How to recover data from Infortrend EonStor DS 3060 NAS

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

Are there any specific precautions to take while migrating data between NAS Infortrend EonStor DS 3060 devices?

Yes, there are several precautions to consider while migrating data between NAS Infortrend EonStor DS 3060 devices:

1. Backup your data: Before starting the migration process, it is crucial to create a backup of all your important data. This ensures that you have a copy of your files in case of any unforeseen issues during the migration.
2. Plan the migration process: Develop a detailed plan for the migration process, including the timeline, steps, and resources required. This will help you stay organized and minimize any potential disruptions.
3. Verify compatibility: Ensure that the target NAS Infortrend EonStor DS 3060 device is compatible with the source device. Check for any specific requirements or limitations mentioned in the product documentation or contact Infortrend support for assistance.
4. Check available storage space: Make sure that the target NAS device has enough storage space to accommodate the data being migrated. If necessary, consider expanding the storage capacity before initiating the migration.
5. Network connectivity: Ensure that both the source and target NAS devices have a stable network connection. This will help in maintaining data integrity and reducing the chances of data loss or corruption during the migration process.
6. Test the migration process: Before performing the actual migration, it is recommended to perform a test migration with a small subset of data. This will help identify any potential issues or challenges that need to be addressed before migrating the entire dataset.
7. Monitor the migration process: During the migration, closely monitor the progress and performance of the data transfer. Keep an eye on any error messages or warnings that may indicate issues with the migration process.
8. Verify data integrity: Once the migration is complete, verify the integrity of the migrated data by performing thorough checks and tests. Compare the migrated data with the original data to ensure that no data loss or corruption has occurred.
9. Update configurations and settings: After the migration, update any necessary configurations and settings on the target NAS device to ensure optimal performance and compatibility with your environment.
10. Seek professional assistance if needed: If you are unsure or inexperienced in migrating data between NAS devices, consider seeking professional assistance from Infortrend support or a qualified IT professional to ensure a smooth and successful migration process.

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

Although NAS EonStor DS 3060 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 Infortrend EonStor DS 3060. 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 Infortrend

EonStor DS 3060 has 60 HDD slots, and it supports the following array types:

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

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:

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 Infortrend EonStor DS 3060 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