ASUSTOR NAS is a series of large scale consumer and enterprise storage solutions that allow users to configure their device as RAID or a single pool volume. ASUSTOR NAS devices support various types of file systems, including NTFS, HFS+, EXT4, and BTRFS. These NAS devices come with advanced data protection features, such as snapshots, Network Recycle Bin, two-way backup, etc.
However, NAS devices are prone to data loss due to various reasons. Some common reasons behind data loss from NAS devices are accidental data deletion, volume/partition formatting, drive/controller failure, and others. In some scenarios, you may lose access to the data stored on a NAS device after installing buggy firmware updates.
In this guide, we will explain different ways (depending on the data loss reason) to help you recover data from ASUSTOR NAS device.
Causes of Data Loss from ASUSTOR NAS Device
Here are some common reasons for data loss from ASUSTOR NAS devices:
- Accidentally deleting files
- Accidentally formatting a volume/partition
- Failed member drive/s
- Malfunctioning RAID controller
- RAID controller firmware corruption
- Installing buggy firmware updates
- Abrupt power cuts during read/write operations
Performing data recovery from an ASUSTOR NAS device depends upon the cause of data loss. You can follow the methods explained below to recover data from ASUSTOR NAS device.
Method 1: Use ASUSTOR NAS Backup Solution
ASUSTOR NAS devices come with various data backup solutions, such as Rsync Backup, Cloud Backup, FTP Backup, etc. Users can use such a solution to back up their data on external storage devices or cloud. They can also take remote backups of their NAS data on other remote servers or create and save regular snapshots of their data. If you’re using any backup solution, you can easily recover the lost data from the backup.
Method 2: Hot Swap the Failed Drive
If you are using a RAID-based NAS and have lost data due to a member drive failure, you can hot-swap the degraded member drive with a new drive. However, ensure that the new drive has the same specifications (capacity and brand) as the old one. Once you have successfully hot-swapped the failed drive, the RAID controller will calculate the parity in other drives and rebuild the array.
Caution: There is a risk of failure of RAID rebuilding process due to disk read/write errors. This can affect other member drives. If you are unsure, take the help of a professional/expert.
Method 3: Use a NAS Data Recovery Software
To simplify the data recovery process, you can use Stellar Toolkit for Data Recovery. It is an advanced NAS data recovery software that helps you recover data lost from NAS devices due to accidental deletion, volume formatting, drive failure, and more. It supports data recovery from NAS devices of different brands, including ASUSTOR and Synology. The software also supports recovery of data from a RAID-based NAS. It also offers a Drive Monitor utility to check the health and S.M.A.R.T. status of member drives.
Here are the steps to use Stellar Toolkit for Data Recovery to recover data from an ASUSTOR NAS device:
- Disconnect the member drives from your ASUSTOR NAS device and connect them to a Windows PC.
Note: Connect the drives in the same order as they’re in the NAS device.
- Download and install Stellar Toolkit for Data Recovery from its official website on the same computer. Launch it.
- You will see the Select What to Recover screen. Select what type of data you want to recover. By default, the All Data option is selected. Click Next to proceed.
- On the Recover From screen, choose the displayed NAS drive under the Connected Drives section. Click Scan.
- The software will scan the connected NAS drives. After the scanning is complete, the software will list all the recoverable files. You can click on a file to preview it.
- After previewing the recoverable files, choose the files that you want to recover. Click on Recover to save the recoverable files.
Note: If you have downloaded the free version of the software, purchase its license to save the recovered files.
- Click on Browse to select the folder/path to save the recovered files. This can be an external storage drive or a different volume on the computer. After selecting the location, click on Start Saving to save the recovered files.
The software will save the recoverable files at the selected location.
Conclusion
Like other storage devices, NAS devices are also prone to data loss. Data loss can happen due to varied reasons, such as accidental deletion, partition formatting, drive failure, RAID controller failure, and more. If you have lost your data from an ASUSTOR NAS device, you can follow the methods mentioned above. You can use Stellar Toolkit for Data Recovery to simplify the process of recovering data from a failed or inaccessible ASUSTOR NAS.
Difference between EXT4 and BTRFS File Systems
Differences between RAID and NAS
How to make NAS safe from spyware?
Follow the best security practices, such as enabling SSL, two-factor authentication, firewall, etc. to protect your data from unauthorized access and spyware.
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