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	<title>Data Recovery Zone Hard Drive Repair Services &#187; hard drive failures</title>
	<atom:link href="http://www.datarecoveryzone.com/tag/hard-drive-failures/feed" rel="self" type="application/rss+xml" />
	<link>http://www.datarecoveryzone.com</link>
	<description>Data Recovery Zone Provides hard drive recovery services</description>
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		<title>Laptop Data Recovery Services</title>
		<link>http://www.datarecoveryzone.com/laptop_data_recovery.htm</link>
		<comments>http://www.datarecoveryzone.com/laptop_data_recovery.htm#comments</comments>
		<pubDate>Fri, 30 May 2008 18:40:20 +0000</pubDate>
		<dc:creator>Victoria Stankard</dc:creator>
				<category><![CDATA[Data Recovery Services]]></category>
		<category><![CDATA[Laptop Data Recovery]]></category>
		<category><![CDATA[hard drive failures]]></category>
		<category><![CDATA[hard drive recovery]]></category>
		<category><![CDATA[hard drive technology]]></category>
		<category><![CDATA[laptop hardrive recovery]]></category>

		<guid isPermaLink="false">http://www.datarecoveryzone.com/?p=12</guid>
		<description><![CDATA[Data Recovery Zone specializes in laptop hard drive data recovery.
We have built custom equipment to handle the small parts ans specialized electronics found in laptop drives. Our custom jigs allow us to recover laptop hard disks that our competitors have found &#8220;unrecoverable&#8221;. One of the most common problems with notebook hard drives is &#8220;clicking.&#8221;
The clicking [...]]]></description>
			<content:encoded><![CDATA[<p><img src="../images/pixel.gif" border="0" alt="" width="15" height="1" /><em><strong>Data Recovery Zone </strong></em>specializes in <em><strong>l</strong><strong>aptop hard drive data recovery</strong></em>.</p>
<div style="padding: 10px;">We have built custom equipment to handle the small parts ans specialized electronics found in <em>laptop drives</em>. Our custom jigs allow us to recover laptop hard disks that our competitors have found &#8220;unrecoverable&#8221;. One of the most common problems with notebook hard drives is &#8220;clicking.&#8221;</div>
<div style="padding: 10px;">The clicking sound is indicative of a head failure. The heads can no longer find track 0. They then go into a constant seek pattern, hence the clicking noise. We replace the heads in our clean room and can now recover your data! No other company has the experience or tools to recover laptop drives the <strong>Data Recovery Zone</strong> has. Call <strong>727-251-2058</strong> ( our toll-free number is at the top of every page) to speak with a representative and receive your quote over the phone. We answer our phones <strong>24 hours a day 7 days a week</strong>.</div>
<div style="padding: 10px;">Follow these <a href="../hard_drive_shipping_instructions.htm">instructions on how to package and ship a hard drive</a>. <em><strong></strong></em></div>
<div style="padding: 10px;"><em><strong>Data Recovery Zone</strong></em> does not charge for the evaluation of your media; furthermore, we do not participate in the &#8220;high/low&#8221; pricing quote model. (Typically between $500-$2,500.00) We have found that most companies tend to charge on the high end of the quote range. Some recovery companies also have a tendency to exaggerate turn around times . We understand that this can be a stressful time for you and believe that you should be fully informed in your recovery process.</div>
<div style="padding: 10px;">
<p>Laptop and notebook drives are much smaller and more fragile than their desktop cousins, consequently they require a more delicate and exacting touch to repair and recover. However, the steps listed above for what you, the user, can do to minimize further data loss remains basically the same, with the exception of:</p>
<ul>
<li>1. Unless the drive was designed to be removed by simply sliding out of the casing, do not attempt to remove it yourself.</li>
<li>2. If you can remove the drive easily, be sure not to put any undue stress on it by applying pressure to the housing on the drive.</li>
<li>3. Take extra care when packaging a laptop drive for shipping, so as not to incur any further damage before reaching one of our labs.</li>
</ul>
<p>If at all possible, remove the media from the computer. Get expert help if necessary. Send us just the hard drive(s), tape(s), floppy, jaz, zip, optical, flashcard, microdrive etc..</p>
<p>Handle a hard disk drive as you would handle an egg. Handle failed hard disk drives with the same care as new drives.</p>
<p>Use the original shipping materials, if you still have them. If not, they are relatively easy to replicate:</p>
<ol>
<li>Wrap media in an anti-static bag or tinfoil to prevent Static Electricity.</li>
<li>Use a box that is at least twice the size of the media so that the media can be suspended in the middle of the box. We recommend a minimum of two inches of insulation all around for a 1 Kilo drive.</li>
<li>Pack securely with foam, bubble wrap, or newspaper so the media will not move from the middle of the box. Avoid using peanuts as contents will settle to the bottom of the box.</li>
<li>If sending a computer, laptop or notebook, use great care to ensure proper cushioning and protection. We recommend at least 7 inches for insulation. The heavier the unit, the more insulation required.</li>
</ol>
<p><strong>Call 727-251-2058</strong> ( our toll-free number is at the top of every page) to speak with a representative and receive your quote over the phone. <strong>We answer our phones 24 hours a day 7 days a week.</strong></div>
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		<item>
		<title>Data Recovery Evaluation</title>
		<link>http://www.datarecoveryzone.com/data_recovery_evaluation.htm</link>
		<comments>http://www.datarecoveryzone.com/data_recovery_evaluation.htm#comments</comments>
		<pubDate>Wed, 28 May 2008 18:41:34 +0000</pubDate>
		<dc:creator>Victoria Stankard</dc:creator>
				<category><![CDATA[Data Recovery Services]]></category>
		<category><![CDATA[Add new tag]]></category>
		<category><![CDATA[data recovery]]></category>
		<category><![CDATA[hard drive failures]]></category>
		<category><![CDATA[hard drive recovery services]]></category>
		<category><![CDATA[hard drive technology]]></category>

		<guid isPermaLink="false">http://www.datarecoveryzone.com/?p=19</guid>
		<description><![CDATA[Data Recovery Zone offers a free no charge evaluation of all hard drive data recovery jobs! In fact our &#8220;No Data No Charge&#8221; policy means that we don&#8217;t get paid unless we recover your data!
Data Recovery Zone also offers Flat Rate Data Recovery Pricing on all single drive systems. For information on RAID systems click [...]]]></description>
			<content:encoded><![CDATA[<p><strong>Data Recovery Zone</strong> offers a free no charge evaluation of all hard drive data recovery jobs! In fact our <strong>&#8220;No Data No Charge&#8221;</strong> policy means that we don&#8217;t get paid unless we recover your data!</p>
<p><strong>Data Recovery Zone</strong> also offers <em>Flat Rate</em> <a href="http://www.datarecoveryzone.com/data_recovery_pricing.htm">Data Recovery Pricing</a> on all single drive systems. For information on <em>RAID systems</em> click here for <a href="http://www.datarecoveryzone.com/raid_data_recovery.htm">RAID Data Recovery Pricing</a>.</p>
<h2>The Recovery Process</h2>
<p><strong>Phone Consultation</strong> &#8211; Each recovery begins with a simple phone call to DRZ. One of our trained, professional recovery specialists will discuss your particular need.</p>
<p>To allow us to give the best possible service, please have on hand the make, model and manufacturer of the drive or media as well as a description describing the problem or failure occurring with your device. We will then give you an evaluation cost and ask for your daytime phone number, fax number and email address.</p>
<p>A RMA or job number will then be issued and shipping instructions given.</p>
<p><strong>Evaluation</strong> &#8211; The evaluation is where one of our recovery specialists carefully inspects your device or media arrive at an accurate diagnosis of the problem. While each evaluation is different depending on the type of damage and device or media being checked, an evaluation usually involves mechanical diagnostics, creating a sector copy, and assessing data integrity.</p>
<p>Upon completion, you will be informed of your data&#8217;s prognosis and if any parts will be necessary for a successful recovery. Evaluations begin within 12-24 hours of receipt of the device or media.</p>
<p><strong>Recovery &#8211; </strong>Only upon receiving your authorization will we proceed with the process of recovering your data from your device or media.</p>
<p>For mechanical damage, failed or compromised parts are replaced in a clean environment using exact replacement parts to ensure compliance with manufacturer warranty requirements. Specialized software is also employed to create an accurate image of your data. Some examples of parts that fail are read/write heads and assemblies, magnets, motors, and logic boards.</p>
<p>If there is no mechanical damage, or after the mechanical damage has been repaired, the next step is logical recovery. This type of recovery uses high-tech software to extract all possible data from the device or media by either repairing the low-level file system, extracting data from fragments found in the data image or both.</p>
<p>In the case of a malicious virus having caused the damage to the original data, great care will be taken to disinfect your system of the offending virus before restoring the data.</p>
<p>Once data has been extracted, it is then compiled and restored on the original or repaired device or media without voiding or nullifying any existing manufacturer warranty.</p>
<p>Our policy is to offer full disclosure on all that will be done and has been done throughout the recovery process. Recovery time typically ranges from 1-5 days depending on circumstances such as device or media capacity size, amount of data to recover, amount of physical repair required and complexity of file system.</p>
<p><strong>Call 727-251-2058</strong> ( our toll-free number is at the top of every page) to speak with a representative and receive your quote over the phone. We answer our phones <strong>24 hours a day 7 days a week</strong>.</p>
<p>Please follow any <a href="http://www.datarecoveryzone.com/hard_drive_shipping_instructions.htm">instructions on how to package and ship a hard drive</a>.</p>
]]></content:encoded>
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		<title>Fujitsu Data Recovery</title>
		<link>http://www.datarecoveryzone.com/ffujitsu_data_recovery.htm</link>
		<comments>http://www.datarecoveryzone.com/ffujitsu_data_recovery.htm#comments</comments>
		<pubDate>Wed, 28 May 2008 18:40:42 +0000</pubDate>
		<dc:creator>Victoria Stankard</dc:creator>
				<category><![CDATA[Data Recovery Services]]></category>
		<category><![CDATA[Fujitsu hard drive data recovery]]></category>
		<category><![CDATA[hard drive failures]]></category>
		<category><![CDATA[hard drive recovery]]></category>
		<category><![CDATA[hard drive technology]]></category>

		<guid isPermaLink="false">http://www.datarecoveryzone.com/?p=15</guid>
		<description><![CDATA[Fujitsu laptop drives generally fail with no warning whatsoever. We call it the &#8220;Fujitsu Sudden Death Syndrome&#8220;. It is almost always a fatal electronic failure although in certain circumstances it is a complete motor shutdown. Either way, Data Recovery Zone can repair the drive in our clean room and recover your data.
We offer upfront flat [...]]]></description>
			<content:encoded><![CDATA[<p><strong><em>Fujitsu laptop drives</em> </strong>generally fail with no warning whatsoever. We call it the &#8220;<em>Fujitsu Sudden Death Syndrome</em>&#8220;. It is almost always a fatal electronic failure although in certain circumstances it is a complete motor shutdown. Either way, <strong>Data Recovery Zone</strong> can repair the drive in our clean room and recover your data.</p>
<p>We offer <em>upfront flat rate pricing</em> as well as a <em>no data no charge policy</em>.</p>
<h2>Fujitsu MPG-MPF-AH data recovery</h2>
<p><strong>Fujitsu Data Recovery for MPG-MPF-AH hard disk drives. </strong><em>Fujitsu hard disks</em> are notorious for physical failure. We specialize in <em>Fujitsu hard drive data recovery</em>. Furthermore, we can even recover your drive remotely. We have developed and extensively tested all phases of <em>Fujitsu failures</em>.</p>
<p>There is no need to send your drive into a recovery lab for high priced data recovery or out of the country for<em> cheap</em> data recovery service.</p>
<h2>Fujistu Hard Drive Failure</h2>
<p>Here are the most common symptoms:</p>
<ul>
<li>Sudden failure of the hard disk drive.</li>
<li>Not recognized by the computer BIOS.</li>
<li>Recognized by the computer BIOS, however information given is incorrect or looks like garbage.</li>
<li>Inaccessible, but still physically functioning (powers up with no strange sounds).</li>
<li>Bios recognizes drive, however drive fail error appears.</li>
</ul>
<p>Flat rates, no hidden charges, no kidding! Get your data back right now, this minute. No shipping, no packing, no freight charges.</p>
<p>Call us at <strong>727-251-2058 </strong>( our toll-free number is at the top of every page) to speak with a representative and receive your quote over the phone. We answer our phones <strong>24 hours a day 7 days a week</strong>.</p>
<p>Please follow any <a href="../hard_drive_shipping_instructions.htm">instructions on how to package and ship a hard drive</a>.</p>
]]></content:encoded>
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		</item>
		<item>
		<title>Data Recovery Pricing</title>
		<link>http://www.datarecoveryzone.com/data_recovery_pricing.htm</link>
		<comments>http://www.datarecoveryzone.com/data_recovery_pricing.htm#comments</comments>
		<pubDate>Wed, 28 May 2008 18:40:32 +0000</pubDate>
		<dc:creator>Victoria Stankard</dc:creator>
				<category><![CDATA[Data Recovery Services]]></category>
		<category><![CDATA[data recovery pricing]]></category>
		<category><![CDATA[hard drive failures]]></category>
		<category><![CDATA[hard drive recovery]]></category>
		<category><![CDATA[hard drive technology]]></category>

		<guid isPermaLink="false">http://www.datarecoveryzone.com/?p=14</guid>
		<description><![CDATA[Data Recovery Zone offers flat rate up front pricing on single drive &#8211; hard drive recoveries.
All RAID/SAN/NAS or multi drive arrays are quoted with a range. After the free no-risk evaluation, a price is given up front, prior to work commencing. Certain situations require a minimum deposit to cover our time and expenses for cloning [...]]]></description>
			<content:encoded><![CDATA[<p><strong>Data Recovery Zone </strong>offers flat rate up front pricing on single drive &#8211; <em>hard drive recoveries</em>.</p>
<p>All<a href="../raid_data_recovery.htm"> RAID/SAN/NAS or multi drive arrays</a> are quoted with a range. After the free no-risk evaluation, a price is given up front, prior to work commencing. Certain situations require a minimum deposit to cover our time and expenses for cloning and setting up <em>RAID recoveries</em>.</p>
<p>All laptop, desktop, scsi, or any other single drive systems are quoted up front. We guarantee your data 100% <em>before</em> you pay us any money.</p>
<p>Call us at<strong> 727-251-2058 </strong>( our toll-free number is at the top of every page) to speak with a representative and receive your quote over the phone. We answer our phones <strong>24 hours a day 7 days a week.</strong></p>
<p>When shipping us your drive, please follow all <a href="../hard_drive_shipping_instructions.htm">instructions on how to package and ship a hard drive</a>.</p>
]]></content:encoded>
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		<title>MAC Apple Data Recovery Services</title>
		<link>http://www.datarecoveryzone.com/mac_data_recovery.htm</link>
		<comments>http://www.datarecoveryzone.com/mac_data_recovery.htm#comments</comments>
		<pubDate>Wed, 28 May 2008 18:40:08 +0000</pubDate>
		<dc:creator>Victoria Stankard</dc:creator>
				<category><![CDATA[MAC Data Recovery]]></category>
		<category><![CDATA[Apple Data Recovery]]></category>
		<category><![CDATA[hard drive failures]]></category>
		<category><![CDATA[hard drive recovery]]></category>
		<category><![CDATA[hard drive technology]]></category>

		<guid isPermaLink="false">http://www.datarecoveryzone.com/?p=13</guid>
		<description><![CDATA[Data Recovery Zone can deal with all of the MAC/APPLE Operating Systems.
Call us at: (727)-251-2058 to speak with a Mac representative.
File Systems
A file system is a structure that organizes large numbers of files on some sort of recording medium (most commonly a disk drive). The idea is to store the files on the disk so [...]]]></description>
			<content:encoded><![CDATA[<p><strong>Data Recovery Zone</strong> can deal with all of the MAC/APPLE Operating Systems.<br />
Call us at: <strong>(727)-251-2058<strong></strong></strong> to speak with a Mac representative.</p>
<h2>File Systems</h2>
<p>A file system is a structure that organizes large numbers of files on some sort of recording medium (most commonly a disk drive). The idea is to store the files on the disk so that they can be accessed randomly and with minimal time delay. The PC and Mac differ in the way they store files. These differences can make it difficult when copying files between platforms. Not all Mac files will be useful on a PC and vice versa. Executable program files compiled for one platform can not be used on the other, but there are many that have a separate version for each platform.</p>
<h2>Mac Files</h2>
<p>On a Mac each file can have two parts called forks &#8211; a data fork and a resource fork. These are actually two files linked to one name in the Mac file system. The resource fork holds resources (icons, fonts, menus, sounds, etc.). Since each resource fork can hold many resources, it has a specific structure that allows programs to find and access a particular resource quickly. The data fork can hold any type of data (text, images, etc.) and does not have a required a structure like the resource fork. Mac resource forks are generally of no use on the PC, but it is possible for a PC program to convert specific resources to a PC format. Our program CrossFont can do this with Mac fonts which exist in the resource fork. The contents of the Mac data fork is usually all that can be used on a PC. Once a Mac file is copied to the PC, the resource fork, type and creator information are lost unless the file is encoded with MacBinary or a similar format (HQX, SIT, etc.) that saves the Mac specific data with the file. This way the file can exist on a single fork machine (PC, UNIX) or be telecommunicated and decoded at the other end with all Mac information intact.</p>
<p>It is useful to have a way to identify the type of a file as well as which application created it. The Mac file system has this information stored with the file name and other information. They are two four character fields called the type and creator.</p>
<p>Mac programs can use many different types of files. The type field tells the program what type of data is in each file so it can parse it properly. It also allows a program to filter files in an open file dialog box so the user can only open files of a certain type. The creator field is unique for each Mac application. When an application creates a file, it puts a creator signature in this field which identifies that this application should be launched when a user double clicks on the icon of the file.</p>
<p><strong>Call (727)-251-2058 </strong>( our toll-free number is at the top of every page) to speak with a representative and receive your quote over the phone. We answer our phones <strong>24 hours a day 7 days a week</strong>.</p>
<p>When you ship us your drive, please follow any <a href="../hard_drive_shipping_instructions.htm">instructions on how to package and ship a hard drive</a>.</p>
]]></content:encoded>
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		<title>Desktop Data Recovery</title>
		<link>http://www.datarecoveryzone.com/desktop_data_recovery.htm</link>
		<comments>http://www.datarecoveryzone.com/desktop_data_recovery.htm#comments</comments>
		<pubDate>Wed, 28 May 2008 18:39:38 +0000</pubDate>
		<dc:creator>Victoria Stankard</dc:creator>
				<category><![CDATA[Desktop Data Recovery]]></category>
		<category><![CDATA[hard drive failures]]></category>
		<category><![CDATA[hard drive recovery]]></category>
		<category><![CDATA[hard drive technology]]></category>

		<guid isPermaLink="false">http://www.datarecoveryzone.com/?p=11</guid>
		<description><![CDATA[Desktop data recovery is for standard IDE drives.
If you have one of the following:

Mac Desktop Click Here,


laptop hard drive click here.


RAID data recovery click here.

Types of Data Recovery
Here is a brief explanation of the two types of data recovery. An explanation of how hard drives work or hard drive error codes are also available.

Physical Recovery [...]]]></description>
			<content:encoded><![CDATA[<p><strong><em>Desktop data recovery</em></strong> is for standard IDE drives.</p>
<p>If you have one of the following:</p>
<ul>
<li><a href="../mac_data_recovery.htm">Mac Desktop Click Here</a>,</li>
</ul>
<ul>
<li><a href="../laptop_data_recovery.htm">laptop hard drive click here</a>.</li>
</ul>
<ul>
<li><a href="../raid_data_recovery.htm">RAID data recovery click here.</a></li>
</ul>
<h2>Types of Data Recovery</h2>
<p>Here is a brief explanation of the two types of <strong><em>data recovery</em></strong>. An explanation of <a href="../How_hard_drives_work.htm">how hard drives work</a> or <a href="../types_of_hard_drive_failures.htm">hard drive error codes</a> are also available.</p>
<ul>
<li><strong>Physical Recovery</strong> &#8211; If your hard drive is clicking, clunking, thumping, whining, or making any other strange noises. If your hard drive suffered from a power surge, power failure, flooding, fire, or other disaster. Any of these things means your hard drive needs a physical data recovery. Stop what you are doing and us @<strong> 727-251-2058</strong>. We can help recover your data!</li>
</ul>
<ul>
<li><strong>Logical Recovery</strong> &#8211; If you accidentally formatted your drive, deleted a file, suffered from virus attack, then you have a logical problem. Give us a call, fill out this quote form, or if you want to try to recover the data yourself visit our <a href="../data_recovery_software.htm">data recovery software</a> page for downloadable programs.</li>
</ul>
<h2>Special Skills</h2>
<p>Some systems like RAID&#8217;s, SAN&#8217;s, NAS&#8217;s require special skills to recover or restore data. Data Recovery USA has the skills, experience, and equipment to recovery lost data from advanced server and backup systems.</p>
<h2>Handling of Media</h2>
<p>If at all possible, remove the media from the computer. Get expert help if necessary. Send us just the hard drive(s), tape(s), floppy, jaz, zip, optical, flashcard, microdrive etc&#8230; Handle a hard disk drive as you would handle an egg. Handle failed hard disk drives with the same care as new drives.<br />
Use the original shipping materials, if you still have them. If not, they are relatively easy to replicate:</p>
<h2>Preparing Media For Shipping</h2>
<ol>
<li>Wrap media in an anti-static bag or tinfoil to prevent Stacic Electricity.</li>
<li>Use a box that is at least twice the size of the media so that the media can be suspended in the middle of the box. We recommend a minimum of two inches of insulation all around for a 2 lb drive.</li>
<li>Pack securely with foam, bubble wrap, or newspaper so the media will not move from the middle of the box. Avoid using peanuts as contents will settle to the bottom of the box.</li>
<li>If sending a computer, laptop or notebook, use great care to ensure proper cushioning and protection. We recommend at least 6 inches for insulation. The heavier the unit, the more insulation required.</li>
</ol>
<p><strong>Call 727-251-2058</strong> ( our toll-free number is at the top of every page) to speak with a representative and receive your quote over the phone.</p>
<p><em><strong>We answer our phones </strong><strong>24 hours a day 7 days a week!</strong></em></p>
]]></content:encoded>
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		<title>How Hard Drives Work</title>
		<link>http://www.datarecoveryzone.com/how_hard_drives_work.htm</link>
		<comments>http://www.datarecoveryzone.com/how_hard_drives_work.htm#comments</comments>
		<pubDate>Wed, 28 May 2008 18:39:28 +0000</pubDate>
		<dc:creator>Victoria Stankard</dc:creator>
				<category><![CDATA[Knowledge Base]]></category>
		<category><![CDATA[hard drive failures]]></category>
		<category><![CDATA[hard drive recovery]]></category>
		<category><![CDATA[hard drive technology]]></category>

		<guid isPermaLink="false">http://www.datarecoveryzone.com/?p=10</guid>
		<description><![CDATA[Why are hard drives failing? Mainly it is is due to cheap parts assembled in sweat shots in the Philippines and Thailand, but excessive heat is a major problem especially where external hard drives are concerned.
DRZ can recover data from virtually any hard drive that hasn&#8217;t suffered major platter damage.
A hard drive has several mechanisms [...]]]></description>
			<content:encoded><![CDATA[<p>Why are hard drives failing? Mainly it is is due to cheap parts assembled in sweat shots in the Philippines and Thailand, but excessive heat is a major problem especially where external hard drives are concerned.</p>
<p>DRZ can recover data from virtually any hard drive that hasn&#8217;t suffered major platter damage.<br />
A hard drive has several mechanisms that make the technology of reading and the transfer of data from the platters possible.<br />
Platters</p>
<p>The hard drive can have one to several disks made of glass or aluminum coated with magnetic iron oxide particles. The disk(s) spins continuously very fast in the hda and the head can travel in and out along a radius so that any location can be reached very quickly by the head. A typical hard drive contains several of these 3.5-inch platters, which can contain tens of billions of individual bits. The higher the Ariel density of the hard disk&#8217;s platters, the more bits that can be packed into each square inch of platter real estate. A platter is segregated into tens of thousands of concentric tracks. Because allot of information can be stored in one track, the tracks are broken down into smaller units called sectors. Each sector can hold about 512 bytes of data, or 4096 bits. Disk platters are mounted in a stacked formation on a spindle A spindle motor turns the platters at very high speed, typically between 5,400 and 7,200 rotations per minute, but as fast as 15,000 rotations per minute(RPM&#8217;S). The platters spin so that the appropriate sector or sectors containing the data can be positioned underneath one of the drive&#8217;s reading heads. There&#8217;s one head per platter, and all the heads move in unison.</p>
<p>Heads</p>
<p>Each head in the hard drive is mounted onto a slider, which is mounted onto an arm. A mechanical device called an actuator controls each hard drive arm. The actuator moves the arm to the correct position on the spinning platter, which puts the head in the correct position. The reading head ( reading and writing heads are separate) floats about 2/1,000,000 of an inch above the disk surface. As it passes over the appropriate disk sectors, it interprets the magnetic pulses and converts them to electrical pulses that can be interpreted as 1s and 0s.</p>
<p>Although the head may look large, actually the sensitive part of the head is defined by micro lithographic methods so that the actual exposed portion of the head,which can either read or write the information on the disk,is very small-comparable to the dimensions of features on a microchip! As the manufacturing technology has improved over the years they have been able to shrink this area down to smaller and smaller sizes, and that is how the hard disk memories have risen to such large figures now. In addition they have increased the density of magnetic particles on the disk which makes the storage capacity larger. For example in 1991 the density of storage memory was about 0.l3 Gbits/square inch. In 1998 it was up to around 4 Gbits (30X the density!). At the same time the lithography limit of the sensitive head area was about 4.5 uMeters in 1991, and in 1998 was down to 0.5 uMeters, reduced by a factor of 9. So that is how the storage density of the disks is now up to 200 GB or higher. The information is stored in circular patterns on the disk and the location of the rings is measured by the computer and the spatial resolution is very high, so the location of the head to find data on the disk is exceedingly precise!</p>
<p>We hope this brief explanation of how a hard drive works has enabled you to understand the technology better.</p>
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		<title>Hard Drive Failures</title>
		<link>http://www.datarecoveryzone.com/types_of_hard_drive_failures.htm</link>
		<comments>http://www.datarecoveryzone.com/types_of_hard_drive_failures.htm#comments</comments>
		<pubDate>Wed, 28 May 2008 18:39:16 +0000</pubDate>
		<dc:creator>Michael Stankard</dc:creator>
				<category><![CDATA[Knowledge Base]]></category>
		<category><![CDATA[hard drive failures]]></category>
		<category><![CDATA[hard drive technology]]></category>

		<guid isPermaLink="false">http://www.datarecoveryzone.com/?p=9</guid>
		<description><![CDATA[Below are the most common error codes with failed hard drives. Call: (727) 251-2058 for 24 hour a day 7 days a week help if your hard drive has these error codes:
If you are experiencing any of the following errors then you may need data recovery!
Hard Drive/Ide Errors
1701 1702 1703 1704 1705 1706 1707 1708 [...]]]></description>
			<content:encoded><![CDATA[<p>Below are the most common error codes with failed hard drives. Call: (727) 251-2058 for 24 hour a day 7 days a week help if your hard drive has these error codes:</p>
<p>If you are experiencing any of the following errors then you may need data recovery!<br />
Hard Drive/Ide Errors</p>
<p>1701 1702 1703 1704 1705 1706 1707 1708 1709<br />
1710 1711 1712 1713 1714 1715 1716 1717 1718<br />
1720 1726 1730 1731 1732 1733 1735 1736 1737<br />
1738 1739 1740 1750 1751 1752 1753 1754 1755<br />
1756 1757 1780 1781 1782 1790 1791 Fixed disk general POST error<br />
Drive/controller time-out error Drive seek error<br />
Controller failed Drive sector not found error<br />
Write fault error Drive track O error Head select error<br />
Error Correction Code (ECC) error Sector buffer overrun<br />
Bad address mark Internal controller diagnostics failure<br />
Data compare error Drive not ready Track O indicator failure Diagnostics cylinder errors<br />
Surface read errors Hard drive type error Bad diagnostics cylinder Data compare error<br />
Controller error BIOS undefined error return Bad command error Data corrected error<br />
Bad track error Bad sector error Bad initialization error Bad sense error Drive verify failure Drive read failure<br />
Drive write failure Drive random read test failure Drive seek test failure Controller failure Controller Error Correction Code (ECC) test failure Controller head select failure Seek failure; drive 0 Seek failure; drive 1 Controller test failure Diagnostic cylinder read error; drive 0 Diagnostic cylinder read error; drive 1</p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;</p>
<p>ESDI Drive and Controller Error Codes<br />
10450 10451 10452 10453 10454 10455 10456 10461 10462 10463 10464<br />
10465 10466 10467 10468 10469 10470 10471 10472 10473 10480 10481<br />
10482 10483 10484 10485 10486 10487 10488 10489 10490 10491 10499 Read/write test failed<br />
Read verify test failed Seek test failed Wrong device type indicated Controller test failed sector buffer test<br />
Controller failure Controller diagnostic command failure Drive format error Controller head select error<br />
Drive read/write sector error Drive primary defect map unreadable Controller; Error Correction Code (ECC) 8-bit error Controller; Error Correction Code (ECC) 9-bit error Drive soft seek error Drive hard seek error Drive soft seek error count exceeded Controller attachment diagnostic error Controller wrap mode interface error Controller wrap mode drive select error Read verify test errors Seek failure; drive O Seek failure; drive 1 Controller transfer acknowledge error Controller reset failure<br />
Controller; head select 3 error Controller; head select 2 error Controller; head select 1 error Controller; head select O error<br />
Controller; read gate Controller; write gate Diagnostic area read error; drive 0 Diagnostic area read error; drive 1 Controller failure</p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;</p>
<p>SCSI Drive and Host Adapter Error Codes<br />
096xxxx<br />
112xxxx<br />
113xxxx<br />
210xxxx SCSI adapter with cache (32-bit) errors<br />
SCSI adapter (16-bit without cache) errors<br />
System board SCSI adapter (16-bit) errors<br />
SCSI fixed disk errors</p>
<p>Call: (727) 251-2058 for 24 hour a day 7 days a week help.</p>
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