RAID Data Recovery – How It Works

June 14, 2018

laptop-data-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 resulted in substantial data loss, more often than not, somebody’s job is on the line if that data is not recovered. The biggest 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’t be duplicated. The intellectual value alone could be in the many millions of dollars. Corporate executives really don’t care to hear about how the failure occurred, or what unbelievable string of events led up to the server crashing. They don’t care to hear the technical jargon as you try to explain to them what happened, and hope they understand that it wasn’t 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 evaluation 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 haven’t suffered a RAID failure, what are you waiting for? Back up your data NOW.

25 Comments

  • moooochacho June 14, 2018 at 9:36 am

    Thanks for all the positive comments!, I'm not the best at videos and narrating and am happy it's helped some recover what they need. It is sad that we have been left to"fend" for ourselves with an expensive problem that was not our fault.
    Cheers!

  • johny james June 14, 2018 at 9:36 am

    Hi, mine worked too. Applied heat with my iron box above the finger print area for about 2 mts, and it came on. Thank you all for the helpful comments….

  • Krasimir Mitov June 14, 2018 at 9:36 am

    Does it work with fewer cores after doing that? Any negative impact in the long run for the phone?
    Thanks

  • Sato Kensuke June 14, 2018 at 9:36 am

    my N6P recovered this method. and next flashed N2G48B_4Cores.img to boot, it's reduced 8 cores to 4 cores, also antutu score down 90000 to 60000, but worked fine.

  • Tushar Trivedi June 14, 2018 at 9:36 am

    Like many others, I was super skeptical but it worked.. Dont know how long it will last.. thank you so much

  • Kirill Simin June 14, 2018 at 9:36 am

    I boiled a cup of water and put a towel over it, then put the phone on the towel for five minutes. It broke out of the loop. Thank you!

  • Harish T June 14, 2018 at 9:36 am

    It worked for me 🙂 Awesome Thanks Mate 🙂

  • Mounitha TIPIRNENI June 14, 2018 at 9:36 am

    It worked well for me 👌👌👌👍👍👍👍👍👍👍 Thank You 😊

  • natureman04 June 14, 2018 at 9:36 am

    How the fuck?

  • Harshang Chhaya June 14, 2018 at 9:36 am

    20 not working steel bootlooped

  • Abdul Razak Fakhouri June 14, 2018 at 9:36 am

    Thanks a lot! It worked! 10/10!!!

  • Aakarshan Bhardwaj June 14, 2018 at 9:36 am

    It worked…thanks man..It works with just any kind of heat…it restarts as soon as it cools down.Once I backed up my data I did factory reset and everything worked like a charm again.Thanks again.

  • Nehal SHAH June 14, 2018 at 9:36 am

    Thanks a lot mate it worked. I was thinking i was screwed cos i can't afford to miss it at my work but your trick just did the job. Thanks again

  • harry clay June 14, 2018 at 9:36 am

    thats fucking mad, mine was boot looped and saw all these different videos and this one works, i used a hair dryer for about two mins and bang

  • franky Kumuta June 14, 2018 at 9:36 am

    When wake up in morning, Nexus 6p was 0% charge in aircond room. can't turn on or charge. Tried charge more then 6 hours nothing happened. Hard reset wont work. Tried to change new battery, still doesn't work. Brought to Huawei customer service Centre, they said main board dead after check up. $250 to replace board. At home watched this video, then done just as in the video…. Voila… F$&!@'k mainboard working now and charging up. Thanks alot bro for save my $$$.

  • Jeff Solavei June 14, 2018 at 9:36 am

    My 6p just got the bootloop of death.

    I tried the method in this video, and just held it over a blowdryer for 3-5 mins or so. Instead of getting to the boot screen it just turns off completely. While the phone is hot it will not even turn on again into bootloop, but just stays totally dead until it cools off. After it cools it will turn on again but goes straight into bootloop again.

    Any help from anyone? Any ideas? Please help I have tons of files on the phone I need to get off!! :'(

  • WorldofLinux June 14, 2018 at 9:36 am

    It worked for me wow and i took less than a minute so i guess i have a good hairdryer

  • mikimaus yeah June 14, 2018 at 9:36 am

    Does any one of u guys tried to talk to Huawei service center? Are they catering this problem? Is there any hardware that needs to be replaced just to fix this issue?

  • Mindful Healthy Living, LLC June 14, 2018 at 9:36 am

    Darn, only lasted about 10 minutes and in the middle of trying to upload music, it went back😒

  • Mindful Healthy Living, LLC June 14, 2018 at 9:36 am

    Thanks so much! I used a hot hair dryer an had to prop it up bc it got too hot; took about 4-5 minutes. Def took a lot of stress off!! Now I can get back to studying for my pathology exam 🙂

  • Brad Bumgarner June 14, 2018 at 9:36 am

    This worked for me with a hairdryer. Any idea how long it will stay working before boot looping again. I think I have everything I need off of it. Need to contact Google now.

  • Demise June 14, 2018 at 9:36 am

    hey does this work for LG phones as well??

  • Osama Fayed June 14, 2018 at 9:36 am

    Hello every !!
    Could i heat the Phone by put it into a microwave .. Would it Help !!

  • m4xi June 14, 2018 at 9:36 am

    Thanks mooochacho but didnt work for me unfortunately. Tried it at least 5x, each time heating it up 20 mins, but it doesn't leave the boot loop. Very upsetting as I literally need it just for 3 mins to remain stable

  • Muthu Kumaran June 14, 2018 at 9:36 am

    It realy work thank u do much

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