NAS Synology DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j RAID Arrays: Data Recovery Tips for Component Wear

Recovering data after natural component wear in ⭐ NAS RAID arrays: effective recovery strategies.

NAS Synology DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j RAID Arrays: Data Recovery Tips for Component Wear

Synology DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j.

NAS Synology DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j RAID Arrays: Data Recovery Tips for Component Wear

RAID Recovery™ 2.6
Recover data from damaged RAID arrays inaccessible from a computer.
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Why can’t ordinary software tools restore files from RAID?

Conventional hard disks keep user’s data by writing it to their surface in a consecutive way, and this is how an entire file is stored on a single hard disk. However, when data is written to a RAID system, a file is divided into several parts. Then these parts are written consecutively to all hard disks within such array. The size of such parts may range from 2 KB to 2 MB, so each file is stored on several hard disks at the same time.

Such approach helps to speed up read and write operations, and it is evident that saving two parts of a file having the size of 1 GB to two hard disks simultaneously is much faster than saving the same 1 GB of data to one hard disk. However, this peculiarity makes file recovery more complicated.

Various RAID levels store information in different ways. Additionally, manufacturers like Synology also introduce some modifications to this process, and that is why data can be written to hard disk in a wide variety of ways.

Can implementing user quotas or permissions help prevent accidental data loss on NAS Synology DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j devices?

Yes, implementing user quotas and permissions can help prevent accidental data loss on NAS Synology DiskStation devices, including DS411+II, DS411+, DS411, DS411slim, and DS411j.

User quotas allow you to limit the amount of storage space that each user can consume on the NAS. By setting quotas, you can prevent users from accidentally or intentionally filling up the storage with unnecessary or large files, thus ensuring that there is always enough space available for critical data.

Permissions, on the other hand, control the access rights of users to specific files and folders on the NAS. By assigning appropriate permissions, you can restrict users from modifying or deleting important files or folders, reducing the risk of accidental data loss. For example, you can set read-only access or deny delete permissions to certain folders containing critical data.

Additionally, Synology DiskStation devices offer advanced features such as file versioning and snapshot replication, which can further safeguard against accidental data loss. File versioning allows the NAS to keep multiple versions of a file, enabling you to restore previous versions in case of accidental modifications or deletions. Snapshot replication creates point-in-time copies of data, providing a way to recover files or folders to a previous state.

It is important to regularly back up your data from the NAS to an external storage device or a cloud backup service as an additional layer of protection against accidental data loss.

How to take hard disks out of the NAS and connect them to a PC?

Although NAS DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j can be accessed over the network, you still need to take the hard disks out of the storage device and connect them to a Windows computer. Only in this case will the software be able to scan them properly. Here is what you should do:

  1. Turn off the storage and disconnect it from the power supply.

    WARNING! Before you start taking hard disks out of your NAS device, read the manual carefully. Incorrect actions may damage your network-attached storage and/or the hard disks within the RAID system.

  2. Take the hard disks out of the NAS one by one, carefully removing them from their slots. Remember that the disks are extremely vulnerable: hitting or dropping them may result in serious physical damage.

  3. Make sure to mark each hard disk in accordance with how they were installed inside the NAS.

  4. Remove the hard disks and connect them to the computer. In this video, we have explored what ports are used to connect hard disks, and what to do if there are not enough ports or connectors.

    Go to view
    How to Order Remote Data Recovery

    How to Order Remote Data Recovery

Restoring data with Hetman RAID Recovery

Hetman Raid Recovery

This program recovers data from damaged RAID arrays and is fully compatible with Synology DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j. The hard disks that make up the RAID contain technical information about the algorithm used to save files. When launched, Hetman RAID Recovery reads this information and puts the damaged array together. Then you can open the disk and save your files. Also, you can recover the files accidentally deleted from the network drive.

Go to view
How to recover data from a Synology

How to recover data from a Synology

DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j has 4 HDD slots, and it supports the following array types:

  • Synology Hybrid RAID (SHR);
  • RAID 6;
  • RAID 5;
  • RAID 10;
  • RAID 1;
  • RAID 0;
  • Basic;
  • JBOD;

NAS supports:

  • Btrfs;
  • EXT4;
  • EXT3 (External Disk Only);
  • FAT32 (External Disk Only);
  • exFAT (External Disk Only);
  • NTFS (External Disk Only);
  • HFS+ (External Disk Read Only);

Safe recovery from disk images

This utility lets you save an entire copy of the disk to file and then work with this image instead of the actual disk. Such feature helps to protect data on the disk from:

  • Overwriting during the recovery process;
  • Loss resulting from bad sectors;
  • User mistakes.

To create an image, do the following:

  1. Make sure that you have enough free space to save the image. The image file size usually equals the disk size.

  2. Select the disk in the main window, and choose from the menu ToolsSave Disk. You can select multiple disks to be saved.

  3. When the image creation wizard starts, you can choose to save the entire disk or select only a part of it. Specify the parameters and click Next.

    Hetman Raid Recovery: Image Creation Wizard
  4. At this stage, you need to choose a directory where to save the image. Choose any disk connected to this PC, or save the image by FTP.

    Hetman Raid Recovery: hoose any disk connected to this PC, or save the image by FTP

Where are user’s files stored?

The Synology DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j network-attached storage keeps DSM (DiskStation Manager) operating system files on a separate RAID 1 (mirrored) array. Usually, all NAS systems create several volumes on every hard disk, and the first of them takes up to 2 Gb of space. This is where operating system files are stored. Other volumes are united into a RAID array where user’s data is written.

Comparison of software for RAID recovery

Product Operating system License type RAID controller support Supported file systems Virtual RAID controller support Data recovery from damaged RAID File preview
Hetman RAID Recovery Windows Paid Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
DiskInternals RAID Recovery Windows Paid Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
R-Studio Windows, Mac, Linux Paid Yes, over 200 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
UFS Explorer RAID Recovery Windows, Mac, Linux Paid Yes, over 1,000 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
EaseUS Data Recovery Windows Paid Yes, over 20 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
ReclaiMe Free RAID Recovery Windows Free Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes

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Comments (1)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 9.08.2022 12:31 #
    If you want to ask a question about data recovery, from NAS DiskStation DS411+II / DS411+ / DS411 / DS411slim / DS411j, feel free to leave a comment!
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Vladimir Artiukh

Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Oleg Afonin

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as xaker.ru, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.

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Questions and answers

  • How do I set up the network settings for my Synology DiskStation DS411+II?

    To set up the network settings for your Synology DiskStation DS411+II, follow these steps:

    1. Connect your DiskStation to your router using an Ethernet cable.
    2. Power on your DiskStation and wait for it to boot up.
    3. Open a web browser on your computer and enter the DiskStation's IP address in the address bar. The default IP address is usually "http://find.synology.com" or "http://diskstation:5000".
    4. You will be directed to the Synology DiskStation Manager (DSM) login page. Enter the default username "admin" and leave the password field blank. Click "Sign In" to log in.
    5. On the DSM desktop, click on the "Control Panel" icon.
    6. In the Control Panel, click on the "Network" icon.
    7. Under the "General" tab, you can configure the network settings. Select "Auto" for "IP Configuration" if you want your DiskStation to obtain an IP address automatically from your router. Alternatively, you can select "Manual" and enter the IP address, subnet mask, default gateway, and DNS server manually.
    8. Under the "IPv6" tab, you can configure IPv6 settings if required. You can choose "Auto" or "Manual" configuration.
    9. Click "Apply" to save the changes.
    10. Your DiskStation will restart to apply the new network settings.

    Note: If you are unsure about the network settings or want to use specific settings, it is recommended to consult your network administrator or refer to the user manual provided by Synology.

  • What are the recommended security settings for the Synology DiskStation DS411j?

    Here are some recommended security settings for the Synology DiskStation DS411j:

    1. Change the default administrator username and password: Upon initial setup, change the default credentials to a unique and strong username and password combination.
    2. Enable two-factor authentication (2FA): Enable 2FA for added security. This will require users to provide a second form of authentication, such as a verification code from a mobile app, in addition to their username and password.
    3. Enable auto-blocking for failed login attempts: Set up an auto-blocking feature that temporarily blocks IP addresses after a certain number of failed login attempts. This helps prevent brute-force attacks.
    4. Regularly update the DSM (DiskStation Manager) software: Keep the DSM software up to date with the latest security patches and updates. Enable automatic updates to ensure you are always running the latest version.
    5. Enable firewall and network access rules: Configure the built-in firewall on the DiskStation to restrict access to only necessary ports and services. Set up network access rules to allow only trusted IP addresses or networks to access the DiskStation.
    6. Disable unnecessary services: Disable any unnecessary services or applications running on the DiskStation to reduce the attack surface. Only enable services that are required for your specific needs.
    7. Use strong and unique passwords for user accounts: Encourage all users to create strong and unique passwords for their accounts. Avoid using default or easily guessable passwords.
    8. Regularly backup your data: Implement a regular backup strategy to ensure your data is protected in case of any security incidents or hardware failures. Consider using an off-site backup solution for added redundancy.
    9. Enable HTTPS for remote access: If you access your DiskStation remotely, enable HTTPS (SSL/TLS) encryption for secure communication. This helps protect your data during transmission.
    10. Monitor system logs and enable notifications: Regularly review system logs for any suspicious activities or unauthorized access attempts. Enable email or push notifications to alert you of any potential security events.

    Remember, these are general recommendations, and you should also consider your specific security requirements and consult the official documentation provided by Synology for detailed instructions on configuring security settings for your specific model.

  • Can I customize the power settings on my Synology DiskStation DS411slim? If so, how?

    Yes, you can customize the power settings on your Synology DiskStation DS411slim. Here's how:

    1. Log in to your DiskStation's web interface using a web browser.
    2. Go to the Control Panel by clicking on the "Main Menu" button in the upper-left corner and selecting "Control Panel."
    3. In the Control Panel, select "Power" under the "Hardware & Power" section.
    4. In the Power settings, you will find various options to customize the power settings of your DiskStation.

    Here are some of the power settings you can customize:

    • System Hibernation: Enable or disable system hibernation. When enabled, the DiskStation will enter hibernation mode after a certain period of inactivity to save power.
    • HDD Hibernation: Enable or disable HDD hibernation. When enabled, the DiskStation will spin down the hard drives after a certain period of inactivity to save power.
    • Wake-on-LAN: Enable or disable Wake-on-LAN feature. When enabled, you can wake up the DiskStation remotely using a Wake-on-LAN command.
    • Power Schedule: Set a schedule for the DiskStation to automatically turn on or off at specific times. This can be useful to save power during non-working hours.

    Once you have customized the power settings according to your preferences, click on the "Apply" button to save the changes.

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