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Specifies the regulatory model number for all features and configurations.
Lists key documents and standards relevant to SAS interface and commands.
Details the core functionalities and characteristics of Exos X18 drives.
Outlines key performance metrics like transfer rates and latency.
Covers warranty, AFR, MTBF, and self-monitoring technologies.
Describes the magnetic media composition and protective layers.
Lists capacities for different sector sizes and PI configurations.
Explains how to adjust drive capacity using Mode Select command.
Lists optional features available at manufacturing.
Provides detailed physical and technical specs for drive components.
Details time taken for format commands with and without verify.
Explains the T10 Fast Format feature for sector size changes.
Covers sector interleave, data rates, and latency.
Describes the time taken for drive spin-up and readiness.
Explains cache and prefetch algorithms for system performance.
Details how the drive buffer is used for data caching and retrieval.
Describes how write data is managed in the drive buffer.
Explains how the drive reads data ahead of requests.
Defines various error rate specifications like seek, read, and interface errors.
Explains errors detected and corrected by the drive.
Defines failures to recover data from the media.
Describes failures in positioning drive heads to the correct track.
Covers errors in data transmission over the interface.
Discusses factors affecting reliability and service procedures.
Provides statistical data on drive failure rates and lifespan.
Details procedures and considerations for adding/removing drives while powered.
Explains Self-Monitoring Analysis and Reporting Technology for predictive failure.
Describes the drive's temperature monitoring and warning system.
Explains the built-in diagnostic tests for drive fault detection.
Defines the conditions that constitute a failure during DST.
Provides information to implement the DST function on the drive.
Details power saving features and modes for energy efficiency.
Explains how to track PowerChoice status and entry methods.
Describes how to define active power levels for the drive.
Specifies AC power needs, which are none for this drive.
Explains the AES-256 bit encryption engine and its operation.
Details security providers (Admin SP, Locking SP) and access control.
Covers management of firmware downloads via Admin SP.
Explains control of media access and cryptographic erase.
Describes initial factory password and its use for security setup.
Details the drive's hardware RNG for key generation and system use.
Explains how to lock data bands to prevent unauthorized access.
Explains how drive defects are identified and managed internally.
Details the drive's methods for recovering from read/write errors.
Refers to SAS interface error reporting and diagnostic results.
Describes automatic reallocation of unreadable sectors on write commands.
Explains how idle time is used to verify written data integrity.
Introduces standardized system-level data protection.
Describes the four types of Protection Information supported.
Explains how to format and query PI type on a drive.
Details how to identify drives supporting PI and its types.
Discusses acceptable mounting orientations for the drive.
Provides guidance on ensuring adequate cooling for drive operation.
Details screw types, torque, and surface stiffness for mounting.
Explains the importance of proper grounding for signal integrity.
Lists features specific to the Serial Attached SCSI interface.
Lists supported task management functions like abort and reset.
Details response codes for task management operations.
Explains the drive's two independent SAS ports and their capabilities.
Lists all SCSI commands supported by the Exos X18 drives.
Provides details on the data returned by the Inquiry command.
Explains how the drive reports operating parameters via Mode Sense.
Covers various operating features and conditions for the drive.
Describes the physical connector and location for the SAS interface.
Details physical aspects of the drive's interface connector.
Information on mating parts for SAS connectors.
Explains the electrical connections for power, interface, and LED.
Provides a pin-out and function description for the SAS connector.
Illustrates typical SAS differential transmitter and receiver pair.
Details power supply requirements through the SAS connector.
Describes the drive's input and output signal characteristics.
Describes the signal for the drive's Ready LED status.
Covers SAS differential signal compliance with standard requirements.
Details compliance with the latest SAS-3 specification.
Provides contact information for SAS electrical details and manual references.
General| Model | ST18000NM004J |
|---|---|
| Capacity | 18TB |
| Form Factor | 3.5 inch |
| Interface | SATA 6Gb/s |
| RPM | 7200 |
| Cache | 256MB |
| MTBF | 2, 500, 000 hours |
| Warranty | 5 years |
| Workload Rate Limit | 550 TB/year |
| Dimensions | 26.11mm x 101.85mm x 147.0mm |
