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Data Recovery > Terminology

Terminology

A Reference Of Useful Terms And Phrases

Just like most industries data recovery and IT in general have their own collection of phrases and terminology that can be quite confusing if you are unfamiliar with the industry.

So here at the data recovery companies directory we have put together a special section just for those looking to quest their thirst for knowledge.

The terminology section will be quite small to begin with but over time we will expand the section so it becomes a useful source of reference and becomes a handy database of useful terms and phrases together with an explanation of what they mean.
 
Computer Data Recovery Directory - UK directory of computer data recovery companies.  Reviews of UK Data Recovery Companies
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ABC Data Recovery Ltd
ABC Data Recovery Ltd
Abc Data Recovery Ltd, has developed since 2005 into one of the few high capacity Data Recovery Companies in the UK and Europe.   The team at Abc Data Recovery Ltd has an enviable reputation for successful recoveries and competitive pricing., The team is made up of dedicated data...
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Accidently Deleted Or Formatted Volumes
Recovering From Accidently Deleted Or Formatted Volumes    When you create a volume on a disk you reserve an area on the disk and then map it out according to the method the operating system uses to work out where it should store the files. To access the files you have to...
Apple Mac Time Capsule Data Recovery
Apple Mac Time Capsule Data Recovery
Apple’s Time Capsule is for many people a reliable form of backup for their Mac OS X data, but what happens when it goes wrong? There are many possible problems that could lead your secure, reliable, network attached device to fail or to stop access to your important data. ...
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Areal Density
What is Areal Density? Areal density is the number of bits per square inch of storage surface. Areal density is commonly used as a defining measure of potential storage density in hard drives. In theory the greater the density the greater the amount of storage that can be achieved on any given...
Backing Up Your Data: Ignore It At Your Peril
Backing Up Your Data: Ignore It At Your Peril
Backing Up Your Data: Ignore It At Your Peril No one wants data loss, but of all the internet wired people I know, I have yet to meet one who has not, at some point, lost important data. This is inevitable, and has nothing to do with the electronic age in particular. Think about it. Haven't you...
Calculating the failure rate of RAID 0
Calculating the failure rate of RAID 0
In this article I will try to explain why in the pursuit of a high performance Server, PC or Laptop we should consider carefully why RAID 0 (RAID Zero) should only be considered if combined with a suitable backup solution if the data is of any importance. As someone who relies on dozens of...
Can USB Data Recovery Be Recovered?
Can USB Data Recovery Be Recovered?
When you store important information on a USB device, you take the chance of losing that information. Losing data on a USB can be kind of a mystery, but there are companies out there that can help you get that data back. These companies use engineering that can recover your lost data over ninety...
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Clicking Hard Drive
My Drive Is Clicking What Should I Do? Hard drives can make a very interesting collection of noises depending on the problem and the make of the drive but invariably the prognosis is not good. If your storage device has one or more hard disk drives and your data becomes inaccessible, check...
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Data Conversion Services
Data migration requirement could arise for a number of different reasons but principally data migration or  data conversion is necessary when companies decide to change the way in which they use their applications, or if they change applications altogether. If one application, or system...
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Data Recovery Expert
What is a data recovery expert and when should you use one? Although there are many people who may claim to do data recovery the have a go data recovery practitioners and data recovery experts are simply miles apart not only in the experience they may have but also in the equipment they use...
Data Recovery Methods
Data Recovery Methods
Sometimes, due to unforeseen occurrences, it may become necessary to recover information from your hard drive. For instance, you computer may encounter problems and you need to recover documents. In many cases such data retrieval is quite possible. So, how exactly does data recovery work? ...
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DeepSpar Professional Data Recovery (PDR)
Introducing: The DeepSpar PDR System™ There is more to professional data recovery than technology! The DeepSpar Professional Data Recovery (PDR) System™ is a complete solution of knowledge, technology, methodology and business management tools that solves the everyday challenges...
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Defragment Hard Drive
How Do You Defragment A Hard Drive? Hard drive fragmentation is one of the prime causes of slow computers an a major contributor to unnecessary hard disk wear and tear and head usage. Unfortunately hard disk fragmentation is unavoidable due to the way the operating system works but that does not...
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Degraded Drive
What is A Degraded Hard Drive? Hard drive failures account for nearly 40 percent of data recovery requirements and one aspect of drive failure is hard drive degradation. Essentially a hard drive consists of a number (in most cases) of magnetised platters and heads to read the magnetic variations...
Failed Or Degraded Raid Arrays
Failed Or Degraded Raid Arrays
What Is A Failed or Degraded Raid Array? Raid 5 is where data and parity information are spread across at least 3 disk drives of the same size and type. Raid systems are prone to the normal disk errors which can cause a hard drive to go off line and hence the fault tolerence in the system...
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Fragmented Hard Drive
What is A Fragmented Hard Drive? A hard drive consists of a number of different blocks and sectors and this is where your data is actually stored. When you write data to the drive rather than place the data in s predetermined position the data is dropped almost randomly over the entire platter or...
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Guzik Spinstand
Spinstand by Guzik Many universities, research and development organisations and some data recovery companies use the Guzik Spinstand for R&D however its ability to perform any commercial data recovery has never been proven. Data Recovery companies in the UK that claim to perform data...
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Hard Disk Drive
What Is A Hard Disk Drive? A hard disk drive is known as a hard drive, hard disk or fixed disk drive. Hard drives have platters with magnetic surfaces that rotate rapidly. Digitally encoded data is stored on the platters and the hard drive is non-volatile, which means that the data...
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Hard Drive Fragmentation
Is A Fragmented Drive Bad? Hard Drive Fragmentation - A partially fragmented hard drive in itself is not a severe problem but it will slow down the performance of both writes to and writes from your hard disk. at first this will be barely noticeable especially on newer faster drives but...
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Hard Drive Head Crash
Is A Head Crash Bad? When it comes to your hard drive a head crash is a very serious matter and if you think you my have had one cease using the drive immediately if the drive contains valuable data and consult a data recovery expert. The disk is a standard spin speed drive (7200 rpm) are...
Hard Drive Platters
Hard Drive Platters
What Are Hard Drive Platters? A hard drive platter is essentially a disc made from aluminium or glass and ceramic substrate.  During the manufacturing process of the disc, a thin coating of various metallic alloys is deposited on the surface of the disc by a process called magnetic...
Hard Drive Repairs & Hard Drive Platters
Hard Drive Repairs & Hard Drive Platters
Why Certified Clean Rooms Are Essential For Hard Drive Repair A hard drive platter is essentially a disc made from aluminium or glass and ceramic substrate. During the manufacturing process of the disc, a thin coating of various metallic alloys is deposited on the surface of the disc by a...
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Hard Drive Speed
Are Larger Capacity Hard Drives Faster? Generally all other aspects of one drive compared to another being equal and no drive fragmentation the answer would generally be yes. If you can imagine that a drive is like a child’s roundabout. Whilst the roundabout is spinning at the same speed...
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Hard Drives Overheating
Overheating computers are a sure way to test even the newest hard drive and a principal cause of hard drive degradation and seized motor spindles. Even in the cleanest conditions and workplaces computers do tend to draw in a lot of dust and over a period of time this dust invariably begins to clog...
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Head Crash
What Happens When A Disk Head Crashes? A head crash can be one if not the most destructive of hard drive failures, but what happens when a disk head crashes? Inside your drive there are a number of rotating platters and even on the slower drives these are spinning at over 60 miles per hour!...
LC-Tech
LC-Tech
LC Technology offers hard drive recovery service for those times where recovery is needed beyond the capability of the end-user.   This can be for forensic recovery, data recovery or damage to the hard drive. Rates are based on a flat fee analysis of the drive and the amount of time...
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Logical Drive Failures
Data recovery jobs tend to fall into two distinct camps called logical and physical. The term physical is used to describe hard drive and media failures that can be classed as a mechanical failure of some sort but occasionally there is a crossover between the two. The term logical failure is...
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Maxtor Hard Drives
Maxtor like many computer technology companies is relatively young and began its life in 1982 and was founded by James McCoy, Jack Swartz, and Raymond Niedzwiecki who notably where all ex IBM employees. Maxtor decided to focus on hard drive capacity in it's early models as storage capacities at the...
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Online Data Backup
What is online backup? Anyone who uses or in particular works on a computer is going to need to understand about data backup, what it is, and why it is so important. When you backup your data, you are storing your files on a disk or other device that is completely separate from your primary...
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Physical Drive Failures
Hard drive data recovery services tend to fall in the main into two very distinct categories which are often expressed as physical and logical. Physical categories just as the name implies are problems that can affect storage media due to some form of mechanical failure. Often mechanical failures...
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Ruggedized Hard Drives
Computer systems of one shape or form are utilised in a number of different areas and although most of us will be familiar with our desktop or laptop computer systems which in most cases are used in very hospitable environments, computers are however also in daily use in many other arena's where...
Seagate Hard Drives
Seagate Hard Drives
Seagate was first founded in 1979 by Alan Shugart and Finis Conner and was originally called Shugart Technology and the companies first product was a 5mb hard disc which proved very popular at the time. Seagate was fortunate to secure a major oem contract with IBM for hard disc supply in its...
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Servers
What Is A Server? A computer which runs a server program and connects to a number of computer over a network is called a server.  CPU speed is not normally critical to a server, but high I/O throughput and fast network connections are important. Many servers utilise hardware redundancy,...
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Solid State Drives
What Is A Solid State Drive? Solid State Drives (SSD) are a storage medium for data which uses non-volatile NAND flash memory. And come in mainly three sizes :- 1.8 inch, 2.5 inch and 3.5 inch drives. The SSD has no moving parts and the seek time for data is negligible and are therefore faster...
SSD Utility Suite™
SSD Utility Suite™
LC Technology solves TRIM related issues for SSD’s, introduces “SSD Utility Suite™” Nottingham, United Kingdom –1st June, 2010 — LC Technology International , the leading provider of commercial and OEM image recovery technology and file system utilities for...
Understanding Linux Data Backup And Recovery
Understanding Linux Data Backup And Recovery
Linux provides numerous options for configuring storage, such as Logical Volume Management (LVM), Software RAID (metadisks), and many various filesystem types. After a full system failure, recovering a server to its previous configuration can be quite a daunting task. Also the cost involved to...
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USB Flash Drives
What Is A USB Flash Drive? A USB flash drive is a storage device which currently holds between 64Mb and 64GB of data. The type of memory used is NAND flash memory and connects to the computer via the USB port. They are rewriteable, reliable and compact. The flash drive contains a small printed...
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VM Machines File Fragmentation
VM machines file fragmentation. Technology has a funny habit of solving one problem but then highlighting another. A typical example of this is the emergence of virtual operating systems, that is an OS that runs on top of another OS. While there are many advantages to many computer users in...
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What Are Bad Sectors
Before trying to explain what is a bad sector it would be useful to understand what a sector is or how a drive is structured. In simplistic terms a drive platter or disk is divided into what is known as tracks. If you imagine looking at a tree trunk that had been felled, the rings of the tree could...
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What is a SAN
What is a SAN? Storage solutions tend to come with a variety of acronyms and unless you work in the IT industry these can sometimes be a bit confusing to say the least. SAN stands for storage area network and is a method of attaching remote (often offsite) storage components to local networks...
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What is Data Deduplication
What Is Data Deduplication? In any IT infrastructure over time a business will generate a huge amount of duplicate data in the form of e-mails, word files, presentations and so on. Whilst this is not too much of a problem if effective document management controls are in place it does have an...
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What Is Data Recovery
What Is Data Recovery Data recovery is necessary when the secondary storage media on which data is stored has failed or the file system prevents it from being mounted by the operating system. Hard drives, storage tapes, CD’s DVD’s and raid arrays are the most common types of ...
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What Is Hard Drive Smart
What Does Smart Do? Data on a hard disk is stored in a magnetised layer effectively on one of the drives internal platters. The internal platters are extremely sensitive and due to a number of different reasons including heat and or age the platter loses its ability to store data in various...
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What is NAS
What is NAS? NAS stands for network attached storage (not to be confused with SAN which is an external storage network). Unlike SAN NAS units are physically attached to a local network and are essentially self contained computers designed specifically for storage. A NAS will have a cut down...
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Why Do Hard Drive Sectors Go Bad
We all like to think of the good old days when all mechanical devices where over engineered and sometimes lasted a life time (and beyond) but hard drive do have a limited life expectancy and this often manifests as bad sectors. One of the reasons for bad sectors is that some areas of HDD, which...
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