RAID Data Recovery – How It Works

April 16, 2018

recovery

RAID data recovery is probably one of the most complex processes any data recovery firm can perform. More often than not, the problems are compounded by the actions of the client prior to sending the drives in for recovery. Many users feel that it is important to try and recover the data themselves or repair the array through various system utilities, and this may be fine if the data is not critical. However, it has been our experience that when you have a RAID failure that has resolved in substantial data loss, more often than not, somebody's job is on the line if that data is not recovered. The largest piece of advise this article can provide in the event of a RAID failure: LEAVE IT ALONE.

IT professionals have a lot of pressure placed on them when a catastrophic system failure occurs. It is their job to make sure that all systems are up and running. Many times, out of panic, troubleshooting processes are initiated in order to correct the problem. Often times these processes only make a bad situation even worse, and in many instances they can render the data unrecoverable. Let's keep in mind what this data can consist of in an average corporate environment. You are probably dealing with information that cost many hundreds of thousands of dollars in labor and resources to create. Much of the data probably can not be duplicated. The intellectual value alone could have been in the many millions of dollars. Corporate executives really do not care to hear about how the failure occurred, or what unbelievable string of events led up to the server crashing. They do not care to hear the technical jargon as you try to explain to them what happened, and hope they understand that it was not your fault. They only want to know one thing … "Why was this data not backed up, and how can we get it back?"

Instead of taking chances on your own, call a data recovery professional. RAID data recovery can be expensive, but in most cases it is much less costly than trying to recreate the data that has been lost. There is a set procedure that most data recovery professionals follow when it comes to performing any recovery work. These procedures are followed and expanded upon when dealing with a RAID recovery. The first step of any RAID recovery is to make sure all of the drives are functional. In order to properly complete the recovery it is essential that all drives are fully functional (this is especially true with a RAID 0). This may involve taking any physically damaged drives into the clean room, in order to make the necessary repairs so that they function normally again. Once that is completed the next step is to make complete, sector-by-sector clones of every drive. This is not "Ghosting", but a very low-level process that allows the recovery technician to work around bad sectors, and have complete control over how the drive functions. During the cloning process, the original source drive that you sent in, is generally put in a "write protect" mode so that no data can be written to the drive. This insures that the original source data is not altered in any way.

Once the cloning process is complete, the original drives you sent in are set off to the side and are no longer touched. The actual recovery process is performed on the cloned copies, so nothing that is done during recovery can make the situation worse. After the drives are cloned, they will be loaded into an emmulator and destriped. Destriping is like taking the scattered pieces of a puzzle and putting them together neatly. Simply stated, destriping is taking the data scattered among the multiple drives that make up array and placing it onto a single destination drive. From there we have a single drive in which we can complete what we would consider to be a "normal" recovery. We can complete this process even at the multi-terrabyte level. If the damage to the stripe is not too severe, in most cases a complete rebuild of the directory structure and all associated data can be completed.

As mentioned earlier, RAID data recovery can be expensive. Depending on the company you contact the prices can vary considerably. Typically a RAID recovery can be priced anywhere from $ 800 to $ 3,000 per drive. A number of factors influence the cost, such as RAID type, file system, total size, situation of failure, etc. Many times attempt fees and assessment fees are charged if the data is unrecoverable. This is understandable due to the amount of time and resources required to perform a single RAID recovery. However, in most cases the costs involved in recovering the data are not even 1% of the data's overall value. If you are reading this article and you have not suffered a RAID failure, what are you waiting for? Back up your data NOW.

46 Comments

  • Rose Ochoa April 16, 2018 at 1:18 pm

    so what is being used as your white powder–you know?, the one you call precipitant(ADJ)

  • Ayesha gull April 16, 2018 at 1:18 pm

    can u tell what powder u use

  • Ashok Shakya April 16, 2018 at 1:18 pm

    i am happy to your work and thanks for making vidio

  • Lone Wolf April 16, 2018 at 1:18 pm

    But of course, the guy puts a precipitant in water covered with copper and dirt and he has gold, everything is normal …

  • Michael Rawnsley April 16, 2018 at 1:18 pm

    what is this solution has it a name

  • Michael Rawnsley April 16, 2018 at 1:18 pm

    hey use a plastic shovel from the brush and shovel set, you then have a pouring lip so you dont drop the pins

  • ajaz niyargir April 16, 2018 at 1:18 pm

    faist chemical last powder neme pil sir.

  • Koalacraft April 16, 2018 at 1:18 pm

    nitric acid is kind of expensive

  • Natsu Dragneel April 16, 2018 at 1:18 pm

    We remained in dark as the chemical components of the solution are not named.

  • Khasim Ali April 16, 2018 at 1:18 pm

    Which acid

  • Shobi Umer April 16, 2018 at 1:18 pm

    what is the instant gold removing solution and the other solution u mixed.. 🙂

  • Danielle Noriega Lee April 16, 2018 at 1:18 pm

    Hydrochloric acid + Nitric acid

  • pyro April 16, 2018 at 1:18 pm

    What is the powder that you added

  • stephen jam April 16, 2018 at 1:18 pm

    what kind of chemical is that?

  • Ayodeji Adeboye April 16, 2018 at 1:18 pm

    please what is that solution and how can one get the solution to use

  • Ayodeji Adeboye April 16, 2018 at 1:18 pm

    please what is that solution and how can one get the solution

  • itillbeme1 April 16, 2018 at 1:18 pm

    What was the weight of pins and cpu's when you started and what was the weight of the gold button when you finished??? How much time did this take???

  • Isaac Eshun April 16, 2018 at 1:18 pm

    Please which particuler solution? Is it hydrochloric acid or is it muriatic acid and hydrogen peroxide, then my last question is what kind of recipitant (pawder) did he added after desolving the gold into the solution.

  • Peter Marsh April 16, 2018 at 1:18 pm

    Hi, interesting video. I was thinking about gold plating objects and want to ask a question. Having recovered the gold from the parts where it is in the green solution, could this be used directly as my solution to electroplate a new part?

  • Justin Tyree April 16, 2018 at 1:18 pm

    what are the solutions you are using

  • m karina April 16, 2018 at 1:18 pm

    how many computers do you need to get that amount?

  • MARLUCI DA SILVA DUTRA April 16, 2018 at 1:18 pm

    Please, the product you used to precipitate, is sodium metabisulfite?

  • Mark Andi April 16, 2018 at 1:18 pm

    If the cpus and all of the pc parts were working, you would've gotten yourself much more money than just extracting gold from them

  • bicbot April 16, 2018 at 1:18 pm

    Reported. Get audio btw 🙂

  • Gerry Chemerys April 16, 2018 at 1:18 pm

    Have you sold the solution to anyone in the US?

  • Venu Vikranth April 16, 2018 at 1:18 pm

    what is liqids are useing one by one names pl

  • nofd1977 April 16, 2018 at 1:18 pm

    nice vid sir. Definitely subbed and im gonna shoot you an email to ask a few tech questions if you dont mind. thanks

  • Des Troya April 16, 2018 at 1:18 pm

    I wonder with all the material soaking in that acid, how pure is that final product.

  • Nandini Krishna April 16, 2018 at 1:18 pm

    which solution you used

  • Boy Watch April 16, 2018 at 1:18 pm

    amazing satagal

  • Gadget Gadget April 16, 2018 at 1:18 pm

    Advertisement.

  • Marcelo Goud April 16, 2018 at 1:18 pm

    I don't see how this is "easily"

  • raziserve April 16, 2018 at 1:18 pm

    It was awesome

  • Quintez Thompson April 16, 2018 at 1:18 pm

    is this on mute

  • vual grimoire April 16, 2018 at 1:18 pm

    What is the karat value of the gold you recover?

  • Nazeer Ahmed April 16, 2018 at 1:18 pm

    Dear Sir, I have dropped you an email hopefully you will reply, As Early As possible .Thanking you Sir.

  • Nazeer Ahmed April 16, 2018 at 1:18 pm

    Dear Sir, what is the name of this chemical in which these plated is dipped.And what is the power.Plz write me

  • Tracy Davis April 16, 2018 at 1:18 pm

    Iwent to site does not show how to make did send you email waiting on reply thank you

  • simon peter April 16, 2018 at 1:18 pm

    can I use this method for extraction of gold from artificial jewelry????

  • Dale Ball April 16, 2018 at 1:18 pm

    can someone tell me what pins would have gold in a computer

  • ededdynova April 16, 2018 at 1:18 pm

    So after buying the solutions, powders etc….assuming you already have all the other acid resitting equipment. Do u actually make a worth while profit? Or would u be better off to do a few extra hours a week at work?

  • Viper vids gaming plus April 16, 2018 at 1:18 pm

    Now I am serious about the solution used but honesty his email is in the comments about thirty times instead of asking in comments email the person please for the fact that asking the same thing five hundred times doesn't make it any better

  • Alex Burduk April 16, 2018 at 1:18 pm

    He :))) Dissolve gold with hydrochloric acid, also can Dissolve gold with Citric Acid +salt

  • Dalal Bani Jaber April 16, 2018 at 1:18 pm

    Greetings What is the solution, which put on the fingers

  • simon peter April 16, 2018 at 1:18 pm

    what's the name of this chemical in which these plated is dipped……..

  • simon peter April 16, 2018 at 1:18 pm

    what is this solution made from?
    Is it only the water of gold plateing?

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