Very slow file copy from C: to D: on server 2012

S

Siggy01

My D Drive crashed and I lost all my data files.

I installed a new 4 TB Seagate disk as the new D drive.

The backup files on C: were made by having previously copied the files through the file explorer so I am performing a copy/past (or cut/paste) folders from the C: to the D: drive in file explorer. The total size of all the files is about 1 TB.

The drives are not shared and hence network performance should not be an issue and I am the only user and there are no other processes running.

The first 30 seconds or so the copy/move speed is OK but then drops dramatically to fluctuate between 0 to 11 Mb/s and the progress bar tells me it will take more than 24 hrs!

I started copying a smaller folder 50 GB and 12 hrs later it is about 60% complete.

The disk cache had been disabled, I have now disabled the cache but no significant difference in performance.

The copy or move always starts fast but very soon slows down to a crawl.

Any suggestion to resolve will be greatly appreciated.

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