IBM 36.4GB 10,000 RPM SAS 3Gb/s Enterprise Hard Drive

Model: ST936701SS | IBM PNs: 26K5849, 39R7364, 40K1051 | Feature Code: 5125 | 36.4GB Capacity | 10K RPM

The IBM 26K5849 (Seagate Savvio 10K.1 platform) is a historic piece of enterprise storage, representing the very first generation of the 2.5-inch Small Form Factor (SFF) SAS revolution. While its 36.4GB capacity is diminutive by today's standards, this drive was a game-changer for the IBM eServer and early System x eras, allowing for double the drive density in a 1U server compared to traditional 3.5-inch drives. It is a vital legacy component for maintaining vintage hardware that requires specific low-capacity SAS volumes.

📊 Technical Specifications

• Capacity: 💾 36.4 GB

• Interface: ⚡ SAS 3Gb/s (Dual Port)

• Spindle Speed: 🏎️ 10,000 RPM

• Cache: 🧠 8 MB

• Form Factor: 📏 2.5-inch SFF (15mm)

• MTBF: 🛡️ 1.4 Million Hours

• Sector Format: 💾 512n (Native)

• Recording Technology: 🖋️ CMR (Conventional Magnetic Recording)

✅ Product Overview

• The SFF Pioneer: Built on the Savvio 10K.1 architecture, the world's first 2.5-inch enterprise-grade 10K RPM drive. It proved that smaller platters could deliver the same reliability and speed as larger drives while using significantly less power.

• IBM eServer Optimization: Loaded with certified IBM microcode to ensure 100% compatibility with ServeRAID controllers and early BladeCenter modules. This allows for accurate hardware health monitoring and "Predictive Failure Analysis" (PFA).

• Legacy Compatibility: Specifically designed for the transition period between Ultra320 SCSI and SAS, making it a "must-have" for technical support and maintenance of legacy 9th-generation-equivalent IBM hardware.

• Dual-Port Reliability: Even in this early generation, the drive featured a dual-port SAS interface, providing the necessary redundancy for enterprise failover environments.

📦 Compatibility & Use Case

• Target Systems: Optimized for IBM eServer xSeries (x336, x346, x366), System x (x3550, x3650 early models), and BladeCenter HS20/HS21.

• Ideal Workloads: Dedicated legacy OS boot partitions (Windows Server 2003/2008, early Linux distros), maintenance of existing RAID-1 mirror sets, and replacement parts for legacy industrial control systems.