On Thu, Feb 3, 2011 at 3:07 AM, Gary Jennejohn <gljennj...@googlemail.com> wrote: > On Wed, 2 Feb 2011 22:02:11 +0100 > Ulrich Spörlein <u...@spoerlein.net> wrote: > >> On Wed, 02.02.2011 at 12:04:58 -0800, Xin LI wrote: >> > On 02/02/11 11:54, Alexander Best wrote: >> > > so far dd(1) with a bs=2048 finished after: >> > > >> > > 4676648960 bytes transferred in 1639.108763 secs (2853166 bytes/sec) >> > >> > Just curious - how will recoverdisk(1) perform? I haven't tried it >> > myself but it uses much larger window which could be faster. >> >> +1 for recoverdisk. I hacked it so that it will also cope with media >> that has weird sectorsizes like 2352 bytes. It is awesome for reading >> optical media now, thanks to retries, large read requests and the >> ability to save progress (so you can try the failing sectors in another >> drive). >> > > And are these hacks available to the general public somewhere?
I think recoverdisk already support using DIOCGSECTORSIZE to obtain underlying sector size and I don't think it's really needed to hack it? I think, maybe uqs@ mean one need to "hack" the CAM subsystem to make the system believe that DVD have sectorsize of 2352 bytes for some special purpose backup? Cheers, -- Xin LI <delp...@delphij.net> http://www.delphij.net _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
