Here is the latest video released by Data Recovery Lab. It explains how you can deal with a data lost situation and where you can get help. Filed under: Apple Mac Data Recovery, Data Recovery, Hard Drive Recovery, RAID Data Recovery, USB Data Recovery
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How To Deal With Data Loss and Where To Get Help
RAID is an acronym for Redundant Array of Inexpensive Disks and refers to a RAID array. The hard drives can be connected together in certain combinations. Depending on the combination and configuration of the individual disks, different types of the RAID arrays are possible. The number of hard drives is also important .
RAID 0, strictly speaking is not actually a RAID system because there is no reliability or redundancy of hard drives built in. RAID 0 is rather used to double the writing speed of the hard disk. A file does not reside on just one hard drive but is synchronously written onto two or more hard drives. The more disks are used, the higher the write speed will be. In this type of RAID, the risk of a defective hard drive bringing down the entire RAID 0 array is greatly increased. To make the matters worse, recovering data from RAID 0 is extremely difficult and costly.
On the other hand, RAID 1 is the antithesis of the RAID 0 system. The stored data on one of the hard disks is is “mirrored” and lie on both hard disks simultaneously. If one of the hard drives, fails the other disk can take over without any loss of data.
The most commonly used RAID used in servers and high end system is RAID 5. All popular server use this type of server and redundancy and tolerance is built into the system. The RAID 5 system must at least have three disks. The hard drives must have the same size. When a file is written to a RAID 5 system, the data is split saved on 2 hard disks. The 3rd hard disk receives a checksum of the saved file. In this RAID configuaration, if one drive fails, the system immediately switches to the RAID system recovery and the checksum is calculated over the lost part. RAID 5 systems are often equipped with a hot-swap system. This system allows you to change the hard drives in a live environment. When the fualty hard disk is swapped with a new one, the server calculates the checksum and rebuilds the partition and thus data loss is prevented.If, however, 2 hard disks fail at the same time, we have a broken RAID system which is a huge problem. The recovery of the data gets very complex and the cost of a typical RAID 5 data recovery will run into a couple of thousand £s.
Data Recovery Lab specialises in recovery data from all types of Seagate and Maxtor hard disks as described above. If you have one of these hard disks and it has failed, do not hesitate to call 0207 516 1077 or use the contact form to get in touch with us.
In this video, a Data Recovery Lab technician explains how the process of data recovery works.
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How does data recovery work? — Part 1
Wondered how a data recovery company can make people happy? Here we explain that.
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Hard Drive Recovery: we are in the business of making people happy!
If you search for “data recovery software” in the Google search box, will be surprised to find hundreds and hundreds of websites and online shops trying to offer you “FREE” data recovery software. Almost all these developers or data recovery software marketeers claim their software does just magic and can bring all your lost and deleted data back from the dead!
At first sight, they claim the the data recovery software is absolutely “free” by which they actually mean it is free to “download and try”. When you download and install these applications, you will also realise that these recovery applications will scan your hard disk and find some files but when you hit the “recover” button, you will be asked to upgrade the free version and pay for the right data recovery tool. OK. you purchase the software and do a full scan and attempt to recover the data. But does actually work? You may be disappointed to know that the majority of these so-called “data recovery tools” are actually reverse-engineered or white label versions of other software developers with mixed capabilities in tackling data loss. Don’t be surprised if you are disappointed if you find out that after spending £60-£95 no data has actually been recovered. At this point, you wish you might have been better off to call a specialist data recovery company and save time and money.
Unfortunately the consequences of using a data recovery software application is unpredictable. Some are good and some others can make a successful data recovery just impossible. If your data is important, do NOT risk it by using a downloaded data recovery software as you may never your get data back.
DIY data recovery is not recommended in cases where critical data is involved and data loss can be disastrous in on business or personal level.