6
drive, and later imaging passes apply slower, more precise settings in order to make
sure every possible bit of data is being extracted.
Timeout: length of pause after error encountered
Sector Skip: length of forward jump after read error or timeout encountered
2 pass (few or no defects)
: Works best for hard drives that do not have many
uncorrectable (bad) sectors.
Pass #1
Timeout:
20 seconds
Sector Skip:
1,000,000 sectors
Pass #2
Timeout:
60 seconds
Sector Skip:
0 sectors (no skip)
2 pass (micro timeouts):
Works best for certain hard drive models (for example IBM
and Hitachi) with many bad sectors.
Pass #1
Timeout:
8 seconds
Sector Skip:
1,000,000 sectors
Pass #2
Timeout:
2 seconds
Sector Skip:
0 sectors (no skip)
3 pass (moderate damage):
Extracts data quickly in first pass, and then slows down on
subsequent passes to optimize data extraction.
Pass #1
Timeout:
20 seconds
Sector Skip:
1,000,000 sectors
