Re: [Bug-ddrescue] forcing logfile usage, and speed

[Antonio Diaz Diaz]

address@hidden wrote:
> Feature request:  Force logfile usage.
> Please make ddrescue throw an error and exit unless either a logfile has
> been specified, or a flag confirming no use of a logfile has been used.

I have added a warning to the manual stating how important the logfile 
is. Forcing its use seems a little radical to me.


> I'm also curious why I'm only getting 5 megabytes per second between a pair
> of drives on an SATA I (150 megabytes per second) controller.  I'm using
> -n, and -c 100000.  And I've had 131kB of (3) errors out of 225782MB
> so far.

5 MB/s is not a bad sustained speed for a copy from a failing drive. 
Yesterday for example, an user reported a speed of about 1 MB/s

The -c option can't increase the speed beyond certain limit. In fact you 
are using a very big value that forces ddrescue to allocate a 52 MiB buffer.


> It would also be nice if ddrescue started where it left off in the absence
> of a logfile.  

It would be nice, but how can it be done reliably?


Regards,
Antonio.