- 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?
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 Raidon 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 the use of specific encryption algorithms or protocols impact data loss risks on NAS Raidon Mobile Rack iT1775C devices?
Yes, the use of specific encryption algorithms or protocols can impact data loss risks on NAS Raidon Mobile Rack iT1775C devices. Encryption algorithms and protocols are designed to protect data by converting it into a format that is unreadable without the appropriate decryption key. By using strong encryption algorithms and protocols, the risk of unauthorized access to the data stored on the device is reduced.
When selecting encryption algorithms or protocols, it is important to choose those that are widely recognized, tested, and considered secure. Some commonly used encryption algorithms include AES (Advanced Encryption Standard) and RSA (Rivest-Shamir-Adleman). These algorithms have undergone extensive scrutiny and are considered secure when implemented correctly.
Additionally, the strength of the encryption key used in conjunction with the algorithm or protocol is also crucial. Longer and more complex encryption keys are generally more secure and harder to crack. It is recommended to use keys that are at least 128 bits or longer for AES encryption.
Implementing encryption on NAS Raidon Mobile Rack iT1775C devices can significantly reduce the risk of data loss in case of theft, unauthorized access, or physical damage to the device. However, it is important to note that encryption alone cannot completely eliminate all data loss risks. Other factors such as proper backup strategies, secure access controls, and regular maintenance should also be considered to ensure data protection.
How to take hard disks out of the NAS and connect them to a PC?
Although NAS Mobile Rack iT1775C 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:
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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.
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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.
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Make sure to mark each hard disk in accordance with how they were installed inside the NAS.
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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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Restoring data with Hetman RAID Recovery
This program recovers data from damaged RAID arrays and is fully compatible with Raidon Mobile Rack iT1775C. 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.
How to recover data from a Raidon
Mobile Rack iT1775C has 1 HDD slots, and it supports the following array types:
- JBOD;
NAS supports:
- APFS / HFS+;
- Ext2 / Ext3 / Ext4;
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:
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Make sure that you have enough free space to save the image. The image file size usually equals the disk size.
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Select the disk in the main window, and choose from the menu Tools – Save Disk. You can select multiple disks to be saved.
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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.
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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 Raidon Mobile Rack iT1775C network-attached storage keeps OS Linux 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 |
Recovering data from a physically damaged NAS Raidon Mobile Rack iT1775C device is technically possible, but it depends on the extent of the damage. If the damage is limited to the external casing or connectors, it may be possible to transfer the hard drives to another compatible enclosure or connect them directly to a computer to access the data.
However, if the internal components or hard drives themselves are damaged, the chances of data recovery become more challenging. In such cases, it is recommended to seek professional data recovery services from a reputable company that specializes in recovering data from physically damaged storage devices.
It's important to note that data recovery from physically damaged devices can be a complex and costly process, and there is no guarantee of success. It is always recommended to regularly backup important data to prevent data loss in case of physical damage or other failures.