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Dirty Shutdown Explained

The term “a dirty shutdown” does not necessarily cause loss of data, but it can make access to some of not all data impossible without the help of specialist data recovery hardware and experience.

Many drives that come in for recovery are often in a failed state because of a power glitch. In the case of a system drive a dirty shutdown and cause a slight head crash or with SSD corrupt the controller.

Many times it will result in a drive asking to be formatted. But the symptom is actually not one where a “software” recovery should be used. Dust or dirt on a drive although dirty in real sense does not necessarily mean the storage platters on HDD or NAND chip memory banks are affected by dust or dirt at the physical level, but at the sector level it can cause bad blocks, bad sectors and file corruption.

Any storage device from Internal SATA, SCSI and SAS to external drives (HDD, SSD, USB, CF, SD and NAS) can be affected by an abrupt disconnect of power and require data recovery. The term degraded drive or running in a degraded state is often used but can encompass various faults from electronic , firmware, storage media bad sectors and corrupt file systems to service area module damage and lost RAID members.

In the case of servers, SAN (storage area networks) a power failure can affect databases exchange EDB and SQL  even inside a VM /VHD or Lun and the term dirty shutdown can apply to the corruption or loss of tables or data within the database or virtual volume, virtual machine or virtual drive.

So if you have a dirty shutdown and lose access to critical data R3 can often restore all lost data, repair damaged files or corrupt virtual machines and virtual disks as well as recovering the physical disk.

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What Our Customers Say About Us

I have used R3 Data Recovery for the second time now in the last three years and have been exceptionally impressed from start to finish both times; from loosing all data from a failed usb memory stick to receiving an email stating all list of data had been recovered all within a few days.

Once I made the enquiry to R3 Data Recovery making them aware of my troubles; they organised the failed memory sticks collection by courier, got it back to their lab and got straight on with locating my lost data. On this second most recent occasion the file list was copied through to my email account following on with a file upload where I had difficulties installing and accessing the files to continue working on.

I made contact to a staff member called Andy at R3 data Recovery stating I had difficulties but after linking through the “Team Viewer” programme; in no time at all was my data file successfully uploaded and all files were accessible.

A true honest company that I will be strongly happy to recommend and would happily make contact with them if I face another major issue!

Thank you to all of you at R3 Data Recovery.

Leon R

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R3 Data Recovery Services are designed to meet the needs of businesses and home users requiring a fixed cost, highly successful data recovery solution.

R3 Data Recovery is rated (4.6) by 294 customer reviews on Reviews.co.uk

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​If your hard drive happens to fail, contact our team of experts. Our skilled professionals will be able to reliably recover data on your hard drive and provide industry-leading turnaround times which give you the confidence that's necessary to develop a solid, effective recovery plan.


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