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Overview
The Seagate ST33000650NS is a 3TB enterprise internal hard disk drive from the Constellation ES.2 family. Designed for compatible servers and enterprise storage environments, this 3.5-inch SATA drive provides high-capacity magnetic storage for business data, file repositories, and other storage workloads.
The drive combines a 7200 RPM spindle speed, a 64MB cache buffer, and a SATA 6Gb/s interface. Its enterprise-oriented design includes rotational vibration tolerance, Native Command Queuing, and SMART monitoring support.
Performance and Connectivity
The ST33000650NS supports SATA interface transfer rates up to 6Gb/s, equivalent to a theoretical interface bandwidth of 600 MB/s. Its specified maximum sustained data transfer rate is up to 155 MB/s at the outer diameter of the disk. Actual throughput varies with workload, data location, controller capabilities, and system configuration.
The drive supports Native Command Queuing and ATA transfer modes, including Ultra DMA modes 0–6. Its 7200 RPM spindle speed and 64MB cache support conventional enterprise hard-drive workloads.
Compatibility and Installation
This model is a SATA drive, not a SAS drive. It requires a compatible 3.5-inch drive bay, a supported SATA controller, and suitable power connections.
- Server compatibility: Confirm that the server supports this SATA drive model and its 3TB capacity.
- Storage controllers: Check the controller's support for drives larger than 2TB, including the required partitioning and addressing capabilities.
- Power requirements: The drive requires +5V and +12V power rails.
- Mechanical installation: Confirm that the enclosure supports a 3.5-inch internal drive and provides appropriate mounting and airflow.
- RAID deployments: Verify compatibility with the intended RAID controller and storage configuration before installation.
Seagate specifically advises validating the configuration with the selected host bus adapter or RAID controller to ensure support for the drive's full 3TB capacity.
Key Features
- 3TB storage capacity: Provides high-capacity storage for compatible enterprise systems.
- 7200 RPM spindle speed: Supports conventional mechanical storage workloads.
- SATA 6Gb/s interface: Connects to compatible SATA controllers with support for the drive's interface.
- 64MB cache buffer: Provides onboard buffering for drive operations.
- Enterprise monitoring and command support: Includes SMART monitoring and Native Command Queuing functionality.
Applications
- Enterprise servers: Internal data storage in compatible SATA-based server platforms.
- Business storage systems: Capacity expansion in compatible storage appliances and enclosures.
- RAID storage: Potential deployment in supported SATA RAID configurations after controller compatibility verification.
- Bulk-data repositories: Storage of business files, archives, and other large datasets.
DC Supplies Product Note
The 3TB capacity makes host-controller compatibility particularly important. Some older systems and storage controllers cannot address the full capacity of drives larger than 2TB. Before purchasing this model as a replacement or expansion drive, verify 3TB support and confirm that the system uses SATA rather than SAS connectivity.
Specifications
| Brand | Seagate |
|---|---|
| Part Number / MPN | ST33000650NS |
| Product Type | Enterprise Internal Hard Disk Drive |
| Product Family | Seagate Constellation ES.2 |
| Storage Capacity | 3TB |
| Drive Technology | Mechanical hard disk drive |
| Form Factor | 3.5-inch |
| Interface | Serial ATA (SATA) |
| Maximum Interface Transfer Rate | 6Gb/s |
| Maximum Interface Bandwidth | 600 MB/s |
| Maximum Sustained Data Transfer Rate | Up to 155 MB/s at the outer diameter |
| Spindle Speed | 7200 RPM |
| Cache Buffer | 64MB |
| Average Latency | 4.16 ms |
| Average Read Seek Time | 8.5 ms typical |
| Average Write Seek Time | 9.5 ms typical |
| Command Queuing | Native Command Queuing (NCQ) |
| Drive Monitoring | SMART support |
| Recording Technology | Perpendicular magnetic recording |
| Bytes per Sector | 512 |
| Power Supply Requirements | +5V and +12V |
| Operating Temperature | 5°C to 60°C |
| Non-Operating Temperature | -40°C to 70°C |
| Maximum Dimensions (H × W × D) | 26.1 × 101.6 × 147.0 mm |
| Self-Encrypting Drive | No; this is the standard ST33000650NS model |
Frequently Asked Questions
1. Is the Seagate ST33000650NS a SATA or SAS hard drive?
The ST33000650NS is a SATA hard drive with a maximum interface transfer rate of 6Gb/s. It is different from the SAS variant ST33000650SS, despite the similar model number.
2. Can this drive provide the full 3TB capacity in an older server?
Not necessarily. The server, storage controller, firmware, and operating system must support drives larger than 2TB. Verify the platform's specifications before installation.
3. Is this model a self-encrypting drive?
No. The ST33000650NS is the standard model without the self-encrypting drive feature. Seagate identifies separate models in this family for self-encrypting and FIPS-related configurations.
4. Can the drive be used in a RAID array?
It may be used in a compatible SATA RAID configuration if the controller supports this drive and its full capacity. Check the controller manufacturer's compatibility documentation before deployment.
5. Can this drive connect to a SATA 3Gb/s controller?
The drive supports SATA interface compatibility across supported link speeds, so a compatible SATA 3Gb/s controller may negotiate a lower connection speed. Actual performance will be limited by the controller and the drive's sustained transfer rate.
6. Does the drive include SATA cables or mounting accessories?
Included accessories depend on the specific package. Confirm the supplied contents with the seller if a SATA data cable, power adapter, or mounting hardware is required.