Western Digital RE 250GB SATA 3Gb/s 7200RPM 16MB Cache 3.5-inch Internal Hard Drive – WD2500YS

Western Digital RE 250GB SATA 3Gb/s 7200RPM 3.5-inch Enterprise HDD — WD2500YS

The Western Digital RE WD2500YS is a 250GB enterprise-grade 3.5-inch SATA 3Gb/s hard drive spinning at 7200RPM with 16MB cache. Part of WD”s RE (RAID Edition) series, it is designed for 24/7 continuous operation in RAID arrays, NAS systems, and enterprise servers. RAID-specific error recovery controls (TLER) prevent RAID controller timeouts during error recovery — a critical feature for reliable RAID array operation.

Key Features

• RAID Edition (RE): TLER (Time-Limited Error Recovery) for reliable RAID operation
• 7200RPM: High-speed spindle for strong performance
• 24/7 Rated: Built for continuous enterprise server operation
• SATA 3Gb/s: Standard enterprise storage interface
• 16MB Cache: Buffer for improved throughput
• Vibration Compensation: Dual-stage actuator for multi-drive enclosures

Drive Specifications

• Part Number: WD2500YS
• Capacity: 250GB
• Interface: SATA 3Gb/s
• Form Factor: 3.5-inch
• RPM: 7200
• Cache: 16MB
• Error Recovery: TLER (RAID Edition)

Use Cases

• RAID Arrays: TLER-enabled for reliable hardware and software RAID
• NAS Systems: 24/7 rated for always-on NAS storage
• Entry-Level Servers: Reliable storage for file and application servers
• Archival Storage: Long-term data retention in enterprise environments

Compatibility Notes

• Compatible with any server or system with a SATA 3Gb/s or SATA 6Gb/s interface (backward compatible)
• TLER feature ensures compatibility with hardware RAID controllers
• Compatible with Dell PowerEdge, HP ProLiant, and NAS enclosures
• Supported on Windows Server, Linux, and VMware ESXi

Frequently Asked Questions

What is TLER and why does it matter for RAID?

TLER (Time-Limited Error Recovery) limits the drive”s error recovery time to prevent RAID controllers from dropping the drive during error recovery — a common cause of RAID array failures with desktop drives.

Can I use this drive in a desktop PC?

Yes — the WD2500YS works in desktop PCs, but its enterprise features (TLER, 24/7 rating) are primarily beneficial in RAID and server environments.

Is SATA 3Gb/s compatible with SATA 6Gb/s ports?

Yes — SATA 3Gb/s drives are backward compatible with SATA 6Gb/s ports, operating at 3Gb/s speeds.

Product Details

• Part Number: WD2500YS
• Manufacturer: Western Digital
• Model: RE (RAID Edition)
• Product Type: Enterprise 3.5-inch SATA Hard Drive

Whether you are populating a RAID array, expanding NAS storage, or replacing a failed enterprise drive, the Western Digital RE WD2500YS delivers the TLER reliability, 7200RPM performance, and 24/7 enterprise rating your storage environment demands.