How to Recover Lost Files from NAS Lenovo ThinkSystem SR550 Rack Server Storage

Accidentally deleted important files on your ⭐ NAS? Our guide offers practical solutions for retrieval.

How to Recover Lost Files from NAS Lenovo ThinkSystem SR550 Rack Server Storage

Lenovo ThinkSystem SR550 Rack Server NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from ThinkSystem SR550 Rack Server.

How to Recover Lost Files from NAS Lenovo ThinkSystem SR550 Rack Server Storage

RAID Recovery™ 2.6
Recover data from damaged RAID arrays inaccessible from a computer.
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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 Lenovo 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 virtualization technologies impact data loss risks in NAS Lenovo ThinkSystem SR550 Rack Server devices?

Yes, virtualization technologies can impact data loss risks in NAS Lenovo ThinkSystem SR550 Rack Server devices. By implementing virtualization technologies such as VMware or Hyper-V, you can create virtual machines (VMs) on the server, which can help isolate and protect data.

Virtualization allows for the creation of multiple VMs, each with its own operating system and applications, running on a single physical server. This isolation helps to prevent data loss in case of hardware failures or software issues. If one VM experiences data loss, the others remain unaffected.

Additionally, virtualization provides features like snapshots, which allow you to take point-in-time backups of VMs. Snapshots can be used to recover data in case of accidental deletion or corruption.

Furthermore, virtualization technologies often include advanced features like high availability and fault tolerance, which can help minimize downtime and data loss risks. These features allow for automatic failover to another server or VM in case of hardware or software failures.

Overall, virtualization technologies can enhance data protection and reduce data loss risks in NAS Lenovo ThinkSystem SR550 Rack Server devices by providing isolation, backup capabilities, and advanced features for high availability and fault tolerance.

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

Although NAS ThinkSystem SR550 Rack Server 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.

    Go to view
    How to Order Remote Data Recovery

    How to Order Remote Data Recovery

Restoring data with Hetman RAID Recovery

Hetman Raid Recovery

This program recovers data from damaged RAID arrays and is fully compatible with Lenovo ThinkSystem SR550 Rack Server. 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.

Go to view
How to recover data from a Lenovo

How to recover data from a Lenovo

ThinkSystem SR550 Rack Server has 16 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 ToolsSave 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.

    Hetman Raid Recovery: Image Creation Wizard
  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.

    Hetman Raid Recovery: hoose any disk connected to this PC, or save the image by FTP

Where are user’s files stored?

The Lenovo ThinkSystem SR550 Rack Server network-attached storage keeps LifeLine 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

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Comments (3)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 9.08.2022 12:31 #
    If you want to ask a question about data recovery, from NAS ThinkSystem SR550 Rack Server, feel free to leave a comment!
  • Jaxon Every
    Jaxon Every 22.08.2023 11:45 #
    Are there any limitations on the size of data that can be recovered from a NAS Lenovo ThinkSystem SR550 Rack Server device?
    • Hetman Software
      Hetman Software 22.08.2023 12:59 #

      The limitations on the size of data that can be recovered from a NAS Lenovo ThinkSystem SR550 Rack Server device would depend on several factors, including the specific model and configuration of the server, the capacity of the storage drives installed, and the capabilities of the data recovery tools and techniques being used.

      In general, NAS devices like the Lenovo ThinkSystem SR550 Rack Server are designed to handle large amounts of data, and the capacity of the storage drives can be scaled up to meet the needs of the user. These servers often support multiple drive bays and can accommodate high-capacity drives, allowing for significant storage capacity.

      However, the process of data recovery can be influenced by various factors such as the file system used, the condition of the storage drives, and the complexity of the data loss scenario. In some cases, the size of the data being recovered may not be a limitation, but rather the availability of appropriate data recovery software or services that can handle the specific NAS device and file system.

      It is recommended to consult with a professional data recovery service provider or refer to the documentation and specifications of the specific Lenovo ThinkSystem SR550 Rack Server model for more detailed information on the limitations and capabilities related to data recovery.

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Vladimir Artiukh

Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Oleg Afonin

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as xaker.ru, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.

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Questions and answers

  • How does RAID technology enhance the data storage capabilities of the Lenovo ThinkSystem SR550 Rack Server when used in a NAS configuration?

    RAID (Redundant Array of Independent Disks) technology enhances the data storage capabilities of the Lenovo ThinkSystem SR550 Rack Server in a NAS (Network Attached Storage) configuration in several ways:

    1. Data Protection: RAID technology provides data redundancy and protection against disk failures. The SR550 supports various RAID levels such as RAID 0, 1, 5, 6, and 10. These levels distribute data across multiple disks, allowing for data recovery in case of disk failure. This ensures that data remains accessible and minimizes the risk of data loss.
    2. Performance Improvement: By using multiple disks in an array, RAID technology can improve the performance of the storage system. RAID 0, for example, stripes data across multiple disks, allowing for parallel read and write operations, resulting in faster data access and transfer speeds. This is particularly beneficial in NAS configurations where multiple users access data simultaneously.
    3. Scalability: The SR550 server supports multiple drive bays, allowing for the expansion of storage capacity. RAID technology enables the addition of new disks to the array without the need to reformat or reconfigure the existing data. This makes it easy to scale up the storage capacity of the NAS configuration as the data requirements grow.
    4. Flexibility: Different
  • What RAID levels are supported by the Lenovo ThinkSystem SR550 Rack Server, and how do they impact the performance and data protection features of the NAS solution?

    The Lenovo ThinkSystem SR550 Rack Server supports the following RAID levels:

    1. RAID 0: This level offers striping without data redundancy. It provides improved performance by distributing data across multiple drives, but there is no data protection. If one drive fails, all data is lost.
    2. RAID 1: This level provides mirroring, where data is duplicated across two drives. It offers excellent data protection as one drive can fail without any loss of data. However, it does not offer improved performance.
    3. RAID 5: This level uses striping with distributed parity. Data and parity information are distributed across multiple drives. It offers a balance between performance and data protection. If one drive fails, the data can be rebuilt using the parity information.
    4. RAID 6: Similar to RAID 5, RAID 6 also uses striping with distributed parity. However, it provides additional fault tolerance by using two parity blocks instead of one. It can withstand the failure of two drives simultaneously.
    5. RAID 10: This level combines mirroring and striping. It offers both improved performance and data protection. Data is mirrored across two sets of drives and then striped across those sets.

    The choice of RAID level impacts both performance and data protection. RAID 0 provides

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