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How to recover deleted files from nas drive?

NAS Data Recovery


NAS are reliable storage storages. However, they still can fail. If you cannot access your data from the NAS, you can try to recover the data using special NAS recovery softwares. Generally, NAS data recovery involves removing the disks from the NAS, numbering them, Imaging them, then connecting the images to a PC, and extracting files using data recovery software.


Some of the most common NAS device include;

  1. LaCie
  2. Western Digital
  3. QNAP
  4. Synology
  5. Buffalo LinkStation and TeraStation
  6. NETGEAR ReadyNAS
  7. Iomega Storcenter
  8. Seagate BlackArmor
  9. Thecus
  10. btrfs-based NAS servers
  11. ASUSTOR

NAS data recovery using Free or Paid NAS Data Recovery Softwares
Most of these NAS recovery software operate the same. But some may be better than others depending with the features.

Here are the steps;

  1. Get the disks out of the NAS and number them.
    After disconnecting the hard drives from the NAS, you should label them with numbers based on their order when setting up ie 0, 1, 2 etc
  2. Take images of the disks and connect them to a PC.
    This is a standard practice when it comes to raid configuration. It’s best to work with images incase anything happened, you always take another image from the original storages. Any mistake on the original hard drives could render your data unrecoverable.
  3. Download and install NAS Data Recovery software
    Since most NAS devices use md-raid or LVM drivers to handle an array, when choosing a NAS recovery software make such you chose one that supports that.
  4. Select the NAS volume you need to recover and click Start.
    Most software’s will be able to automatically populate a volume of the raid data. You should select it and data should start showing.
    If you can’t see the array in the NAS Data Recovery Software, then you need to recover RAID configuration first. This process is complex and requires special skills. Without the right configuration, one can’t reconfigure the raid. It’s best to consult a professional data recovery company.
    In some case, the Hard Drives could be physically damaged. These faulty disks should not be connected to the PC. However, they should be repaired and an image taken. Raid systems such as Raid 0, require all disk to be available for the process to be successful.

Causes of NAS Failure;
This may happen due to a number of things. Here are some of the most common causes.
• Power outrage:
Power surges may easily lead to NAS failure. Power loss or fluctuation may cause the disk not to integrating to RAID.
• Defective NAS controllers:
Corrupt firmware, operating systems errors, incomplete configuration etc. can also lead to NAS errors.
• Overheating:
Overheating can lead to NAS failure. It’s always advisable to regulate room temperatures.
• User error:
Common errors such as accidental deletion of files and folder can lead to NAS or RAID data loss.
• Manual faults:
When drivers fail, this sometimes causes NAS failure.
• Other natural catastrophes such as fire or water damage or any other natural calamity may lead to NAS failure.

RAID DATA RECOVERY KENYA

RAID SYSTEMS
RAID stands for Redundant Array OF Independent Discs, which is a data storage technology that combines multiple physical disk drives into a single logical unit for the purpose of data redundancy or even both.
TYPES OF RAID SYSTEMS
1) Software RAID: RAID system that doesn’t require a dedicated hardware RAID controller. The RAID compatibility depends on the operating system. It applies whereby there is a single disk with two partitions; one to boot from and the other for data storage.
2) Hardware/Physical RAID: RAID controllers are required in this setup. This controllers support different levels of RAID and also specify the kinds of disks to be used in the array; SSD, SATA OR SAS.
LEVELS OF RAID
RAID 0: Consists of stripping, without mirroring of parity. The capacity of this level of RAID is the sum of all the disks in the set. Failure of one disk in the set causes loss of the entire RAID and the chances of data recovery are minimized.
RAID 1: Consists of data mirroring, without parity or stripping. Data is written identically to two or more drives therefore producing a mirrored set of drives in the set.
RAID 2: Consists of bit-level stripping whereby data is stripped in a way that each sequential bit is on a different drive.
RAID 3: Consists of byte-level stripping whereby data is stripped in a way that each sequential byte is on a different drive.
RAID 4: Consists of block-level stripping with dedicated parity whereby the read/write operations do not spread across all data drives.
RAID 5: Consists of block-level stripping with distributed parity whereby the parity info is distributed among all drives requiring all drives but one to be present to operate. Upon failure of a single drive, subsequent reads can be calculated from the distributed parity such that no data is lost.
RAID 6: Consists of block-level stripping with double distributed parity. This provides fault tolerance of up to two failed drives.
Nested (Hybrid) RAID: Many controllers allow RAID levels to be nested. The elements of RAID may be individual drives or arrays by themselves.

Note: Attempting to recover a RAID without an unexperienced data recovery specialist can put your critical data at further risk. When hardware malfunction is a component of the problem, permanent destruction of data can occur with failed recovery attempts.

With alot of experience on Raid recovery and through our advanced and up to date technology.East Africa Recovery Experts has the capacity and technical expertise required to solve complex, technically challenging RAID recoveries.

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