Features of Data Recovery from NAS QNAP TVS-882BRT3 for Home Users

Contents

• Why can’t ordinary software tools restore files from RAID?
• How to take hard disks out of the NAS and connect them to a PC?
  • Restoring data with Hetman RAID Recovery
  • Safe recovery from disk images
  • Where are user’s files stored?
  • Comparison of software for RAID recovery

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 QNAP also introduce some modifications to this process, and that is why data can be written to hard disk in a wide variety of ways.

How can regular performance monitoring and optimization help in preventing data loss on NAS QNAP TVS-882BRT3 devices?

Regular performance monitoring and optimization can help prevent data loss on NAS QNAP TVS-882BRT3 devices in the following ways:

1. Early detection of hardware issues: Monitoring performance metrics such as CPU usage, memory utilization, disk health, and temperature can help identify any potential hardware problems that may lead to data loss. For example, if the CPU utilization is consistently high, it could indicate a bottleneck or hardware failure that needs to be addressed promptly.
2. Proactive identification of storage issues: Monitoring the NAS storage capacity and usage trends can help prevent data loss due to insufficient storage space. By regularly monitoring and optimizing the storage allocation, you can ensure that there is enough free space to prevent data loss and avoid unexpected interruptions.
3. RAID health monitoring: The QNAP TVS-882BRT3 supports various RAID configurations for data redundancy. Monitoring the RAID health and status can help detect any issues with the RAID array, such as disk failures or degraded performance. By promptly addressing these issues, you can prevent data loss and ensure the integrity of your data.
4. Backup monitoring: Regularly monitoring the backup processes and verifying the integrity of the backup data can help ensure that your data is properly protected. By monitoring backup jobs, you can identify any failures or inconsistencies in the backup process, allowing you to take corrective actions and prevent data loss.
5. Network monitoring: Monitoring the network performance and connectivity of the NAS device can help prevent data loss caused by network issues. By monitoring network latency, packet loss, and bandwidth utilization, you can identify and resolve any network-related problems that may impact data availability and prevent data loss.
6. Firmware and software updates: Regularly updating the firmware and software of the QNAP TVS-882BRT3 device can help prevent data loss by ensuring that you have the latest bug fixes, security patches, and performance optimizations. Keeping the device up to date minimizes the risk of vulnerabilities that could lead to data loss or unauthorized access.

Overall, regular performance monitoring and optimization of the NAS QNAP TVS-882BRT3 device can help identify and address any potential issues that may lead to data loss, ensuring the safety and availability of your data.

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

Although NAS TVS-882BRT3 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.

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   How to Order Remote Data Recovery

Restoring data with Hetman RAID Recovery

This program recovers data from damaged RAID arrays and is fully compatible with QNAP TVS-882BRT3. 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.

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How to recover data from a QNAP

TVS-882BRT3 has 8 HDD slots, and it supports the following array types:

• RAID 50;
• RAID 60;
• RAID 6;
• RAID 5;
• RAID 10;
• RAID 0;
• RAID 1;
• JBOD;

NAS supports:

• ZFS;
• EXT4;
• EXT3;
• exFAT;
• FAT32 (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 Tools – Save 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.

   

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.

   

Where are user’s files stored?

The QNAP TVS-882BRT3 network-attached storage keeps QTS (QuTS hero) 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