How to Retrieve Accidentally Deleted NAS Lenovo ThinkSystem SR635 Rack Server Files

Deleted ⭐ NAS files? Our guide provides the solutions you need for successful recovery.

How to Retrieve Accidentally Deleted NAS Lenovo ThinkSystem SR635 Rack Server Files

Lenovo ThinkSystem SR635 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 SR635 Rack Server.

How to Retrieve Accidentally Deleted NAS Lenovo ThinkSystem SR635 Rack Server Files

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.

Are there any specific industry regulations or compliance requirements to consider when securing data on NAS Lenovo ThinkSystem SR635 Rack Server devices?

When securing data on NAS Lenovo ThinkSystem SR635 Rack Server devices, there are several industry regulations and compliance requirements to consider, including:

  1. General Data Protection Regulation (GDPR): If you are handling personal data of European Union citizens, you need to ensure compliance with GDPR, which includes requirements for data protection, security, and privacy.
  2. Health Insurance Portability and Accountability Act (HIPAA): If you are dealing with protected health information (PHI) in the healthcare industry, you must comply with HIPAA regulations, which establish security and privacy standards for PHI.
  3. Payment Card Industry Data Security Standard (PCI DSS): If you are storing, processing, or transmitting credit card information, you need to comply with PCI DSS, which sets requirements for securing cardholder data.
  4. Sarbanes-Oxley Act (SOX): If your organization is publicly traded in the United States, you must comply with SOX regulations, which include requirements for data security and financial reporting.
  5. California Consumer Privacy Act (CCPA): If you handle personal information of California residents, you need to comply with CCPA regulations, which provide privacy rights and protections for California consumers.
  6. National Institute of Standards and Technology (NIST) guidelines: NIST provides a framework for securing information systems and offers guidelines, such as NIST Special Publication 800-53, which can help in securing data on NAS devices.

Additionally, it is important to consider any industry-specific regulations that may apply to your organization, such as the Federal Information Security Management Act (FISMA) for government agencies or the Family Educational Rights and Privacy Act (FERPA) for educational institutions.

It is recommended to consult with legal and compliance experts to ensure compliance with the specific regulations applicable to your industry and jurisdiction.

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

Although NAS ThinkSystem SR635 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 SR635 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 SR635 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 SR635 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 SR635 Rack Server, feel free to leave a comment!
  • Douglas Collings
    Douglas Collings 22.08.2023 10:44 #
    Can data recovery from a NAS Lenovo ThinkSystem SR635 Rack Server device be performed if there are issues with the network router or switch?
    • Hetman Software
      Hetman Software 22.08.2023 10:59 #

      Yes, data recovery from a NAS Lenovo ThinkSystem SR635 Rack Server device can be performed even if there are issues with the network router or switch.

      The network router or switch is responsible for connecting the NAS device to the network, but it does not affect the data stored on the NAS itself. If there are issues with the network router or switch, it may temporarily disrupt the access to the NAS device from other network devices, but the data will still remain intact on the NAS device.

      To perform data recovery from the NAS device, you can directly connect a computer or another device to the NAS using an Ethernet cable and access the NAS device's management interface to retrieve or transfer the data. This method bypasses the need for a functioning network router or switch.

      Alternatively, if the NAS device supports hot-swappable hard drives, you can remove the hard drives from the NAS and connect them to another computer or NAS device for data recovery.

      However, if the issues with the network router or switch are due to hardware failures or other issues that directly affect the NAS device itself, it may require troubleshooting or repairs to restore access to the data. In such cases, it is recommended to contact the technical support for the NAS device or consult a professional data recovery service.

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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

  • Can the Lenovo ThinkSystem SR635 Rack Server operate using Wi-Fi standard, or does it require a wired connection?

    The Lenovo ThinkSystem SR635 Rack Server does not have built-in Wi-Fi capabilities. It requires a wired connection using Ethernet for network connectivity.

  • What are the advantages and limitations of using Wi-Fi standard for operating the Lenovo ThinkSystem SR635 Rack Server?

    Advantages of using Wi-Fi standard for operating the Lenovo ThinkSystem SR635 Rack Server:

    1. Convenience: Wi-Fi allows for wireless connectivity, eliminating the need for physical cables and making it easier to connect and manage the server remotely.
    2. Mobility: With Wi-Fi, the server can be placed anywhere within the range of the wireless network, providing flexibility in server placement and reducing the constraints of physical connectivity.
    3. Cost-effective: Wi-Fi eliminates the need for additional networking infrastructure like Ethernet cables, switches, and routers, resulting in cost savings.
    4. Scalability: Wi-Fi networks can be easily expanded by adding more access points, allowing for scalability as the server infrastructure grows.
    5. Remote management: Wi-Fi enables remote management of the server, allowing administrators to monitor and control the server from anywhere within the network coverage area.

    Limitations of using Wi-Fi standard for operating the Lenovo ThinkSystem SR635 Rack Server:

    1. Speed and latency: Wi-Fi networks may not provide the same level of speed and low latency as wired connections, which can impact the performance of the server, especially in high-demand applications.
    2. Interference: Wi-Fi signals can be susceptible to interference from other electronic devices or physical obstructions, leading to signal degradation and potential connectivity issues.
    3. Security: Wi-Fi networks can be vulnerable to unauthorized access if not properly secured. Additional security measures like encryption and access control mechanisms need to be implemented to mitigate this risk.
    4. Limited range: The range of Wi-Fi signals is limited compared to wired connections. If the server is located far from the Wi-Fi access point, the signal strength may weaken, affecting the connectivity and performance.
    5. Reliability: Wi-Fi connections may experience intermittent disruptions or dropouts, which can impact the availability and reliability of the server.
    6. Bandwidth limitations: Wi-Fi networks have limited bandwidth compared to wired connections. In scenarios where high data transfer rates are required, a wired connection may be more suitable.
  • Are there any specific requirements or configurations needed to ensure a stable and secure Wi-Fi connection for the Lenovo ThinkSystem SR635 Rack Server?

    To ensure a stable and secure Wi-Fi connection for the Lenovo ThinkSystem SR635 Rack Server, there are a few requirements and configurations to consider:

    1. Network Interface Card (NIC): The server should have a compatible Wi-Fi NIC installed. Lenovo offers various options for wireless connectivity, such as PCIe Wi-Fi adapters. Ensure that the NIC supports the required Wi-Fi standards and encryption protocols.
    2. Wi-Fi Access Point: A reliable and secure Wi-Fi access point is essential for establishing a stable connection. The access point should support the same Wi-Fi standards as the server's NIC, such as 802.11ac or 802.11ax. It should also have robust security features like WPA2 or WPA3 encryption.
    3. Network Configuration: Configure the Wi-Fi network with appropriate security settings. Use a strong Wi-Fi password and enable encryption protocols like WPA2 or WPA3. Additionally, consider implementing MAC address filtering to restrict access to authorized devices only.
    4. Signal Strength and Interference: Ensure that the server is located in an area with good Wi-Fi signal strength. Avoid physical obstructions and interference sources like other electronic devices or walls that may weaken the signal.
    5. Firmware and Driver Updates: Keep the server's firmware and Wi-Fi driver up to date. Regularly check for updates on Lenovo's support website to ensure compatibility, stability, and security improvements.
    6. Monitoring and Security Measures: Implement network monitoring tools to detect and prevent unauthorized access or suspicious activities. Consider using a firewall or intrusion prevention system (IPS) to enhance security.

    By following these requirements and configurations, you can establish a stable and secure Wi-Fi connection for the Lenovo ThinkSystem SR635 Rack Server.

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