Re: [Bug-ddrescue] Available feature to test for drive prefailures?

[Antonio Diaz Diaz]

Paul L Daniels wrote:
> One thing I've noticed with almost all drives that I copy from old
> machines is that frequently there are zones where the bitrate drops
> notably but doesn't get classed as an error in ddrescue ( which is
> fine ).  Would it be possible to add a feature to ddrescue that lets
> you mark such zones in a log - or, more generically, log the whole
> copy process to another file for later review/examination?

If those zones have been read without error (even if slowly), ddrescue 
only can mark them as done. Logging the copy process to another file 
would be doable but, what do you expect to do with the information?


> I admit that I've already kludged a copy of 1.16 to dump the verbose
> info to stderr so I can then capture to a logfile.  I've also looked
> at the -a option but it seems that it invariably triggers on the
> start of the ddrescue process for some reason (ie, if I do  ddrescue
> -v -f /dev/sda /dev/null on a USB3 device it'll start with a low read
> rate for the first second and thus  it'll trip almost immediately
> with the -a option.

I have just announced 1.17-pre2, which ignores slow reads during the 
first 10 seconds. Hope this solves the problem with the -a option.


Regards,
Antonio.