Defrag multiple drives at the same time

An example of defragging multiple drives simultaneously (SATA or SCSI)-

fsutil dirty query c:
fsutil dirty query d:
fsutil dirty query f:
fsutil dirty query g:
fsutil dirty query h:
defrag c: d: f: g: h: /M /X
defrag c: /T
Defrag d: /T
Defrag F: /T
defrag g: /T
defrag h: /T

The options for Defrag.exe are:

  • /X Perform free-space consolidation.
  • /T Track an operation already in progress on the specified volume.
  • /M Defragment multiple volumes simultaneously, in parallel.

An example of a local single drive using –

defrag c: /X and /T


About TCAT Shelbyville IT Department

The Tennessee College of Applied Technology - is one of 46 institutions in the Tennessee Board of Regents System, the seventh largest system of higher education in the nation. This system comprises six universities, fourteen community colleges, and twenty-six Applied Technology Colleges.
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