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Buffalo TeraStation 3420DN - User Manual

Buffalo TeraStation 3420DN
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Network Attached Storage
TeraStation 3010, 3020
User Manual
Please make sure to read this manual before using and follow the procedures. If you have any inquiries about
the product, contact the number on the warranty statement or the packing box. Do not discard the included
documents, the warranty statement, or the packing box.
Americas: www.buffaloamericas.com
Europe: www.buffalo-technology.com
Asia Pacific: www.buffalo-asia.com
35021138-24
June 2020
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Table of Contents

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Summary

Notice

Regulatory Compliance Information

Provides information regarding FCC rules and European compliance for the device.

Notice

For Customers in Taiwan

Compliance information specific to customers in Taiwan.

Warning Symbols and Graphical Icons on the Product

Explains the meaning of warning symbols and graphical icons used on the product.

Safety Precautions

Basic safety instructions to be followed before using the device.

Chapter 1 Getting Started

Diagrams

Visual representation of the TeraStation unit components and their labels.

TS3010 Series TeraStations

Diagrams specific to the TS3010 series TeraStation models.

TS3020 Series TeraStations

Diagrams specific to the TS3020 series TeraStation models.

Turning the TeraStation On and Off

Step-by-step instructions on how to power the TeraStation on and off.

Re-Inserting Drives

Procedure for re-inserting internal drives, often for troubleshooting errors.

Creating a USB Initialization Drive

Guide on creating a USB drive for initializing settings or system recovery.

Chapter 2 Configuration

Configuring Settings via Setup Wizard

How to configure initial TeraStation settings using the setup wizard.

Opening Setup Wizard

Instructions on how to launch the setup wizard again after initial setup.

Opening Settings

Steps to access the TeraStation settings interface via NAS Navigator2.

Checking the Device Information from Dashboard

How to view essential device information from the TeraStation's dashboard.

Chapter 3 File Sharing

Configuring Shared Folders

Steps to set up and manage shared folders on the TeraStation.

Adding a Shared Folder

Detailed instructions for creating a new shared folder on the TeraStation.

Recycle Bin

Information on configuring and managing the recycle bin feature for shared folders.

Read-Only Shares

How to set shared folders or USB drives to read-only access.

Chapter 3 File Sharing

Hidden Shares

Steps to hide shared folders from network browsing, restricting access.

Configuring Users

Manages user accounts for accessing the TeraStation's shared resources.

Adding a User

Procedure to create new user accounts for accessing shared folders.

Importing User Information

How to import user data from a CSV file for bulk user creation.

Adding a Group

Instructions for creating user groups to manage permissions more efficiently.

Chapter 3 File Sharing

Configuring Access Restrictions for Shared Folders

How to set access permissions for specific shared folders for users and groups.

Local Users and Groups

Managing local user and group accounts for access control.

Active Directory

Integrating the TeraStation with an Active Directory environment for centralized management.

Configuring Access Restrictions for Subfolders

Setting access permissions for individual subfolders within shared folders.

Chapter 3 File Sharing

Enabling Subfolders’ Access Restrictions

Steps to enable access restrictions for subfolders within shared folders.

Restoring Owner and Permission Settings

How to restore folder ownership and permission settings to their previous state.

If a Shared Folder Cannot Be Accessed

Troubleshooting steps when shared folders are inaccessible due to security reasons.

Chapter 4 Storage Management

RAID Modes

Explains the different RAID modes supported by the TeraStation and their characteristics.

Working with RAID Arrays

General procedures for managing RAID arrays, including changing settings.

Using JBOD

How to use drives individually in JBOD mode instead of a RAID array.

Changing RAID Mode

Steps to change the RAID mode of existing arrays, often requiring data backup.

Chapter 4 Storage Management

Shutting Down the TeraStation Automatically If an Error Occurs

Configuring automatic shutdown when a drive error occurs in a redundant RAID array.

Configuring Actions for If a Drive Used for the RAID Array Has Not Been Detected

Setting actions for when a drive in a RAID array is not detected during startup.

Configuring a Hot Spare

How to set up a spare drive that automatically replaces a failed drive in a RAID array.

Expanding RAID Capacity Without Deleting Data

Procedures for increasing RAID array capacity by adding drives without data loss.

Chapter 4 Storage Management

Adding a Drive

Steps to add a new drive to the TeraStation, typically for expanding storage.

Drives Are Currently in JBOD

Instructions for changing drives from JBOD to a RAID 1 array.

Drives Are Currently in RAID 1 or RAID 5

How to add drives to existing RAID 1 or RAID 5 arrays.

RAID Scanning

Performing scans on RAID arrays to check for and repair bad sectors.

Chapter 4 Storage Management

Configuring Low Drive Space Alerts

Setting up notifications for when drive space is running low.

Adding an External Drive

Connecting and using external USB drives with the TeraStation.

Compatibility

Lists supported file systems for external USB drives.

Dismounting Drives

Procedures for safely dismounting internal or external drives before removal.

Chapter 4 Storage Management

Dismounting Using the Function Button

How to dismount drives using the physical function button on the TeraStation.

Dismounting from Settings

Steps to dismount drives through the TeraStation's settings interface.

Checking Drives

Running drive checks to test data integrity and automatically fix errors.

S.M.A.R.T.

Understanding and checking S.M.A.R.T. information for internal drive reliability.

Chapter 4 Storage Management

Displaying S.M.A.R.T. Information

How to view S.M.A.R.T. data for internal drives.

Checking the Drive Condition

Interpreting drive attributes and identifying potential issues based on threshold values.

Formatting Drives

Procedures for formatting internal or external drives.

Encrypting Drives

Encrypting internal drives and arrays using AES for enhanced security.

Chapter 4 Storage Management

Erasing Data on the TeraStation Completely

Securely erasing all data and settings from the TeraStation to factory defaults.

Quotas

Setting storage quotas for users and groups to manage disk space usage.

Quotas for Users

How to limit the shared folder space available for individual user accounts.

Quotas for Groups

How to limit the shared folder space available for user groups.

Chapter 4 Storage Management

Size Limits

Information on creating volumes with maximum size limits when LVM is enabled.

Using the TeraStation as an iSCSI Device

Configuring the TeraStation to function as an iSCSI target for block-level storage access.

Introduction

Overview of iSCSI protocol and its use with the TeraStation.

Differences Between NAS and iSCSI

Comparison of NAS file sharing versus iSCSI block-level storage access.

Chapter 4 Storage Management

Network Configuration

Recommendations for network setup when using iSCSI for optimal performance.

Connection Tool

Information about the Microsoft iSCSI Software Initiator.

Creating an iSCSI Volume

Step-by-step guide to creating iSCSI volumes on the TeraStation.

Connecting Volumes

How to connect to iSCSI volumes from a client computer.

Chapter 4 Storage Management

Disconnecting Volumes

Procedures for disconnecting from iSCSI volumes.

Using with Multiple Computers

Considerations for accessing a single iSCSI volume from multiple computers.

Checking Whether iSCSI Volume Is Connected

Verifying the connection status of iSCSI volumes.

Configuring Access Restrictions

Setting up CHAP authentication for secure iSCSI access.

Chapter 4 Storage Management

Configuring Access Restrictions for the Entire TeraStation

Enabling access control for all iSCSI volumes on the TeraStation.

Connecting Volumes on the Access-Restricted TeraStation

How to connect to iSCSI volumes when access restrictions are enabled.

Configuring Access Restrictions for Individual Volumes

Setting up access controls for specific iSCSI volumes.

Connecting to Individual Volumes That Are Access-Restricted

How to connect to individual iSCSI volumes with access restrictions.

Chapter 4 Storage Management

Expanding Volume Sizes

How to increase the size of existing iSCSI volumes.

Deleting Volumes

Procedures for deleting iSCSI volumes.

Advanced Settings

Configuring advanced parameters for iSCSI volumes.

Chapter 5 Backup

Backing Up Data on the TeraStation

Overview of backing up data from the TeraStation to various destinations.

Backup Modes

Explains the different backup modes available (Full, Overwrite Incremental/Differential).

Full Backup

Details on performing a full backup of all files from the source to the destination.

Chapter 5 Backup

Overwrite (Incremental)

How incremental backups work, backing up only changed files.

Overwrite (Differential)

How differential backups work, backing up changes since the last full backup.

Management Backup

Storing management information and changed files for version tracking.

Preparing a Backup Destination

Steps to configure a shared folder or USB drive as a backup destination.

Chapter 5 Backup

Configuring a Backup Job

Setting up scheduled or manual backup jobs.

If Backing Up from rsync-Compatible Devices to the TeraStation

How to enable rsync access for backing up data from compatible devices to the TeraStation.

Restoring Backup Data

Procedures for restoring data from backups, varying by backup mode.

Backup Logs for If Backup Fails

Information on troubleshooting backup failures using error codes and logs.

Chapter 5 Backup

Replication

Setting up replication to copy data to another TeraStation for redundancy.

Preparing a Replication Destination

Configuring a shared folder or USB drive as a replication destination.

Configuring a Replication Job

Setting up replication jobs to copy data between TeraStations.

Synchronizing Between Source and Destination TeraStations Periodically

Automating data synchronization between TeraStations on a schedule.

Chapter 5 Backup

Failover

Configuring a secondary TeraStation to take over if the primary fails.

Before Configuring Failover

Prerequisites and network considerations before setting up failover.

Usage Restrictions

Limitations and conflicts when failover is enabled with other features.

Configuring Failover

Step-by-step guide to setting up the failover configuration between two TeraStations.

Chapter 5 Backup

Switching to the Backup TeraStation Manually

How to manually switch operations to the backup TeraStation.

Reconfiguring After Failover Occurs

Steps to reconfigure failover settings after a failover event.

Synchronizing Between Main and Backup TeraStations Periodically

Setting up periodic synchronization between main and backup TeraStations.

Backing Up Your Mac with Time Machine

Configuring the TeraStation to work with macOS Time Machine backups.

Chapter 6 Cloud Services and Remote Access

Synchronizing with Amazon S3

Setting up synchronization with Amazon S3 cloud storage.

Preparing for Amazon S3

Initial steps to configure the TeraStation for Amazon S3 integration.

Uploading Files to Amazon S3

How to upload files to Amazon S3 buckets using backup jobs.

Synchronizing with Dropbox

Setting up synchronization with Dropbox cloud storage.

Chapter 6 Cloud Services and Remote Access

Configuring a New Job

Steps to create a new synchronization job for cloud services like Dropbox.

Changing Job Settings

Modifying the settings of existing synchronization jobs.

Corrective Actions for in Case of Error

Troubleshooting common error codes encountered during cloud service synchronization.

WebAccess

Utility for accessing TeraStation files remotely via the internet.

Chapter 6 Cloud Services and Remote Access

FTP

Enabling and configuring FTP access for remote file transfer.

Using Microsoft Azure for Data Preservation

Synchronizing data with Microsoft Azure cloud storage.

Creating a New Backup Job

Setting up a new backup job for Microsoft Azure.

Creating a New Restore Job

Setting up a new restore job from Microsoft Azure.

Chapter 6 Cloud Services and Remote Access

Changing Job Settings

Modifying the settings of existing Microsoft Azure synchronization jobs.

Synchronizing with Microsoft OneDrive

Setting up synchronization with Microsoft OneDrive cloud storage.

Configuring a New Job

Steps to create a new synchronization job for OneDrive.

Chapter 6 Cloud Services and Remote Access

Changing Job Settings

Modifying the settings of existing OneDrive synchronization jobs.

Corrective Actions for in Case of Error

Troubleshooting common error codes encountered during OneDrive synchronization.

Chapter 6 Cloud Services and Remote Access

WebAccess

Utility for accessing TeraStation files remotely via the internet.

FTP

Enabling and configuring FTP access for remote file transfer.

Chapter 7 Advanced Features

Antivirus Software

Protection against viruses, malware, and spyware using Trend Micro NAS Security.

Activating Virus Scanning

How to enable and configure virus scanning on the TeraStation.

Configuring Security Settings

Adjusting antivirus settings like pattern updates and scan schedules.

Licenses

Information about licensing for the antivirus software.

Chapter 7 Advanced Features

Connecting Through a Proxy Server

Configuring proxy server settings for internet access, required for updates.

Updating Antivirus Pattern Files

Setting up automatic updates for antivirus pattern files.

Configuring Folders as Virus Scanning Targets

Excluding specific shared folders from virus scans.

Configuring Virus Scanning

Setting up different types of virus scans (real-time, scheduled, manual).

Chapter 7 Advanced Features

Checking the Log

How to view virus scan logs.

Opening the Online Help

Accessing the integrated online help for the antivirus software.

Email Notification

Configuring email alerts for events like errors or status changes.

Sleep Mode

Scheduling the TeraStation to enter sleep (standby) mode to save energy.

Chapter 7 Advanced Features

Wake-on-LAN

Enabling remote power-on functionality for the TeraStation.

UPS (Uninterruptible Power Supply)

Connecting a UPS for automatic shutdown during power outages.

Port Trunking

Configuring multiple LAN ports for increased bandwidth and redundancy.

Offline Files for Windows

Enabling offline access to TeraStation files for Windows clients.

Chapter 7 Advanced Features

Accessing from an NFS Client

Configuring the TeraStation to allow access from NFS clients.

Encrypting Data Transmission

Securing data transfer using SSL/TLS encryption.

Updating SSL Key Files

How to update server certificates and private keys for SSL.

SNMP

Configuring SNMP for network management and monitoring.

Chapter 7 Advanced Features

Saving and Applying Settings

Backing up and restoring TeraStation settings using a USB drive.

Saving Settings

Steps to save the current configuration to a USB drive.

Applying Settings

How to transfer saved settings from a USB drive to another TeraStation.

Transferring Another TeraStation’s Settings

Moving configurations from one TeraStation to another.

Chapter 7 Advanced Features

Creating a Config File (.nas_config)

Creating a configuration file for transferring settings, especially for TS-X series.

Restoring Factory Defaults

Resetting the TeraStation to its original factory default settings.

Initializing from Settings

Performing a factory reset using the settings interface.

Initializing Using the USB Initialization Drive

Resetting the TeraStation to factory defaults using a prepared USB drive.

Chapter 7 Advanced Features

Creating a USB Initialization Drive

Step-by-step guide to creating a USB drive for initializing settings.

Starting Initialization

Procedures to initialize the TeraStation using a created USB drive.

Resetting the Administrator Password

How to reset the admin password if it's forgotten or settings are inaccessible.

Logs

Managing and viewing system logs.

Chapter 7 Advanced Features

Displaying TeraStation’s Logs

Viewing system and file access logs from the TeraStation.

Transferring Logs to the Syslog Server

Configuring the TeraStation to send logs to an external syslog server.

Creating a Shortcut to the Logs in the Shared Folder

Creating a shortcut to log files within a shared folder for easier access.

Changing Archive Rules for File Access Logs

Configuring how long and how many file access logs are stored.

Chapter 7 Advanced Features

Updating the Firmware

Procedures for updating the TeraStation's firmware.

Updating Manually

How to manually install firmware updates.

Updating Automatically

Configuring the TeraStation to update firmware automatically.

Configuring Update Notification

Setting up notifications for new firmware versions.

Chapter 7 Advanced Features

Name, Date, Time, and Language

Configuring the TeraStation's hostname, date, time, and language settings.

Beep Alerts

Configuring audible alerts for specific errors or events.

LEDs

Adjusting the brightness of the TeraStation's LEDs.

Proxy Server

Configuring proxy server settings for internet connectivity.

Chapter 7 Advanced Features

Jumbo Frames

Enabling Jumbo Frames to potentially improve network performance.

Changing the IP Address

How to manually change the TeraStation's IP address.

Mapping IP Address and Hostname

Configuring hostname (FQDN) mapping for network communication.

Chapter 8 Drive Replacement

LEDs

Explains the status and error LEDs on the TeraStation drives.

Drive Replacement Procedure

General steps for replacing a TeraStation drive.

Using a Redundant RAID Mode or JBOD and TeraStation Is On

Procedure for replacing a failed drive in a redundant RAID or JBOD array while the unit is on.

Using a Redundant RAID Mode or JBOD and TeraStation Is Off

Procedure for replacing a failed drive in a redundant RAID or JBOD array while the unit is off.

Chapter 8 Drive Replacement

Using RAID 0

Procedure for replacing a drive in a RAID 0 array.

Using a Hot Spare

Configuring a new drive as a hot spare after replacement.

Replacing a Non-Malfunctioning Drive

Instructions for replacing a drive that is not malfunctioning.

Chapter 8 Drive Replacement

Operating in RAID 0 Mode

Behavior of a RAID 0 array after replacing a drive.

Operating in JBOD

Behavior of a JBOD setup after replacing a drive.

Operating in a Redundant RAID Mode

Behavior of redundant RAID modes after replacing a drive.

Chapter 9 Utilities

NAS Navigator2

Utility for managing Buffalo NAS devices, including IP address and drive checks.

Windows

Instructions for downloading and installing NAS Navigator2 on Windows.

macOS

Instructions for downloading and installing NAS Navigator2 on macOS.

NovaBACKUP

Utility for backing up computer data using NovaBACKUP.

Chapter 10 Appendix

TeraStation Does Not Work Properly

Troubleshooting guide for common issues preventing the TeraStation from booting.

Power LED Keeps Blinking

Steps to recover from drive setup mode when the power LED blinks.

Booting the TeraStation in Emergency Mode

Procedures to recover the TeraStation from emergency mode.

Chapter 10 Appendix

Info and Error LEDs

Details event/error codes indicated by LEDs and their corrective actions.

Errors

Lists specific error codes (E10-E30) and their corrective actions.

Chapter 10 Appendix

Status

Lists status codes (I01-I72) and their corrective actions.

Default Settings

Lists the default administrator, password, shared folders, and network settings.

Chapter 10 Appendix

Specifications

Technical specifications of the TeraStation, including LAN, USB, and RAID modes.

Summary

Notice

Regulatory Compliance Information

Provides information regarding FCC rules and European compliance for the device.

Notice

For Customers in Taiwan

Compliance information specific to customers in Taiwan.

Warning Symbols and Graphical Icons on the Product

Explains the meaning of warning symbols and graphical icons used on the product.

Safety Precautions

Basic safety instructions to be followed before using the device.

Chapter 1 Getting Started

Diagrams

Visual representation of the TeraStation unit components and their labels.

TS3010 Series TeraStations

Diagrams specific to the TS3010 series TeraStation models.

TS3020 Series TeraStations

Diagrams specific to the TS3020 series TeraStation models.

Turning the TeraStation On and Off

Step-by-step instructions on how to power the TeraStation on and off.

Re-Inserting Drives

Procedure for re-inserting internal drives, often for troubleshooting errors.

Creating a USB Initialization Drive

Guide on creating a USB drive for initializing settings or system recovery.

Chapter 2 Configuration

Configuring Settings via Setup Wizard

How to configure initial TeraStation settings using the setup wizard.

Opening Setup Wizard

Instructions on how to launch the setup wizard again after initial setup.

Opening Settings

Steps to access the TeraStation settings interface via NAS Navigator2.

Checking the Device Information from Dashboard

How to view essential device information from the TeraStation's dashboard.

Chapter 3 File Sharing

Configuring Shared Folders

Steps to set up and manage shared folders on the TeraStation.

Adding a Shared Folder

Detailed instructions for creating a new shared folder on the TeraStation.

Recycle Bin

Information on configuring and managing the recycle bin feature for shared folders.

Read-Only Shares

How to set shared folders or USB drives to read-only access.

Chapter 3 File Sharing

Hidden Shares

Steps to hide shared folders from network browsing, restricting access.

Configuring Users

Manages user accounts for accessing the TeraStation's shared resources.

Adding a User

Procedure to create new user accounts for accessing shared folders.

Importing User Information

How to import user data from a CSV file for bulk user creation.

Adding a Group

Instructions for creating user groups to manage permissions more efficiently.

Chapter 3 File Sharing

Configuring Access Restrictions for Shared Folders

How to set access permissions for specific shared folders for users and groups.

Local Users and Groups

Managing local user and group accounts for access control.

Active Directory

Integrating the TeraStation with an Active Directory environment for centralized management.

Configuring Access Restrictions for Subfolders

Setting access permissions for individual subfolders within shared folders.

Chapter 3 File Sharing

Enabling Subfolders’ Access Restrictions

Steps to enable access restrictions for subfolders within shared folders.

Restoring Owner and Permission Settings

How to restore folder ownership and permission settings to their previous state.

If a Shared Folder Cannot Be Accessed

Troubleshooting steps when shared folders are inaccessible due to security reasons.

Chapter 4 Storage Management

RAID Modes

Explains the different RAID modes supported by the TeraStation and their characteristics.

Working with RAID Arrays

General procedures for managing RAID arrays, including changing settings.

Using JBOD

How to use drives individually in JBOD mode instead of a RAID array.

Changing RAID Mode

Steps to change the RAID mode of existing arrays, often requiring data backup.

Chapter 4 Storage Management

Shutting Down the TeraStation Automatically If an Error Occurs

Configuring automatic shutdown when a drive error occurs in a redundant RAID array.

Configuring Actions for If a Drive Used for the RAID Array Has Not Been Detected

Setting actions for when a drive in a RAID array is not detected during startup.

Configuring a Hot Spare

How to set up a spare drive that automatically replaces a failed drive in a RAID array.

Expanding RAID Capacity Without Deleting Data

Procedures for increasing RAID array capacity by adding drives without data loss.

Chapter 4 Storage Management

Adding a Drive

Steps to add a new drive to the TeraStation, typically for expanding storage.

Drives Are Currently in JBOD

Instructions for changing drives from JBOD to a RAID 1 array.

Drives Are Currently in RAID 1 or RAID 5

How to add drives to existing RAID 1 or RAID 5 arrays.

RAID Scanning

Performing scans on RAID arrays to check for and repair bad sectors.

Chapter 4 Storage Management

Configuring Low Drive Space Alerts

Setting up notifications for when drive space is running low.

Adding an External Drive

Connecting and using external USB drives with the TeraStation.

Compatibility

Lists supported file systems for external USB drives.

Dismounting Drives

Procedures for safely dismounting internal or external drives before removal.

Chapter 4 Storage Management

Dismounting Using the Function Button

How to dismount drives using the physical function button on the TeraStation.

Dismounting from Settings

Steps to dismount drives through the TeraStation's settings interface.

Checking Drives

Running drive checks to test data integrity and automatically fix errors.

S.M.A.R.T.

Understanding and checking S.M.A.R.T. information for internal drive reliability.

Chapter 4 Storage Management

Displaying S.M.A.R.T. Information

How to view S.M.A.R.T. data for internal drives.

Checking the Drive Condition

Interpreting drive attributes and identifying potential issues based on threshold values.

Formatting Drives

Procedures for formatting internal or external drives.

Encrypting Drives

Encrypting internal drives and arrays using AES for enhanced security.

Chapter 4 Storage Management

Erasing Data on the TeraStation Completely

Securely erasing all data and settings from the TeraStation to factory defaults.

Quotas

Setting storage quotas for users and groups to manage disk space usage.

Quotas for Users

How to limit the shared folder space available for individual user accounts.

Quotas for Groups

How to limit the shared folder space available for user groups.

Chapter 4 Storage Management

Size Limits

Information on creating volumes with maximum size limits when LVM is enabled.

Using the TeraStation as an iSCSI Device

Configuring the TeraStation to function as an iSCSI target for block-level storage access.

Introduction

Overview of iSCSI protocol and its use with the TeraStation.

Differences Between NAS and iSCSI

Comparison of NAS file sharing versus iSCSI block-level storage access.

Chapter 4 Storage Management

Network Configuration

Recommendations for network setup when using iSCSI for optimal performance.

Connection Tool

Information about the Microsoft iSCSI Software Initiator.

Creating an iSCSI Volume

Step-by-step guide to creating iSCSI volumes on the TeraStation.

Connecting Volumes

How to connect to iSCSI volumes from a client computer.

Chapter 4 Storage Management

Disconnecting Volumes

Procedures for disconnecting from iSCSI volumes.

Using with Multiple Computers

Considerations for accessing a single iSCSI volume from multiple computers.

Checking Whether iSCSI Volume Is Connected

Verifying the connection status of iSCSI volumes.

Configuring Access Restrictions

Setting up CHAP authentication for secure iSCSI access.

Chapter 4 Storage Management

Configuring Access Restrictions for the Entire TeraStation

Enabling access control for all iSCSI volumes on the TeraStation.

Connecting Volumes on the Access-Restricted TeraStation

How to connect to iSCSI volumes when access restrictions are enabled.

Configuring Access Restrictions for Individual Volumes

Setting up access controls for specific iSCSI volumes.

Connecting to Individual Volumes That Are Access-Restricted

How to connect to individual iSCSI volumes with access restrictions.

Chapter 4 Storage Management

Expanding Volume Sizes

How to increase the size of existing iSCSI volumes.

Deleting Volumes

Procedures for deleting iSCSI volumes.

Advanced Settings

Configuring advanced parameters for iSCSI volumes.

Chapter 5 Backup

Backing Up Data on the TeraStation

Overview of backing up data from the TeraStation to various destinations.

Backup Modes

Explains the different backup modes available (Full, Overwrite Incremental/Differential).

Full Backup

Details on performing a full backup of all files from the source to the destination.

Chapter 5 Backup

Overwrite (Incremental)

How incremental backups work, backing up only changed files.

Overwrite (Differential)

How differential backups work, backing up changes since the last full backup.

Management Backup

Storing management information and changed files for version tracking.

Preparing a Backup Destination

Steps to configure a shared folder or USB drive as a backup destination.

Chapter 5 Backup

Configuring a Backup Job

Setting up scheduled or manual backup jobs.

If Backing Up from rsync-Compatible Devices to the TeraStation

How to enable rsync access for backing up data from compatible devices to the TeraStation.

Restoring Backup Data

Procedures for restoring data from backups, varying by backup mode.

Backup Logs for If Backup Fails

Information on troubleshooting backup failures using error codes and logs.

Chapter 5 Backup

Replication

Setting up replication to copy data to another TeraStation for redundancy.

Preparing a Replication Destination

Configuring a shared folder or USB drive as a replication destination.

Configuring a Replication Job

Setting up replication jobs to copy data between TeraStations.

Synchronizing Between Source and Destination TeraStations Periodically

Automating data synchronization between TeraStations on a schedule.

Chapter 5 Backup

Failover

Configuring a secondary TeraStation to take over if the primary fails.

Before Configuring Failover

Prerequisites and network considerations before setting up failover.

Usage Restrictions

Limitations and conflicts when failover is enabled with other features.

Configuring Failover

Step-by-step guide to setting up the failover configuration between two TeraStations.

Chapter 5 Backup

Switching to the Backup TeraStation Manually

How to manually switch operations to the backup TeraStation.

Reconfiguring After Failover Occurs

Steps to reconfigure failover settings after a failover event.

Synchronizing Between Main and Backup TeraStations Periodically

Setting up periodic synchronization between main and backup TeraStations.

Backing Up Your Mac with Time Machine

Configuring the TeraStation to work with macOS Time Machine backups.

Chapter 6 Cloud Services and Remote Access

Synchronizing with Amazon S3

Setting up synchronization with Amazon S3 cloud storage.

Preparing for Amazon S3

Initial steps to configure the TeraStation for Amazon S3 integration.

Uploading Files to Amazon S3

How to upload files to Amazon S3 buckets using backup jobs.

Synchronizing with Dropbox

Setting up synchronization with Dropbox cloud storage.

Chapter 6 Cloud Services and Remote Access

Configuring a New Job

Steps to create a new synchronization job for cloud services like Dropbox.

Changing Job Settings

Modifying the settings of existing synchronization jobs.

Corrective Actions for in Case of Error

Troubleshooting common error codes encountered during cloud service synchronization.

WebAccess

Utility for accessing TeraStation files remotely via the internet.

Chapter 6 Cloud Services and Remote Access

FTP

Enabling and configuring FTP access for remote file transfer.

Using Microsoft Azure for Data Preservation

Synchronizing data with Microsoft Azure cloud storage.

Creating a New Backup Job

Setting up a new backup job for Microsoft Azure.

Creating a New Restore Job

Setting up a new restore job from Microsoft Azure.

Chapter 6 Cloud Services and Remote Access

Changing Job Settings

Modifying the settings of existing Microsoft Azure synchronization jobs.

Synchronizing with Microsoft OneDrive

Setting up synchronization with Microsoft OneDrive cloud storage.

Configuring a New Job

Steps to create a new synchronization job for OneDrive.

Chapter 6 Cloud Services and Remote Access

Changing Job Settings

Modifying the settings of existing OneDrive synchronization jobs.

Corrective Actions for in Case of Error

Troubleshooting common error codes encountered during OneDrive synchronization.

Chapter 6 Cloud Services and Remote Access

WebAccess

Utility for accessing TeraStation files remotely via the internet.

FTP

Enabling and configuring FTP access for remote file transfer.

Chapter 7 Advanced Features

Antivirus Software

Protection against viruses, malware, and spyware using Trend Micro NAS Security.

Activating Virus Scanning

How to enable and configure virus scanning on the TeraStation.

Configuring Security Settings

Adjusting antivirus settings like pattern updates and scan schedules.

Licenses

Information about licensing for the antivirus software.

Chapter 7 Advanced Features

Connecting Through a Proxy Server

Configuring proxy server settings for internet access, required for updates.

Updating Antivirus Pattern Files

Setting up automatic updates for antivirus pattern files.

Configuring Folders as Virus Scanning Targets

Excluding specific shared folders from virus scans.

Configuring Virus Scanning

Setting up different types of virus scans (real-time, scheduled, manual).

Chapter 7 Advanced Features

Checking the Log

How to view virus scan logs.

Opening the Online Help

Accessing the integrated online help for the antivirus software.

Email Notification

Configuring email alerts for events like errors or status changes.

Sleep Mode

Scheduling the TeraStation to enter sleep (standby) mode to save energy.

Chapter 7 Advanced Features

Wake-on-LAN

Enabling remote power-on functionality for the TeraStation.

UPS (Uninterruptible Power Supply)

Connecting a UPS for automatic shutdown during power outages.

Port Trunking

Configuring multiple LAN ports for increased bandwidth and redundancy.

Offline Files for Windows

Enabling offline access to TeraStation files for Windows clients.

Chapter 7 Advanced Features

Accessing from an NFS Client

Configuring the TeraStation to allow access from NFS clients.

Encrypting Data Transmission

Securing data transfer using SSL/TLS encryption.

Updating SSL Key Files

How to update server certificates and private keys for SSL.

SNMP

Configuring SNMP for network management and monitoring.

Chapter 7 Advanced Features

Saving and Applying Settings

Backing up and restoring TeraStation settings using a USB drive.

Saving Settings

Steps to save the current configuration to a USB drive.

Applying Settings

How to transfer saved settings from a USB drive to another TeraStation.

Transferring Another TeraStation’s Settings

Moving configurations from one TeraStation to another.

Chapter 7 Advanced Features

Creating a Config File (.nas_config)

Creating a configuration file for transferring settings, especially for TS-X series.

Restoring Factory Defaults

Resetting the TeraStation to its original factory default settings.

Initializing from Settings

Performing a factory reset using the settings interface.

Initializing Using the USB Initialization Drive

Resetting the TeraStation to factory defaults using a prepared USB drive.

Chapter 7 Advanced Features

Creating a USB Initialization Drive

Step-by-step guide to creating a USB drive for initializing settings.

Starting Initialization

Procedures to initialize the TeraStation using a created USB drive.

Resetting the Administrator Password

How to reset the admin password if it's forgotten or settings are inaccessible.

Logs

Managing and viewing system logs.

Chapter 7 Advanced Features

Displaying TeraStation’s Logs

Viewing system and file access logs from the TeraStation.

Transferring Logs to the Syslog Server

Configuring the TeraStation to send logs to an external syslog server.

Creating a Shortcut to the Logs in the Shared Folder

Creating a shortcut to log files within a shared folder for easier access.

Changing Archive Rules for File Access Logs

Configuring how long and how many file access logs are stored.

Chapter 7 Advanced Features

Updating the Firmware

Procedures for updating the TeraStation's firmware.

Updating Manually

How to manually install firmware updates.

Updating Automatically

Configuring the TeraStation to update firmware automatically.

Configuring Update Notification

Setting up notifications for new firmware versions.

Chapter 7 Advanced Features

Name, Date, Time, and Language

Configuring the TeraStation's hostname, date, time, and language settings.

Beep Alerts

Configuring audible alerts for specific errors or events.

LEDs

Adjusting the brightness of the TeraStation's LEDs.

Proxy Server

Configuring proxy server settings for internet connectivity.

Chapter 7 Advanced Features

Jumbo Frames

Enabling Jumbo Frames to potentially improve network performance.

Changing the IP Address

How to manually change the TeraStation's IP address.

Mapping IP Address and Hostname

Configuring hostname (FQDN) mapping for network communication.

Chapter 8 Drive Replacement

LEDs

Explains the status and error LEDs on the TeraStation drives.

Drive Replacement Procedure

General steps for replacing a TeraStation drive.

Using a Redundant RAID Mode or JBOD and TeraStation Is On

Procedure for replacing a failed drive in a redundant RAID or JBOD array while the unit is on.

Using a Redundant RAID Mode or JBOD and TeraStation Is Off

Procedure for replacing a failed drive in a redundant RAID or JBOD array while the unit is off.

Chapter 8 Drive Replacement

Using RAID 0

Procedure for replacing a drive in a RAID 0 array.

Using a Hot Spare

Configuring a new drive as a hot spare after replacement.

Replacing a Non-Malfunctioning Drive

Instructions for replacing a drive that is not malfunctioning.

Chapter 8 Drive Replacement

Operating in RAID 0 Mode

Behavior of a RAID 0 array after replacing a drive.

Operating in JBOD

Behavior of a JBOD setup after replacing a drive.

Operating in a Redundant RAID Mode

Behavior of redundant RAID modes after replacing a drive.

Chapter 9 Utilities

NAS Navigator2

Utility for managing Buffalo NAS devices, including IP address and drive checks.

Windows

Instructions for downloading and installing NAS Navigator2 on Windows.

macOS

Instructions for downloading and installing NAS Navigator2 on macOS.

NovaBACKUP

Utility for backing up computer data using NovaBACKUP.

Chapter 10 Appendix

TeraStation Does Not Work Properly

Troubleshooting guide for common issues preventing the TeraStation from booting.

Power LED Keeps Blinking

Steps to recover from drive setup mode when the power LED blinks.

Booting the TeraStation in Emergency Mode

Procedures to recover the TeraStation from emergency mode.

Chapter 10 Appendix

Info and Error LEDs

Details event/error codes indicated by LEDs and their corrective actions.

Errors

Lists specific error codes (E10-E30) and their corrective actions.

Chapter 10 Appendix

Status

Lists status codes (I01-I72) and their corrective actions.

Default Settings

Lists the default administrator, password, shared folders, and network settings.

Chapter 10 Appendix

Specifications

Technical specifications of the TeraStation, including LAN, USB, and RAID modes.

Buffalo TeraStation 3420DN Specifications

General IconGeneral
TypeNAS
Device classHome & Home Office
Backup featuresCloud
Web-based managementYes
Processor cores4
Processor modelAlpine AL-214
Processor familyAnnapurna Labs
Processor frequency1.4 GHz
Processor manufacturer-
Internal memory1 GB
Internal memory typeDDR3
AC input voltage100 - 240 V
AC input frequency50 - 60 Hz
Power consumption (max)85 W
Power consumption (typical)33 W
Power consumption (HDD standby)0.93 W
Wi-FiNo
Ethernet LAN data rates10, 100, 1000, 2500 Mbit/s
Supported network protocolsTCP/IP
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)10 - 85 %
Chassis typeDesktop
Product colorBlack
RAID levels0, 1, 5, 6, 10, JBOD
Storage drive size- \
Storage drive capacity2000 GB
Storage drive interfaceSerial ATA III
Installed storage drive typeHDD
Supported storage drive typesHDD & SSD
Total installed storage capacity4 TB
Number of storage drives supported2
USB 2.0 ports quantity0
Operating system installedLinux
Mac operating systems supportedMac OS X 10.11 El Capitan
Server operating systems supportedWindows Server 2012, Windows Server 2016, Windows Server 2019
Windows operating systems supportedWindows 10, Windows 7, Windows 8.1
Weight and Dimensions IconWeight and Dimensions
Depth230 mm
Width170 mm
Height215 mm
Weight7100 g

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