How to confirm backup files are intact
How to confirm backup files are intact
Hello. What is the most effective method to confirm file integrity (checksums) during the copy process? I need to transfer over 100gb via USB, and previously, some JPG files broke despite normal size and thumbnail checks. The original files were fine, but copies showed partial display. Should I enable FreeFileSync for this task? I have set VerifyCopiedFiles Enabled to true in the GlobalSettings.xml file located at AppData\Roaming\FreeFileSync.
RoboCopy works well.
Additionally, the issue could stem from the USB connection or the target drive.
Do you use Windows? Consider looking for a file sync tool suitable for this task. One Windows application I've relied on for years is TreeComp, which offers excellent manual control over files in one directory and allows setting up binary content comparisons, though this may take a considerable amount of time.
Nevertheless, I notice Teracopy Pro and Beyond Compare are precisely what you require in this scenario. GsRichcopy360 consistently delivers reliable results for me when I must verify the exact match between source and destination. I utilize a function known as "byte-level replication," which compares both files and ensures that any modifications occur only where necessary, transferring just the changed sections.
For instance, if both source and destination contain specific markers like (a, b, c), the source will be updated to include those values followed by (d). This process keeps the destination file aligned with the original, similar to the source file after applying "byte-level replication."
I recommend using this method whenever I want to confirm the accuracy of a transfer. Additionally, these tools typically provide clear logs that can help identify any issues during the process.