Re: [Bug-ddrescue] Feature Request: Introduce parameter to skip "slow" (still readable) sectors during first pass, if reading speed is below x kByte/s

[Antonio Diaz Diaz]

Hello,

Felix Ehlermann wrote:
> 1) Minimum reading speed / jump threshold

I have a first implementation that treats slow areas just like partially 
damaged areas and skip over them in the first pass. It uses a new option 
(-a, --min-read-speed)(suggestions about what letter to use as short 
name are welcome).

"-a 0" jumps if current speed < (average speed / 10).
"-a N" jumps if current speed < N bytes/s. (where N > 0).
Default is not to jump over slow areas.

I expect to release a test version of ddrescue next week.


> 2) Jump size

Currently ddrescue uses the same jumping algorithm for slow areas and 
damaged areas. Lets see how well it works before adding yet another option.


> 3) Disable relocation of bad sectors?

I think Burkart and Kim have answered to this better than I can. :-)


> 4) Disable read-ahead

Try the -d, --direct option of ddrescue.


Best regards,
Antonio.