Essential Features for Home NAS QNAP SS-EC1279U-SAS-RP Data Recovery

Contents

• Why Regular Data Recovery Tools Can’t Restore Files from RAID
• Key Information About the NAS QNAP SS-EC1279U-SAS-RP
• How to Remove Hard Disks from Your NAS and Connect Them to a PC
  • Step-by-Step Data Recovery with Hetman RAID Recovery
  • How to Safely Recover Data from Disk Images
  • Where Are the User’s Files Actually Stored?
  • RAID Recovery Software: Detailed Comparison

Why Regular Data Recovery Tools Can’t Restore Files from RAID

Conventional hard drives store user data by writing it sequentially across the disk surface, which means an entire file is typically located on a single drive. In contrast, when data is written to a RAID array, each file is split into multiple fragments. These fragments are then distributed and written in sequence across all the drives in the array. Depending on the configuration, fragment sizes can range from 2 KB to 2 MB, so every file is physically stored across several disks at once.

This approach significantly increases read and write performance — after all, writing two halves of a 1 GB file to two drives simultaneously is much faster than writing the full 1 GB to a single disk. However, this same mechanism makes file recovery far more complex.

Different RAID levels use different methods to distribute and protect data. On top of that, manufacturers like QNAP often add their own proprietary structures and variations. As a result, data can be written to disks in many different formats, and each requires a specific approach during recovery.

How can network issues impact the data stored on NAS QNAP SS-EC1279U-SAS-RP devices?

Network issues can impact the data stored on NAS QNAP SS-EC1279U-SAS-RP devices in several ways:

1. Slow data transfer: Network issues such as high latency, packet loss, or network congestion can result in slow data transfer speeds. This can affect the performance of the NAS device and cause delays in accessing or transferring data.
2. Data corruption: Network issues can lead to data corruption during file transfers. If packets are lost or corrupted during transmission, it can result in incomplete or corrupted files on the NAS device.
3. Inaccessibility: Network issues can cause intermittent connectivity problems, making the NAS device inaccessible from other devices on the network. This can prevent users from accessing or retrieving their data stored on the NAS.
4. Data loss: In severe cases, network issues such as power outages or network hardware failures can result in data loss on the NAS device. If the network connection is abruptly interrupted during a write operation, it can result in data loss or file system corruption.
5. Backup failures: Network issues can also impact the backup process for the NAS device. If the network connection is unreliable or experiences frequent interruptions, scheduled backups may fail, leading to potential data loss if no other backup mechanisms are in place.

To mitigate the impact of network issues on NAS devices, it is recommended to:

• Ensure a stable and reliable network infrastructure with proper cabling, switches, and routers.
• Monitor network performance regularly to identify and address any network issues promptly.
• Implement redundancy and backup strategies to protect data in case of network failures.
• Regularly update firmware and software on the NAS device to ensure compatibility and security.
• Consider implementing RAID configurations or other data redundancy mechanisms to protect against data loss.
• Utilize UPS (uninterruptible power supply) systems to protect the NAS device from sudden power outages.

How to Remove Hard Disks from Your NAS and Connect Them to a PC

Although the NAS SS-EC1279U-SAS-RP can be accessed over the network, you still need to remove its hard disks and connect them directly to a Windows PC. Only then can the recovery software properly scan and analyze the drives. Follow these steps:

1. Power off the NAS and disconnect it from the power source.

   WARNING! Before removing any drives, carefully read the device manual. Improper actions may damage both the NAS enclosure and the hard disks in the RAID array.

2. Remove the hard disks one by one, gently sliding each drive out of its slot. Remember that hard disks are highly sensitive: any impact or drop can cause serious physical damage.

3. Label each hard disk according to its position inside the NAS. The order of the drives is crucial for correct RAID reconstruction.

4. Connect the drives to your computer. In this video, we explain which ports you can use to connect hard disks and what to do if your PC does not have enough free connectors.

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   How to Order Remote Data Recovery

Step-by-Step Data Recovery with Hetman RAID Recovery

This program restores data from damaged RAID arrays and is fully compatible with QNAP SS-EC1279U-SAS-RP. Each hard disk in the array contains technical metadata describing how files were written. When launched, Hetman RAID Recovery analyzes this metadata, automatically reconstructs the damaged array, and provides access to its contents. After that, you can browse the recovered disk and save your files. The program can also restore files that were accidentally deleted from the network drive.

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How to recover data from a QNAP

SS-EC1279U-SAS-RP has 12 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);

How to Safely Recover Data from Disk Images

This utility allows you to create a complete copy of a disk and work with the disk image instead of the physical drive. This approach helps protect your data from:

• Overwriting during the recovery process;
• Additional data loss caused by bad sectors;
• User errors.

To create a disk image, follow these steps:

1. Ensure you have enough free space to store the image. Its size will typically match the size of the original disk.

2. In the main window, select the target disk and choose Tools - Save Disk. You can also select multiple disks if needed.

3. When the Image Creation Wizard opens, select whether you want to save the entire disk or only a specific region. Adjust the settings and click Next.

   

4. Choose the directory where the image will be saved. You may select any available disk connected to your PC or upload the image via FTP.

   

Where Are the User’s Files Actually Stored?

The QNAP SS-EC1279U-SAS-RP 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.

RAID Recovery Software: Detailed Comparison