QNAP synchronizing time stamps (FAT vs NTFS differences)

[photosnow]

I am trying to use ViceVersa to confirm that I have accurately synchronized my files between a computer and a NAS. I copied the files over to the NAS and then ran ViceVersa to verify. I deselected "Show Matched Folders" so that only the disparities would display.

I noted that all the files had copied but that they were displayed as NOT synchronized anyway. The file names were identical and the file sizes were identical, but the time stamps were not. They were 1 SECOND OFF.

I tried to manually synchronize the files one at a time (using a variety of protocols), and I got dialogs boxes that asked my permission to overwrite. Despite my acceptance, the time stamps remained 1 second in error and the files appear not to be synchronized still.

I am running Windows XP Pro on the source computer and a QNAP TS-459-Pro+ NAS.

What is the matter and how do I fix it? (Thanks for you consideration and help!)

[TGRMN Software]

Hello,

The difference is probably legitimate if the QNAP NAS is formatted as FAT32: it is a difference in the file systems. There is an incompatibility between FAT and NTFS file systems. FAT and NTFS are two file systems used by the Windows operating system. FAT, (V)FAT and FAT(32) maintain a file's timestamp to an accuracy of two seconds whereas NTFS is accurate to the millisecond. So when files are copied from an NTFS drive to a FAT drive or viceversa the timestamps can change by up to 2 seconds but the files remain the same. With ViceVersa you can work around this issue by activating the option "Ignore up to 2 seconds difference between files" in profile settings->comparison: all files with a timestamp difference up to 2 seconds will be considered as having the same timestamp.

thanks
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TGRMN Software Support
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