dense deployment in rack-mounted servers and storage shelves, making it a practical choice for organizations looking to maximize performance per rack unit. While SSD adoption continues to grow in enterprise settings, the Exos 10E2400 remains a cost-effective solution for workloads that benefit from high-capacity spinning media with significantly better random performance than standard 7,200 RPM nearline drives.

Key Features

ST2400MM0129

Specifications

Model

ST2400MM0129

Capacity

2.4TB

Interface

SAS

Form Factor

2.5"

Spindle Speed

10,000 RPM

Cache

256MB

Brand

Seagate

Product Line

Exos 10E2400

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Pros & Cons

👍 Pros

10,000 RPM spindle speed provides faster random read/write performance than 7,200 RPM alternatives
256MB cache buffer helps optimize I/O throughput under heavy multi-user workloads
2.5-inch form factor allows high-density deployment in enterprise storage arrays
SAS interface supports dual-port connectivity for redundant path failover
2.4TB capacity offers a strong balance of speed and storage for enterprise applications

👎 Cons

SAS interface requires a compatible HBA or RAID controller, limiting use in consumer desktops
2.5-inch mechanical drives at 10K RPM can produce noticeable vibration in lightly built enclosures
Higher cost per gigabyte compared to larger-capacity 7,200 RPM nearline SAS drives
2.4TB capacity is modest compared to high-capacity nearline drives available at 18TB and above
Mechanical drive performance still falls well behind SSDs for latency-sensitive applications

Frequently Asked Questions

What interface does the Seagate Exos 10E2400 use, and is it compatible with SATA controllers?

This drive uses a SAS (Serial Attached SCSI) interface, which is not directly compatible with SATA controllers. You need a SAS-capable HBA or RAID controller to use this drive.

What is the form factor of this drive?

The ST2400MM0129 is a 2.5-inch form factor drive, designed to fit in server and storage enclosure bays that accept 2.5" SAS drives.

How does the 256MB cache benefit performance on this drive?

The 256MB cache acts as a buffer between the drive platters and the SAS interface, allowing the drive to queue and optimize read/write operations, which significantly improves random I/O performance in multi-user enterprise environments.

Is this drive suitable for 24/7 operation?

Yes. The Exos line is Seagate's enterprise tier, engineered for continuous 24/7 operation in data center and server environments with high workload ratings.

What is the rated workload for this drive?

Seagate rates the Exos 10E2400 for enterprise-class workloads, supporting up to 550TB per year of data transferred — far above what desktop drives are designed to handle.