This document is a product manual for Seagate Exos 7E8 SATA hard drives, providing detailed information on their function, technical specifications, usage, and maintenance. The Exos 7E8 series includes various models with different capacities and encryption features, designed for enterprise applications.
Function Description
The Seagate Exos 7E8 SATA hard drives are high-capacity, high-performance storage devices primarily designed for enterprise environments. They offer reliable data storage with options for standard 4KN (4 Kilobyte Native) or 512E (512-byte Emulation) sector sizes, as well as Self-Encrypting Drive (SED) and FIPS (Federal Information Processing Standard) compliant SED models for enhanced data security. These drives are suitable for applications requiring high capacity, consistent performance, and robust data protection.
Key features contributing to their function include:
- High Capacity: Available in 8TB and 6TB configurations, providing ample storage for demanding enterprise workloads.
- Performance: Features a 7200 RPM spindle speed, 256 MB data buffer, and Native Command Queuing (NCQ) for improved performance and increased areal density.
- Data Security: SED models offer hardware-based encryption (AES-256 bit) to protect data at rest, making it unreadable without the correct encryption key. FIPS 140-2 compliant SED models meet stringent government security standards.
- Reliability: Designed for 24x7 operation with an Annualized Failure Rate (AFR) of 0.44% and a Mean Time Between Failures (MTBF) of 2,000,000 hours, ensuring long-term operational stability.
- PowerChoice™ Technology: Enables users to optimize power consumption based on workload, offering different power states for energy efficiency.
- Error Correction: Utilizes advanced on-the-fly error-correction algorithms to maintain data integrity.
- S.M.A.R.T. Support: Provides monitoring and reporting capabilities for drive health and potential issues.
- Vibration Tolerance: Designed to operate reliably in multi-drive environments, with specifications for non-operating and operating vibration and shock.
Important Technical Specifications
The Exos 7E8 SATA drives come in 8TB and 6TB capacities, with specific model numbers indicating their configuration:
- Standard 4KN models: ST8000NM0045 (8TB), ST6000NM0055 (6TB)
- Self-Encrypting 4KN (SED) models: ST8000NM0115 (8TB), ST6000NM0165 (6TB)
- SED FIPS 140-2 4KN models: ST8000NM0145 (8TB), ST6000NM0145 (6TB)
- Standard 512E models: ST8000NM0055 (8TB), ST6000NM0065 (6TB)
- Self-Encrypting 512E (SED) models: ST8000NM0105 (8TB), ST6000NM0155 (6TB)
- SED FIPS 140-2 512E models: ST8000NM0155 (8TB), ST6000NM0155 (6TB)
- Spindle Speed: 7200 RPM
- Data Buffer: 256 MB
- Internal Data Transfer Rate: Up to 2546 Mb/s
- Maximum Sustained Data Transfer Rate OD: 237 (249 MB/s)
- I/O Data Transfer Rate (MB/s max): 600 (Ultra DMA mode 5)
- Average Latency: 4.16ms
- Interface: Serial ATA (SATA) at 6Gb/s
Reliability:
- Nonrecoverable Read Errors: 1 sector per 10^15 bits read
- Annualized Failure Rate (AFR): 0.44%
- MTBF: 2,000,000 hours
- Load/Unload Cycles: 600,000
Environmental Limits:
- Operating Temperature: 5°C to 60°C (case temperature)
- Non-operating Temperature: -40°C to 70°C
- Operating Humidity: 5% to 95% non-condensing relative humidity
- Non-operating Humidity: 5% to 95% non-condensing relative humidity
- Operating Shock (max at 2 ms): 70 Gs (Read/Write)
- Non-operating Shock (max at 2 ms): 250 Gs
- Operating Vibration: 5-22 Hz (0.25 Gs), 22-350 Hz (0.50 Gs), 350-500 Hz (0.25 Gs)
- Non-operating Vibration: 10-500 Hz (5.0 Grms ref)
Power Specifications (Typical DC):
- +5V Regulation: ±5%
- +12V Regulation: ±10%
- Idle Power: 7.57W (8TB), 6.42W (6TB)
- Maximum Start Current: 2.03A (+5V), 2.50A (+12V)
Physical Dimensions:
- Height: 26.11 mm (1.028 in)
- Width: 101.85 mm (4.010 in)
- Depth: 146.99 mm (5.787 in)
- Weight: 1.72 lb (8TB), 780 g (6TB)
Usage Features
The Exos 7E8 drives are designed for straightforward integration and use in enterprise systems.
- SATA Interface: Provides several advantages over traditional (parallel) ATA interface, including easy installation, true plug-and-play connectivity, and thinner, more flexible cabling.
- Drive Configuration: The manual details procedures for handling and static-discharge precautions, configuring the drive, and mounting it. It emphasizes that the drive should be handled by its edges or frame only and that proper grounding is essential during installation.
- Hot-Plug Compatibility: These drives support hot-plugging, allowing them to be added or removed from a system without powering down the entire system, provided the host adapter supports this feature.
- Self-Encrypting Drives (SEDs): For SED models, data encryption is automatic and transparent to the user. Access to encrypted data is controlled by an Admin SP (Security Provider) and a Locking SP, which manage passwords and encryption keys. The manual outlines procedures for setting and managing these passwords, as well as for performing a "Sanitize Device" operation to cryptographically erase data.
- PowerChoice™: Users can leverage PowerChoice™ technology to manage power consumption by setting different power conditions. This allows for optimization between performance and energy efficiency.
- S.M.A.R.T. Commands: The drives support S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) commands, enabling host systems to monitor drive health and predict potential failures.
Maintenance Features
Maintenance for the Exos 7E8 drives primarily involves monitoring drive health and ensuring proper environmental conditions.
- S.M.A.R.T. Monitoring: The S.M.A.R.T. system provides continuous monitoring of various drive attributes, such as temperature, read error rates, and seek error rates. This allows for early detection of potential issues, enabling proactive maintenance or drive replacement before data loss occurs. Seagate provides diagnostic software tools (SeaTools) that can be used to interpret S.M.A.R.T. data and perform drive self-tests.
- Firmware Updates: Authenticated firmware download features are supported, allowing for secure updates to the drive's firmware, which can improve performance, address bugs, or add new features.
- Data Sanitization: For SED models, the "Sanitize Device - Crypto Scramble EXT" command provides a fast and secure method to cryptographically erase all user data on the drive. This is crucial for data security when repurposing or decommissioning drives, as it renders previous data unrecoverable.
- Environmental Control: Maintaining the specified operating temperature and humidity ranges is critical for the longevity and reliability of the drives. The manual provides detailed environmental limits to guide proper installation and operation within data centers or other enterprise environments.
- Warranty and Support: Seagate offers comprehensive support services, including online resources, warranty support, and data recovery services. The manual provides links to these resources, emphasizing the importance of registering products and understanding warranty terms.
- Shipping and Storage: Guidelines are provided for shipping and storage, recommending the use of Seagate-approved packaging to prevent damage during transit and specifying environmental conditions for optimal storage.
In summary, the Seagate Exos 7E8 SATA Product Manual provides comprehensive information for deploying, managing, and maintaining these enterprise-grade hard drives, highlighting their robust features for performance, capacity, and data security.
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