- 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 LaCie 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 the NAS LaCie 1big Dock SSD Pro (STHW2000800 / STHW4000800) device's CPU or processing power affect data transfer and potential loss?
The CPU or processing power of the NAS LaCie 1big Dock SSD Pro can have an impact on data transfer speeds and potential data loss in the following ways:
- Data Transfer Speed: The CPU plays a crucial role in processing and managing data transfers. A more powerful CPU can handle data more efficiently, resulting in faster transfer speeds. If the CPU is underpowered or overwhelmed, it may struggle to keep up with high-speed data transfers, leading to slower transfer rates.
- RAID Performance: The NAS LaCie 1big Dock SSD Pro supports RAID configurations for data redundancy and performance. The CPU's processing power can affect the performance of RAID setups, especially when rebuilding or synchronizing data across multiple drives. A faster CPU can handle the complex calculations involved in RAID operations more quickly, minimizing the time required for data synchronization and reducing the risk of data loss during the process.
- Data Integrity and Error Correction: The CPU is responsible for error correction and ensuring data integrity during transfers. A more powerful CPU can perform error detection and correction more efficiently, reducing the chances of data corruption or loss during transfers. Inadequate processing power may result in errors going undetected or uncorrected, potentially leading to data loss or corruption.
- Network and File System Processing: The CPU also handles network protocols and file system operations. A faster CPU can process network requests and file system operations more quickly, allowing for smoother data transfers and reducing the likelihood of data loss due to network bottlenecks or file system errors.
In summary, the CPU or processing power of the NAS LaCie 1big Dock SSD Pro can affect data transfer speeds, RAID performance, data integrity, and error correction capabilities. A more powerful CPU can improve these aspects, reducing the risk of data loss and ensuring smoother data transfers.
How to take hard disks out of the NAS and connect them to a PC?
Although NAS 1big Dock SSD Pro (STHW2000800 / STHW4000800) 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 LaCie 1big Dock SSD Pro (STHW2000800 / STHW4000800). 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 LaCie
1big Dock SSD Pro (STHW2000800 / STHW4000800) has 1 HDD slots, and it supports the following array types:
- None;
NAS supports:
- exFAT, VFAT, FAT 12 / 16 / 32;
- NTFS / ReFS;
- APFS / HFS+;
- Ext2 / 3 / 4 / ReiserFS / XFS / UFS / ZFS / Btrfs;
- VMFS / HikvisionFS;
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 LaCie 1big Dock SSD Pro (STHW2000800 / STHW4000800) network-attached storage keeps LaCie NAS OS 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 |
LaCie 1big Dock SSD Pro devices are compatible with various backup software options available in the market. Some popular backup software that can be used for data recovery from NAS devices, including LaCie 1big Dock SSD Pro, are:
It's important to note that while these software options are generally compatible with NAS devices, it's recommended to check the specifications and compatibility requirements of the specific backup software before making a selection.