How to recover data from Huawei OceanStor Pacific 9540 NAS

Is your network drive gone, and you are wondering what to do? Has a RAID system crashed, and your files are no longer accessible? Does your device display an error while booting? Have you accidentally rebuilt your RAID system? Are several hard disks out of order?

How to recover data from NAS Huawei OceanStor Pacific 9540

Huawei OceanStor Pacific 9540 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from OceanStor Pacific 9540.

How to recover data from NAS Huawei OceanStor Pacific 9540

Recover data from damaged RAID arrays inaccessible from a computer.

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

What is a NAS Huawei OceanStor Pacific 9540 (Network Attached Storage) device?

The Huawei OceanStor Pacific 9540 is a Network Attached Storage (NAS) device developed by Huawei Technologies. It is designed to provide high-performance, scalable, and reliable storage solutions for enterprise-level data management.

The OceanStor Pacific 9540 NAS device offers a large capacity and supports both file and object storage. It is equipped with advanced features such as data deduplication, compression, and encryption to optimize storage efficiency and data security.

With its distributed architecture, the OceanStor Pacific 9540 allows for seamless scalability, enabling organizations to easily expand their storage capacity as their data needs grow. It also supports various protocols including NFS, SMB, and S3, making it compatible with a wide range of applications and environments.

Overall, the Huawei OceanStor Pacific 9540 NAS device is designed to meet the storage demands of modern enterprises, providing high-performance, reliable, and scalable storage solutions for efficient data management.

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

Although NAS OceanStor Pacific 9540 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 Huawei OceanStor Pacific 9540. 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 Huawei

How to recover data from a Huawei

OceanStor Pacific 9540 has 36 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 Huawei OceanStor Pacific 9540 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

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 OceanStor Pacific 9540, feel free to leave a comment!
  • Jake Peel
    Jake Peel 26.08.2023 01:48 #
    What are the costs associated with data recovery from a NAS Huawei OceanStor Pacific 9540 device?
    • Hetman Software
      Hetman Software 26.08.2023 02:00 #

      The costs associated with data recovery from a Huawei OceanStor Pacific 9540 device can vary depending on several factors, including the severity of the data loss, the complexity of the recovery process, and the specific services required. However, here are some potential cost factors to consider:

      1. Evaluation Fee: Data recovery service providers may charge an evaluation fee to assess the extent of the data loss and determine if recovery is possible.
      2. Recovery Service Fee: The actual data recovery service fee can vary based on the complexity and time required for the recovery process. This fee may include labor costs, specialized tools, and expertise needed to recover the data.
      3. Replacement Hardware: In some cases, if the data loss is due to hardware failure, replacement parts or hardware may be required, which can add to the overall cost.
      4. Expedited Service: If you require urgent or expedited data recovery service, additional fees may apply.
      5. Additional Services: Depending on the specific situation, additional services such as forensic analysis, data extraction, or remote recovery may be necessary, which can incur additional costs.

      It is recommended to contact data recovery service providers directly to get a more accurate estimate of the costs associated with recovering data from a Huawei OceanStor Pacific 9540 device.

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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 the NAS Huawei OceanStor Pacific 9540 enhance the performance and scalability of a surveillance system compared to traditional storage solutions?

    The NAS Huawei OceanStor Pacific 9540 enhances the performance and scalability of a surveillance system compared to traditional storage solutions in several ways:

    1. High Performance: The OceanStor Pacific 9540 is designed to deliver high-performance storage capabilities specifically for video surveillance workloads. It supports high-speed data access, allowing for faster retrieval and analysis of video data. This ensures real-time monitoring and quick response times for critical surveillance applications.
    2. Scalability: The OceanStor Pacific 9540 offers exceptional scalability, allowing for easy expansion of storage capacity as the surveillance system grows. It supports massive storage capacities, enabling organizations to store and manage large volumes of video data over extended periods. This scalability eliminates the need for frequent storage upgrades, reducing costs and simplifying system management.
    3. Intelligent Data Management: The NAS solution incorporates intelligent data management features such as tiered storage and intelligent caching. These features optimize data placement based on access patterns and prioritize frequently accessed data for faster retrieval. This intelligent data management enhances system performance by reducing latency and improving overall efficiency.
    4. High Availability: The OceanStor Pacific 9540 ensures high availability of video surveillance data. It supports advanced RAID technologies, data replication, and snapshot capabilities, which provide data protection and minimize the risk of data loss. This ensures continuous access to video data, even in the event of hardware failures or system disruptions.
    5. Advanced Analytics: The OceanStor Pacific 9540 enables advanced analytics capabilities for video surveillance systems. It supports integration with AI algorithms and deep learning frameworks, allowing for real-time video analysis and intelligent video processing. This enhances the effectiveness of video surveillance by enabling proactive threat detection and automated event recognition.

    Overall, the OceanStor Pacific 9540 offers superior performance, scalability, data management, availability, and analytics capabilities compared to traditional storage solutions. It is specifically tailored to meet the demanding requirements of modern surveillance systems, ensuring optimal performance and efficiency.

  • What are the key features and capabilities of the NAS Huawei OceanStor Pacific 9540 that make it suitable for large-scale surveillance deployments?

    The Huawei OceanStor Pacific 9540 NAS (Network Attached Storage) has several key features and capabilities that make it suitable for large-scale surveillance deployments. These include:

    1. High scalability: The OceanStor Pacific 9540 supports up to 15 PB (Petabytes) of storage capacity, allowing for the storage of a massive amount of surveillance data. This scalability makes it ideal for large-scale surveillance deployments that generate a significant amount of video footage.
    2. High performance: The NAS is equipped with high-performance hardware components, including powerful processors and high-speed interfaces. This enables it to handle the demanding requirements of large-scale surveillance systems, such as real-time video streaming, video analysis, and data retrieval.
    3. High availability: The OceanStor Pacific 9540 incorporates advanced redundancy and fault-tolerant mechanisms to ensure high availability of data. It supports features like RAID (Redundant Array of Independent Disks) and erasure coding, which protect against data loss and ensure data integrity.
    4. Efficient data management: The NAS includes advanced data management features, such as data deduplication and compression. These technologies help reduce storage requirements and optimize storage utilization, making it more cost-effective for storing large amounts of surveillance data.
    5. Easy integration: The OceanStor Pacific 9540 is designed to seamlessly integrate with existing surveillance systems and applications. It supports industry-standard protocols like NFS (Network File System) and SMB (Server Message Block), allowing for easy integration into surveillance infrastructure.
    6. Scalable architecture: The NAS utilizes a distributed file system architecture, which enables it to scale horizontally by adding additional storage nodes. This scalability ensures that the storage capacity can be expanded as surveillance needs grow over time.
    7. Data protection and security: The OceanStor Pacific 9540 provides robust data protection and security features. It supports data encryption, access control mechanisms, and data backup solutions, ensuring the confidentiality and integrity of surveillance data.

    Overall, the key features and capabilities of the Huawei OceanStor Pacific 9540 NAS make it a suitable choice for large-scale surveillance deployments, offering high scalability, performance, availability, and efficient data management.

  • How does the NAS Huawei OceanStor Pacific 9540 ensure data security and reliability in a surveillance system, especially in high-demand scenarios with large amounts of video footage?

    The NAS Huawei OceanStor Pacific 9540 ensures data security and reliability in a surveillance system, even in high-demand scenarios with large amounts of video footage, through several key features:

    1. Data Encryption: The OceanStor Pacific 9540 supports various encryption algorithms, including AES and SM4, to protect data at rest and in transit. This ensures that video footage remains secure, even if the storage devices are compromised.
    2. Erasure Coding: The system utilizes erasure coding technology to protect against data loss. It divides data into multiple fragments, adds parity data, and distributes them across different drives or nodes. This enables the system to withstand multiple drive failures without losing any data.
    3. High Availability: The OceanStor Pacific 9540 supports active-active clustering, where multiple nodes work together to provide continuous access to data. In case of a node failure, the system automatically switches to another node, ensuring uninterrupted surveillance operations.
    4. RAID Protection: The system supports various RAID levels, such as RAID 1, RAID 5, and RAID 6, to protect against drive failures. This redundancy ensures that video footage remains accessible even if one or more drives fail.
    5. Data Integrity Check: The OceanStor Pacific 9540 performs regular data integrity checks to identify and correct any inconsistencies or errors in the stored video footage. This helps maintain the reliability and accuracy of the surveillance data.
    6. Scalability: The system is designed to scale seamlessly as the surveillance system grows. It supports the addition of more storage nodes or expansion units, allowing for increased capacity and performance without compromising data security or reliability.
    7. Data Deduplication and Compression: The OceanStor Pacific 9540 employs data deduplication and compression techniques to optimize storage utilization. This reduces the amount of storage space required for storing video footage, allowing for cost-effective storage while maintaining data integrity.

    Overall, the NAS Huawei OceanStor Pacific 9540 combines advanced security features, data protection mechanisms, and scalability to ensure data security and reliability in high-demand surveillance scenarios with large amounts of video footage.

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