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Backup is way bigger than the drive itself

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Hi... I'm using ATI 10 with Windows xp pro . I have done a sector by sector back up of my C drive and I notice now this back up is 40 gb big but yet my C drive is only 9gb big . Why or How can a 9 gb drive turn out to be 40gb backup ? Thanks

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Given the strangeness of a 9GB drive I'd say that is the used space in your drive which is 40GB drive.

You selected sector-by-sector which tells TI to backup all of the partition including the unused space so you ended up with all 40GB archived. This method is really intended for a drive that is screwed up where you want to get everything off the drive. Although TI bypasses the filesystem when making archives it does extract some information from it such as being able to find all the in-use sectors so if the filesystem is bad you might want to use the sector-by-sector method. Actually, if TI finds a filesystem it can't make sense of either because of errors or it is unsupported it will automatically use sector-by-sector backup.

Uncheck the sector-by-sector box.

Thanks for the respond but I am still unclear here . First off its an 80 gb drive with 9 gb being used . Are you saying ATI is gathering unused space from the drive ? If so ? How can unused space be made into used space if their nothing there ? Thanks

If you selected the sector-by-sector option, ATI will copy all sectors (used or not) and then compress the result into a TIB file. Sometimes users think they have to check this option to get a sector level backup. This is not the case. A disk and partition image backup is done at the sector level. Only used sectors are backed up unless the user checks the sector-by-sector option in the backup options.

Oh Okay , thanks . Good to know . I just thought that was the safest or best way to perform a back up and yes I did selected that option .