IBM 146.8GB 15,000 RPM SAS 6Gb/s Enterprise Hard Drive

Model: ST9146852SS | IBM PN: 44V6845 | Feature Code: 1884 / 1912 | 146.8GB Capacity | 15K RPM

The IBM 44V6845 is a high-performance mission-critical drive designed for the IBM Power Systems and PowerQuest environments. Based on the Seagate Savvio 15K.2 platform, this drive is specifically engineered to handle the rigorous I/O requirements of AIX, IBM i, and Linux partitions. While it shares a base model number with other enterprise drives, the 44V6845 features specialized IBM firmware and formatting (often 528-byte sectors) to support the advanced data integrity and RAID functions of IBM Power hardware.

📊 Technical Specifications

• Capacity: 💾 146.8 GB

• Interface: ⚡ SAS 6Gb/s (Dual Port)

• Spindle Speed: 🏎️ 15,000 RPM

• Cache: 🧠 16 MB

• Form Factor: 📏 2.5-inch SFF (15mm)

• Sector Format: 💾 528-byte sectors (Standard for IBM Power/i)

• Average Latency: ⏱️ 2.0 ms

• MTBF: 🕒 1.6 Million Hours

✅ Product Overview

• IBM Power Systems Optimization: This drive is a designated "Feature Code" (FC 1884 or 1912) for IBM Power7 and Power8 systems. It is built to communicate with specialized IBM storage controllers that require the 528-byte sector format for hardware-level parity and checksums.

• Tier-1 Speed: The 15,000 RPM rotational speed minimizes "seek time," making it one of the fastest mechanical storage options available for transactional processing where high IOPS (Input/Output Operations Per Second) are required.

• Dual-Port SAS Reliability: The dual-port interface provides two independent paths to the data, ensuring that the drive remains accessible even if one controller or cable path fails—critical for 24/7 enterprise uptime.

📦 Compatibility & Use Case

• Target Systems: Specifically designed for IBM Power Systems (S814, S822, S824, 720, 740) and associated SAS Disk Enclosures.

• Carrier Type: This drive is usually mounted in the SFF-1 or SFF-2 tray depending on the specific IBM chassis. Ensure your tray matches your server's backplane (e.g., the Gen2 tray for Power7/Power8).

• Ideal Workloads: Mission-critical AIX/IBM i OS boot volumes, high-speed database logging, and high-frequency transaction processing (OLTP).