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From: | Antonio Diaz Diaz |
Subject: | Re: [Bug-ddrescue] Weird behavior with options -d and -c |
Date: | Thu, 04 Dec 2008 17:10:56 +0100 |
User-agent: | Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.7.11) Gecko/20050905 |
xerces8 wrote:
Reading more sectors in one go gives higher transfer rates.
Unless you ask the kernel to read more sectors at a time that those that for some reason it can manage.
So why does ddrescue behave that way ? It gets a error response from kernel and assumes the sectors are unreadable ?
It assumes they are unreadable *as requested*. Later it will try to read them in smaller chunks (Splitting error areas...). What else could it do, discard the values you supplied and use its own ones?
Regards, Antonio.
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