How to recover data from the RAID created using Dell controller

RAID arrays have long been firmly established as a popular solution for storing data and increasing the reliability of storing important information.

DELL RAID controllers provide high performance RAID array operation. They are equipped with processors of sufficient power, which, in combination with the optimal amount of buffer memory, allow servicing many disks included in the RAID array.

Main Dell controller models :

  • H755
  • H750
  • HBA355
  • HBA350
  • H350
  • H355

Using Dell controllers, you can create various types of arrays such as RAID 0, 1, 5, 6, 10, 50, 60 and some exotic ones.

Possible causes of data loss on an array created using a Dell controllerr

Incorrect rebuild - for example, when for some reason the rebuild was not completed correctly. It may be due to disk failure, or due to a sudden power loss.

Various malfunctions of the RAID controller - the controller may overheat and turn off, break down, take some disks offline, etc.

Logical failures - such failures are usually associated with file system errors or disk space layout errors. For example, a volume from an array begins to appear as “unallocated” or some disks are marked as “uninitialized”.

In all these situations, the user cannot access their data. To recover data yourself, you need to use a data recovery software that works with RAID. It should be noted that attempting to recover data yourself is often successful if the problem is not very complex.

How to recover data from Dell DIY

  1. Disconnect the drives from the Dell controller. Be sure to remember which drive was inserted into which connector from the Dell controller.
  2. Connect the drives from the Dell array to your computer. It is recommended to connect the drives directly to the motherboard. However, if there are not enough ports on the motherboard, you can use special USB-to-SATA adapters.
  3. Download, install and run ReclaiMe Free RAID Recovery, which is designed to restore array configuration, which includes such as block size, disk order, which disk is first?, start offset, parity pattern.
  4. Select all drives from the array and choose the needed scan option – Start RAID0, Start RAID5 or Other RAIDs.
    5. RAID5 recovery
  5. Wait until the program determines the array configuration.
    6. RAID recovery output options
  6. Then select the “Run ReclaiMe to recover files” option. If ReclaiMe File Recovery is not installed on your computer, you will be offered to download it. If the program is installed, it will immediately open in RAID recovery mode.
  7. In the ReclaiMe software window, select a volume from the array and click Start.
    8. ReclaiMe RAID mode
  8. Wait until you receive a message that “Initial scan is completed” and start checking the recovery result.
  9. If the data is displayed correctly in the Preview window, then buy an Ultimate license.
    10. ReclaiMe scans RAID
  10. Prepare additional space where you will copy the recovered data and save all the data you need.

If ReclaiMe Free RAID Recovery was unable to restore the array configuration or the recovered data is not displayed correctly, then please contact us and we will try to help.

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