Seagate Cheetah T10 146GB 15,000RPM SAS Hard Drive - High-Performance

In this review the Seagate Cheetah T10 ST3146755SS is presented as a focused drive for server and workstation use; the bottom line is that it delivers consistent, high spindle-speed performance in a 3.5in SAS form factor. Our review finds it best suited to legacy enterprise systems and applications that need fast rotational latency rather than large capacity. The drive's 15,000RPM speed and dedicated SAS interface mean it excels where low latency and sustained I/O are more important than density, and its compact 146GB capacity and 16MB cache reflect that design intent.

Key Features

• 146GB capacity: Provides a modest but reliable block of storage well matched to boot volumes, logs, and database segments that benefit from high rotational speed.
• 15,000RPM spindle: Reduces average latency and improves random read/write responsiveness for transactional workloads.
• SAS interface: Offers enterprise-grade connectivity and multipath support for servers and storage arrays that require robust link management.
• 3.5in form factor: Fits standard enterprise drive bays while keeping cabling and mounting conventional for rack and tower systems.
• 16MB cache: Helps smooth burst transfers and small I/O operations for better perceived performance in mixed workloads.
• Compact package: Shipped as a single unit with modest package dimensions and a lightweight 1.63 pound package weight for convenient handling.

Who It's For

The Cheetah T10 is aimed at IT professionals maintaining older server racks, SANs, or archival systems where legacy SAS support and spindle speed matter. It is a practical choice for administrators who need deterministic performance for small-block databases, mail servers, or virtual machine hosts that favor IOPS over capacity.

Those seeking large modern capacities, lower power draw, or the absolute latest NAND-based performance should look elsewhere. Consumers focused on desktop storage, multimedia libraries, or cost-per-gigabyte will find better value in higher-capacity or flash-based options.

Pros & Cons

Pros

• High 15,000RPM spindle speed delivers low latency and strong random I/O performance.
• Enterprise SAS interface provides reliable connectivity and server-class handling.
• Small 146GB capacity and 16MB cache are well suited for dedicated system volumes and transactional data.
• Standard 3.5in size fits common server bays without adapters.

Cons

• Capacity is limited by modern standards, so it is not ideal as a primary archive or bulk storage drive.
• Older design means higher power and noise compared with contemporary SSD options.

Specifications

Model	Seagate Cheetah T10 ST3146755SS
Capacity	146GB
Spindle Speed	15,000RPM
Interface	SAS
Form Factor	3.5in
Cache	16MB
Package Weight	1.63 Pounds

Our Verdict

The Seagate Cheetah T10 is a sensible buy for administrators who need dependable, low-latency spinning media for legacy servers and targeted enterprise tasks. Its 15,000RPM spindle and SAS link make it valuable where predictable random I/O matters, though modern deployments seeking density or energy efficiency should consider newer alternatives. For its intended use cases it remains a practical, purpose-built drive.

Frequently Asked Questions

Is this drive suitable for modern servers?
Yes for legacy environments that support SAS and need high spindle speed, but newer servers may prefer higher-capacity or SSD options for efficiency.

What is the physical size of the drive?
The drive uses a standard 3.5in form factor and ships in a package with compact outer dimensions.

How much cache does it have?
The drive includes a 16MB cache to help with burst and small I/O operations.