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HD-D and HD-H Series
User Manual
www.buffaloamericas.com
35020956-02
2016.05

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Table of Contents
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Summarization of Contents

Chapter 1 Getting Started
Features of the Unit
Describes the capabilities and features of the unit.
Important Precautions
Lists crucial safety and operational warnings to prevent data loss.
HD-D Series Diagram
Visual representation of the HD-D Series front panel components.
HD-H Series Diagram
Visual representation of the HD-H Series front panel components.
Chapter 2 Configuration
Connecting the Unit to a Computer
Instructions on how to connect the unit to a computer.
Connecting by Thunderbolt
Steps to connect the unit using Thunderbolt 2.
Connecting by USB 3.0
Steps to connect the unit using USB 3.0.
Connecting by eSATA
Steps to connect the unit using eSATA.
Turning the Unit Off
Procedures for safely turning off and disconnecting the unit.
Chapter 3 Changing RAID Mode
What Is RAID?
Explains the concept and benefits of RAID.
RAID 6 Configuration
Details of RAID 6 configuration and data protection.
RAID 5 Configuration
Details of RAID 5 configuration and data protection.
RAID 0 Configuration
Details of RAID 0 configuration and data loss.
Notes on RAID Arrays
Important notes regarding RAID array creation and data loss.
Working with RAID Arrays
Procedure for building a RAID array.
Chapter 4 Advanced Settings
Changing Unit Settings
General procedure for changing unit settings via the LCD panel.
Settings Menu Overview
Overview of the configurable settings and their navigation.
Disk Size Configuration
Configures the drive capacity to use.
RAID Mode Configuration
Configures the RAID mode of the unit.
Drive Mode and Sector Size
Configures drive mode and sector size.
LUN Configuration
Configures Logical Unit Number size and mode.
Parity Stripe and Host Mode
Configures parity stripe size and host mode for ports.
USB 3.0 Host and Recover Wait
Manages USB 3.0 port and recovery priority.
Write Mode and Verify Mode
Configures write operations and data verification.
Read Ahead and Firmware Information
Configures read ahead and displays firmware/ID details.
Network and Interface Settings
Configures IP address, subnet mask, eSATA speed, and NCQ.
Port, Speed, and Cache Settings
Manages port usage, disk speed, fan, cache, and write retry.
Power, Buffer, and Sequential Settings
Configures power, buffer, retry, sequential access, and cache flags.
Drive and System Patrol Settings
Configures drive detection, wait times, cache checks, and patrols.
Confirming Settings
Procedures to display and verify current unit settings.
Chapter 5 Maintenance
Backup and Restore Procedures
Discusses data backup, restore, and drive scanning.
Drive Optimization (Defragmentation)
Explains defragmentation for performance.
Chapter 6 Replacing Hard Drives
Verifying Hard Drive Failure
Indicators of a hard drive failure.
Hard Drive Replacement Notes
Important notes before replacing hard drives.
HD-D Series: One Drive Down
Steps for replacing one failed drive in HD-D series.
HD-D Series: Two Drive Down
Steps for replacing two failed drives in HD-D series.
HD-D Series: System Down
Steps for system failure in HD-D series (RAID 0/6).
HD-H Series: One Drive Down
Steps for replacing one failed drive in HD-H series.
HD-H Series: Two Drive Down
Steps for replacing two failed drives in HD-H series.
HD-H Series: System Down
Steps for system failure in HD-H series (RAID 0/6).
Chapter 7 Format (Initialization)
What Is Formatting?
Explains the process of creating a file system.
Formatting Notes and Warnings
Important warnings and notes before formatting.
Formatting with NTFS (Windows)
Steps to format the drive using NTFS on Windows.
Formatting with HFS Plus (Mac)
Steps to format the drive using HFS Plus on Mac.
Chapter 8 Troubleshooting
Checking the LCD Panel for Errors
How to interpret LCD panel error messages and take action.
Chapter 9 Appendix
Product Specifications
Lists technical specifications for HD-D and HD-H series.

Table of Contents