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<!doctype HTML public "-//W3C//DTD HTML 4.0 Frameset//EN"> <html> <head> <title>System and Data Protection</title> <meta http-equiv="Content-Type" content="text/html; charset=windows-1252"> <meta name="generator" content="RoboHelp by eHelp Corporation www.ehelp.com"> <link rel="stylesheet" href="default_ns.css"><script type="text/javascript" language="JavaScript" title="WebHelpSplitCss">  </script> <style type="text/css">  </style><style type="text/css">  </style><script type="text/javascript" language="JavaScript">  </script> <script type="text/javascript" language="JavaScript" title="WebHelpInlineScript">  </script> <style type="text/css">  </style><script type="text/javascript" language="javascript1.2" src="whmsg.js"></script> <script type="text/javascript" language="javascript" src="whver.js"></script> <script type="text/javascript" language="javascript1.2" src="whproxy.js"></script> <script type="text/javascript" language="javascript1.2" src="whutils.js"></script> <script type="text/javascript" language="javascript1.2" src="whtopic.js"></script> </head> <body lang="EN-US"><script type="text/javascript" language="javascript1.2">  </script><SCRIPT type="text/javascript" x-save-method="compute-relative" src="./ehlpdhtm.js" name="EHELP_DHTM" language="JavaScript1.2"></SCRIPT> <h2>System and Data Protection </h2> <p>The data protection issue is a growing cause of worrying for more and more people today. Indeed, it is hardly to find a person who will be particularly happy when all precious information on the hard disk is irreversible lost as a result of its malfunction. So how this tragedy can be prevented?</p> <h3>File Backup versus Sector Backup</h3> <p>Since the advent of the computer age people were in the search of ways to guarantee data safety. As a result weÆve got now two principal approaches: the <i>file-based <A class="glossterm" href="javascript:kadovTextPopup(this)" id="HotSpot49067">backup</A><span class=glosstext style="display: 'none';" id=POPUP49067 > The term backup originates from the time when the best way to protect valuable information was to store it in form of archives on external media. It's become now a general notion to mean making duplications of data for protection purposes.</span></i> and the <i>sector-based backup</i>. The main difference between the two lies in the way data is treated.</p> <p> </p> <p>A sector-based backup operates with an image (or a snapshot) of the whole disk system or its separate partitions. It not only includes the contents of all user-made files, but additionally contains the exact structure of directories, information about file allocation, file attributes and other related data. Thus it enables to successfully process system or encrypted partitions of any file system type, no matter what kind of information they contain.</p> <p> </p> <p>In contrast, a file-based backup takes into account a file system structure and only functions on a file or folder level. So it is very efficient when archiving separate files or folders, but in no way will help you back up a system partition.</p> <p> </p> <p>You should understand pretty well that each of the two approaches is only good when properly chosen. In the comparison table below you can see when this or that approach will suit you at most.</p> <p> </p> <table class=NormalTable x-use-null-cells style="margin-left: 5.4pt; border: inset 1.0pt; x-border-left: 1px table-solid; x-border-top: 1px table-solid; x-border-right: 1px table-solid; x-border-bottom: 1px table-solid; border-collapse: separate; border-spacing: 3px;" cellspacing=3> <tr> <td bgcolor="#0070C0" width="261.7pt" class="whs1"> <p align="center" class="whs2"><b style="font-weight: bold;">Sector-Based Backup</b></td> <td bgcolor="#FFC000" width="3.65in" class="whs3"> <p align="center" class="whs2"><b style="font-weight: bold;">File-Based Backup</b></td></tr> <tr> <td colspan="2" bgcolor="#92D050" width="526.5pt" class="whs4"> <p align="center" class="whs2"><b style="font-weight: bold;">Merits</b></td> </tr> <tr> <td bgcolor="#92D050" width="261.7pt" class="whs5"> <p>It does not dependent on a particular file system. Thus it can successfully process system or encrypted partitions of any file system type, no matter what kind of information they contain.</td> <td bgcolor="#92D050" width="3.65in" class="whs6"> <p>Functioning on a file/folder level, it is ideal for archiving separate files or folders.</td></tr> <tr> <td bgcolor="#92D050" width="261.7pt" class="whs5"> <p>It can create an exact image of a partition, including its service data. Thus it is ideal for a backup/restore of a system partition or a fast deployment to a bunch of identical computers.</td> <td bgcolor="#92D050" width="3.65in" class="whs6"> <p>It enables to automatically build up contents of the future backup image by using an advanced system of filters.</td></tr> <tr> <td bgcolor="#92D050" width="261.7pt" class="whs5"> <p> </td> <td bgcolor="#92D050" width="3.65in" class="whs6"> <p>It allows archiving data of the same volume with different backup policies.</td></tr> <tr> <td bgcolor="#92D050" width="261.7pt" class="whs5"> <p> </td> <td bgcolor="#92D050" width="3.65in" class="whs6"> <p>It is easy and efficient when creating backup chains.</td></tr> <tr> <td colspan="2" bgcolor="#FF0000" width="526.5pt" class="whs7"> <p align="center" class="whs2"><b style="font-weight: bold;">Demerits</b></td> </tr> <tr> <td bgcolor="#FF0000" width="261.7pt" class="whs8"> <p>Resulted backup images may contain a lot of redundant data.</td> <td bgcolor="#FF0000" width="3.65in" class="whs9"> <p>It depends on a file system structure, so you wonÆt be able to process unknown file systems.</td></tr> <tr> <td bgcolor="#FF0000" width="261.7pt" class="whs8"> <p>It is ineffective when trying to maintain a backup chain, especially when little amount of data is being changed.</td> <td bgcolor="#FF0000" width="3.65in" class="whs9"> <p>It cannot be used to back up a system partition.</td></tr> <tr> <td bgcolor="#FF0000" width="261.7pt" class="whs8"> <p> </td> <td bgcolor="#FF0000" width="3.65in" class="whs9"> <p>It is much slower when processing large amount of data.</td></tr> </table> <h3>Backup Types</h3> <p>At the present moment the market is offering various types of backup imaging to meet the needs of any user. Besides supporting them all, our program offers a unique backup type, called <i>File Increment to a Sector Backup</i>.</p> <h4><a name=_Full_and_Differential></a>Full and Differential Sector Backups</h4> <p>A full sector-based backup image includes all contents of a partition or a hard disk at the moment of its creation. If you roll back your system to the initial state on a regular basis, thatÆs exactly what youÆre looking for. But if you want to have multiple backup archives of the same partition reflecting certain time stamps, unchanged data will inevitable be duplicated in all archives and take additional space on backup media. To tackle this issue there has been developed a supplementary technique called <i>Differential Sector Backup</i>.</p> <p> </p> <p>A differential archive only contains data changed since the time of creating a full archive, which forms a base (or a parental image) in this case, thus considerably saving your system resources. It is realized by the exact bit-wise comparison of the previous partition's data (saved in the parental image) with the current data (that is actually the partition itself). To restore this kind of backup you will require a full image and one of its differentials, what is very convenient.</p> <p> </p> <p><img src="db9_help_en060608Per_web.files/image007.jpg" width="510px" height="264px" border="0" class="img_whs10"></p> <p> </p> <table class=NormalTable x-use-null-cells style="border-collapse: collapse; border: none; x-border-left: 1px table-solid; x-border-top: 1px table-solid; x-border-right: 1px table-solid; x-border-bottom: 1px table-solid; border-collapse: separate; border-spacing: 0px; background-color: #33cccc;" bgcolor=#33CCCC cellspacing=0> <tr> <td width="44.6pt" class="whs11"> <p align="center" class="whs2"><b style="font-weight: bold;"><img src="db9_help_en060608Per_web.files/image002.png" width="45px" height="45px" border="0" class="img_whs12"></b></td> <td width="489.6pt" class="whs13"> <p><b style="font-weight: bold;">This function is only available for single primary and logical partitions.</b></td></tr> </table> <h4><a name=_Full_and_Incremental></a>Full and Incremental File Backups</h4> <p>A full file-based archive only contains files and folders. It is really efficient when backing up an e-mail database or particular documents, as no redundant data is processed. But if you care about maintaining a files history, you can benefit from one more supplementary technique called <i>Incremental File Backup</i>.</p> <p> </p> <p>An incremental archive only contains data changed since the time of creating a full or incremental file-based archive. It is smaller and takes less time to create, but you will require the initial full image and all of its incrementals to restore the latest point of this kind of backup.</p> <p> </p> <p><img src="db9_help_en060608Per_web.files/image009.jpg" width="502px" height="232px" border="0" class="img_whs14"></p> <h4><a name=_File_Increment_to></a>File Increment to a Sector Backup</h4> <p><i style="font-style: italic;">File Increment to a Sector Backup</i> is a unique technology on the market so far that bridges two principally different approaches of the data backup: the file-based backup and the sector-based backup. With its help you can now create a sector-based backup of your system to get it back on track in minutes in case of a virus attack or a hardware malfunction and then just make file-based incremental images to the previously created sector-based backup to keep updated only information that is critical for you. Thus you will considerably save your system resources.</p> <h3><a name=_Backup_Storage></a>Backup Storage</h3> <p>Our program supports all present day techniques of storing backup images. LetÆs take a closer look at them all to understand what kind of storage is able to provide better security:</p> <p> </p> <p class="whs15"><span style="font-size: 8.0pt; font-family: Wingdings;"><font size=1 style="font-size:8pt;">q<span style="font: 7.0pt 'Times New Roman';"><font size=1 style="font-size:7pt;"> </font></span></font></span>You can place a backup image to a local mounted or unmounted (without drive letter assigned) partition. Despite the fact that it is the most convenient way, try not to use it. You can delete your backup just by accident or lose it as a result of a hardware malfunction, or a virus attack;</p> <p class="whs15"><span style="font-size: 8.0pt; font-family: Wingdings;"><font size=1 style="font-size:8pt;">q<span style="font: 7.0pt 'Times New Roman';"><font size=1 style="font-size:7pt;"> </font></span></font></span>You can place a backup image to a special secured place on the hard disk called the Backup Capsule that has an independent system layout (e.g. a separate partition) and will stay operable should the active file system be damaged. To avoid an accidental removing or unauthorized access of the backup data, this partition is hidden and thus cannot be mounted in the operating system. However it wonÆt help you in case of a hardware malfunction.</p> <p class="whs15"><span style="font-size: 8.0pt; font-family: Wingdings;"><font size=1 style="font-size:8pt;">q<span style="font: 7.0pt 'Times New Roman';"><font size=1 style="font-size:7pt;"> </font></span></font></span>You can place a backup image to external media (CD/DVD) to guarantee a high level of data protection as long as the backup media is kept secure;</p> <p class="whs15"><span style="font-size: 8.0pt; font-family: Wingdings;"><font size=1 style="font-size:8pt;">q<span style="font: 7.0pt 'Times New Roman';"><font size=1 style="font-size:7pt;"> </font></span></font></span>Finally you can place a backup image to a network drive to stand a better chance of success in case of a hard disk failure. Moreover, by storing it on a special-purpose server you may be pretty sure nothing will happen to it;</p> <h3><a name=_Adaptive_Restore></a>Adaptive Restore</h3> <p><i style="font-style: italic;">Adaptive Restore</i> is a special technology that enables to successfully recover Windows Vista or 2008 Server to a different hardware configuration. It is based on the fact that these operating systems do not delete their distributive driver repositories after the setup, but simply make them inactive in the Windows Registry. So thanks to our technology these driver repositories can be made available during the restore procedure to let Windows Vista or 2008 Server automatically find and install any lacking driver with no action from your side required, what is very convenient.</p> <p> </p> <p>However you might face a situation when no driver has been found in the driver repository. So in this case you will have to provide an exact location of the required drivers or insert the Windows distributive CD/DVD, besides it is expected extra system restarts. Anyway your system will most likely be operable once again.</p> <p> </p> <p>LetÆs consider a number of situations when the Adaptive Restore feature can help you out: </p> <p> </p> <p class="whs15"><span style="font-size: 8.0pt; font-family: Wingdings;"><font size=1 style="font-size:8pt;">q<span style="font: 7.0pt 'Times New Roman';"><font size=1 style="font-size:7pt;"> </font></span></font></span>If you need to upgrade to newer hardware while keeping all your programs and settings intact;</p> <p class="whs15"><span style="font-size: 8.0pt; font-family: Wingdings;"><font size=1 style="font-size:8pt;">q<span style="font: 7.0pt 'Times New Roman';"><font size=1 style="font-size:7pt;"> </font></span></font></span>If you need to replace failed hardware and cannot find an exact match for your original system specifications;</p> <p class="whs15"><span style="font-size: 8.0pt; font-family: Wingdings;"><font size=1 style="font-size:8pt;">q<span style="font: 7.0pt 'Times New Roman';"><font size=1 style="font-size:7pt;"> </font></span></font></span>If you need to do a system testing to deploy a system backup image to a virtual machine or vice versa.</p> <p> </p> <table class=NormalTable x-use-null-cells style="border-collapse: collapse; border: none; x-border-left: 1px table-solid; x-border-top: 1px table-solid; x-border-right: 1px table-solid; x-border-bottom: 1px table-solid; border-collapse: separate; border-spacing: 0px; background-color: #33cccc;" bgcolor=#33CCCC cellspacing=0> <tr> <td width="44.6pt" class="whs11"> <p align="center" class="whs2"><b style="font-weight: bold;"><img src="db9_help_en060608Per_web.files/image002.png" width="45px" height="45px" border="0" class="img_whs12"></b></td> <td width="489.6pt" class="whs13"> <p><b style="font-weight: bold;">This feature is only available for the Linux/DOS <A class="glossterm" href="javascript:kadovTextPopup(this)" id="HotSpot33273">recovery media</A><span class=glosstext style="display: 'none';" id=POPUP33273 > is a CD/DVD disc, a USB flash card or even a floppy disk from which you can boot for maintenance or recovery purposes.</span> at the moment.</b></td></tr> </table> <div placeholder id="footer" class="whs16"> <p id=p39> </p> <p id=p40><img src="horiz_mustard_bg.jpg" x-save-file="TRUE" x-save-method="compute-relative" width="368px" height="5px" border="0" class="img_whs17"></p> <p id="p41" class="whs18">Copyright(C) 1998-2008 Paragon Technologie GmbH</p> <p id="p42" class="whs18">All rights reserved</p> </div> <script language="javascript1.2" type="text/javascript">kadovTextPopupInit('HotSpot49067','POPUP49067');</script><script language="javascript1.2" type="text/javascript">kadovTextPopupInit('HotSpot33273','POPUP33273');</script><script type="text/javascript" language="javascript1.2">  </script> </body> </html>