Robocopy working differently on my new NAS


B

BeachGuy

I just installed a 1TB Netgear MS2110 NAS on my home network to replace the
USB drive I had been using for nightly backups with a robocopy batch file.
The USB backup worked fine, but was running out of space. The robocopy /MIR
parameter ensured that only files that changed since the last backup were
copied.

Using the new NAS, robocopy seems to think every file, whether changed or
not, is "newer", so it now recopies every file.

Is there some additional parameter or something else I need to do so that
robocopy will recognize and not recopy unchanged files?

I sure appreciate your help, -John
 
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P

Pegasus [MVP]

BeachGuy said:
I just installed a 1TB Netgear MS2110 NAS on my home network to replace
the USB drive I had been using for nightly backups with a robocopy batch
file. The USB backup worked fine, but was running out of space. The
robocopy /MIR parameter ensured that only files that changed since the
last backup were copied.

Using the new NAS, robocopy seems to think every file, whether changed or
not, is "newer", so it now recopies every file.

Is there some additional parameter or something else I need to do so that
robocopy will recognize and not recopy unchanged files?

I sure appreciate your help, -John

Have a look at these two switches:
/FFT :: assume FAT File Times (2-second granularity).
/DST :: compensate for one-hour DST time differences.
 

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