IBM 3TB SAS 6GB/s 7.2K RPM LFF 3.5'' HDD ST33000650SS 81Y3831 81Y9758 81Y9759
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- Specifications
- Description
| Manufacturer Part Number | 81Y9759 |
| Manufacturer | IBM |
| Condition | Refurbished |
| Standard Warranty | 90 Day Replacement Warranty |
| Item Category | SAS Hard Drives |
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IBM 3TB SAS 6Gb/s 7.2K RPM LFF 3.5" HDD ST33000650SS 81Y3831 81Y9758
The IBM 3TB 7.2K SAS HDD (81Y9758 / 81Y3831) is an enterprise-class nearline hard drive manufactured by Seagate (model ST33000650SS), part of the Constellation ES.2 series. It is designed for high-capacity, reliable storage in IBM System x servers and enterprise storage environments.
Related Part Numbers
49Y7440, 81Y3831, 9SM260-039, ST33000650SS, ST33000650SS-IBM, 81Y9758
Core Technical Specifications
- Capacity: 3TB (3000GB)
- Interface: SAS 6Gb/s (Serial Attached SCSI)
- Form Factor: 3.5-inch LFF (Large Form Factor)
- Rotational Speed: 7,200 RPM
- Cache: 64MB
- Drive Type: Nearline (NL-SAS), Hot-Swap
Performance
- Sustained Transfer Rate: Up to 155 MB/s
- Average Latency: 4.16 ms
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Average Seek Time:
- Read: 8.5 ms
- Write: 9.5 ms
Reliability & Endurance
- MTBF: 1.2 Million Hours
- Workload Type: Nearline / Bulk Storage
- Designed for continuous enterprise operation
Physical & Environmental
- Dimensions: 1.028" H x 4.01" W x 5.787" D
- Weight: ~1.54 lbs (700g)
- Operating Temperature: 5°C to 60°C
- Humidity: 5% to 90% (non-condensing)
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Power Consumption:
- Idle: ~7.4W
- Active: ~11.3W
Part Number Cross-Reference
- IBM Feature Code: 81Y9758
- IBM FRU: 81Y3831
- IBM Assembly: 81Y9759
- OEM Model: Seagate ST33000650SS
Compatibility
- Designed for IBM System x servers and Storwize storage systems
- Compatible with enterprise systems supporting:
- 3.5" SAS hot-swap bays
- 6Gb/s SAS controllers
Key Features
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Enterprise Nearline Storage:
Ideal for bulk data, backups, and archival workloads -
SAS Reliability:
Dual-port SAS interface for improved data integrity and availability -
Hot-Swap Capability:
Allows replacement without system downtime -
Proven Platform:
Based on Seagate’s Constellation ES.2 enterprise drive family
Important Notes
- Not compatible with SATA-only systems unless using compatible SAS controllers
- Designed for enterprise/server use (not typical desktop environments)
- Performance is optimized for capacity and reliability rather than high IOPS
Summary
The IBM 3TB 7.2K SAS 3.5" HDD (ST33000650SS / 81Y9758) is a dependable nearline enterprise drive offering solid capacity, SAS reliability, and consistent performance. It is well-suited for data centers and storage environments requiring cost-effective, high-capacity storage solutions.