NetApp 8TB 12Gb/s SAS 7.2K RPM LFF 3.5" Hard Drive

X318A-R6 | SP-318A-R6 | HUH721008AL5204 | 0F27386 | Enterprise Nearline SAS HDD

The NetApp X318A-R6 / SP-318A-R6 is a high-capacity enterprise-class 8TB Nearline SAS (NL-SAS) hard drive designed for demanding data center, storage array, backup, archive, and cloud environments. Built on the reliable HGST Ultrastar He10 platform, this drive utilizes Helium-Sealed (HelioSeal) technology, delivering higher storage density, lower power consumption, improved cooling efficiency, and exceptional reliability for 24x7 enterprise operations.

Engineered for NetApp storage systems, this hard drive ships with NetApp-certified firmware and is optimized for seamless integration into supported NetApp FAS arrays and disk shelves.

Key Features

• 8TB Enterprise Storage Capacity
• 12Gb/s SAS Interface
• 7,200 RPM Spindle Speed
• 3.5-inch Large Form Factor (LFF)
• HGST Ultrastar He10 Platform
• Helium-Filled HelioSeal Design
• 256MB Cache Buffer
• Nearline SAS (NL-SAS) Technology
• 512e Advanced Format Sector Size
• Hot-Swap Ready
• Enterprise 24x7 Duty Cycle
• 2.5 Million Hour MTBF
• NetApp Certified Firmware

Product Identifiers

Manufacturer

• NetApp
• Drive Mechanism Manufactured by HGST / Western Digital

Part Numbers

• NetApp Part Number: X318A-R6
• NetApp Spare Part Number: SP-318A-R6
• NetApp Base Assembly Number: 108-00455
• HGST Model Number: HUH721008AL5204
• HGST Part Number: 0F27386

Storage Specifications

Capacity

• 8TB (8,000GB)

Form Factor

• 3.5-inch Large Form Factor (LFF)

Drive Type

• Enterprise Nearline SAS (NL-SAS) Hard Disk Drive

Recording Technology

• Perpendicular Magnetic Recording (PMR)

Helium Technology

• HelioSeal Helium-Filled Platform

Performance Specifications

Interface

• Serial Attached SCSI (SAS)
• SAS-3 Generation Interface

Interface Speed

• 12Gb/s SAS
• Backward Compatible with 6Gb/s SAS Infrastructure

Rotational Speed

• 7,200 RPM

Cache Memory

• 256MB Buffer

Sustained Data Transfer Rate

• Up to 249 MB/s

Average Seek Time

• 8.0 ms Read
• 8.6 ms Write

Sector Format

• 512e (512-byte Emulation)

Enterprise Reliability

Built for mission-critical storage environments, the Ultrastar He10 platform delivers high reliability, performance consistency, and long service life.

Reliability Features

• 2.5 Million Hour MTBF
• Enterprise-Class Workload Rating
• Designed for 24x7 Continuous Operation
• Rotational Vibration Protection
• HelioSeal Low-Friction Technology
• Reduced Power Consumption
• Improved Thermal Efficiency
• Enhanced Data Integrity

Hot-Swap Support

This drive supports hot-swappable operation when installed in compatible NetApp drive carriers and storage shelves.

Benefits

• Drive Replacement Without System Shutdown
• Reduced Maintenance Windows
• Increased Storage Availability
• Enterprise Storage Redundancy Support

NetApp Compatibility

The X318A-R6 comes preloaded with NetApp firmware and is designed for deployment in compatible NetApp storage environments.

Supported NetApp Disk Shelves

• NetApp DS212C
• NetApp DS4246

Compatible NetApp FAS Systems

• FAS2520
• FAS2554
• FAS2620
• FAS2720
• FAS8020
• FAS8040
• FAS8060
• FAS8080
• FAS8200
• FAS8300
• FAS8700
• FAS9000

Note: Compatibility may vary depending on ONTAP version, shelf configuration, and controller firmware.

Physical Specifications

Dimensions

Height: 1.03 in (26.1 mm)

Width: 4.00 in (101.6 mm)

Depth: 5.79 in (147.0 mm)

Weight

• Approximately 1.46 lbs (660 g)

Technical Specifications

Manufacturer: NetApp

Part Number: X318A-R6

Spare Part Number: SP-318A-R6

HGST Model: HUH721008AL5204

Alternate Part Number: 0F27386

Capacity: 8TB

Interface: 12Gb/s SAS

Drive Type: Nearline SAS (NL-SAS)

Form Factor: 3.5-inch LFF

Rotational Speed: 7,200 RPM

Cache: 256MB

Sector Format: 512e

Recording Method: PMR

Technology: HelioSeal Helium Platform

Hot Swap: Yes

MTBF: 2.5 Million Hours

Enterprise Rated: Yes

Firmware: NetApp OEM Firmware

Ideal For

• NetApp Storage Arrays
• Enterprise Data Centers
• Backup and Recovery
• Archive Storage
• Cloud Infrastructure
• Virtualization Environments
• File & Block Storage
• High-Capacity Nearline Storage
• Business Continuity Solutions
• Large-Scale Data Repositories
• Tiered Storage Architectures
• 24x7 Enterprise Workloads