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ddresacue going slowly - fixes?

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	ddresacue going slowly - fixes? by Al Grant :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Hi Folks, I am trying to run ddrescue on a disk with a few bad sectors. Evidently it has not encountered them yet as errors is still 0, but ddrescue is going very slowly: The data rate is averaging 43000B/S. I have tried -d - which is an invlid switch. I have tried -c 64 which didnt seem to help much. I am currently running it wiht sudo ddrescue -n -c 64 /dev/sdc /storage/test testlog I am also running it from a USB-IDE bridge and imaging to a disk attached to a PCI SATA controller card with disk attached..not sure if this migh tbe effecting speed? Any ideas? Cheers -Al
	Re: ddresacue going slowly - fixes? by Al Grant :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Sorry, I had installed ddrescue via the apt-get command which I didnt know installed a old version. Have downloaded and installed the latest verion which I had thought cured the problem, but infact when it gets to roughly 10g it slows down again. -Al Al Grant wrote: Hi Folks, I am trying to run ddrescue on a disk with a few bad sectors. Evidently it has not encountered them yet as errors is still 0, but ddrescue is going very slowly: The data rate is averaging 43000B/S. I have tried -d - which is an invlid switch. I have tried -c 64 which didnt seem to help much. I am currently running it wiht sudo ddrescue -n -c 64 /dev/sdc /storage/test testlog I am also running it from a USB-IDE bridge and imaging to a disk attached to a PCI SATA controller card with disk attached..not sure if this migh tbe effecting speed? Any ideas? Cheers -Al
	Re: ddresacue going slowly - fixes? by Al Grant :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Well it appears it was just going slowly through a bad part of the disk = it has completed. I do however have another query - i have a disk with errors - its doesnt show up in fdisk -l but fsdisk -l shows it as sdb. unrecognised partition table type no partitions found read input/output error - cannot read sector 0 Anything else I can try other than ddrescue -vn? Cheers -Al Sorry, I had installed ddrescue via the apt-get command which I didnt know installed a old version. Have downloaded and installed the latest verion which I had thought cured the problem, but infact when it gets to roughly 10g it slows down again. -Al Al Grant wrote: Hi Folks, I am trying to run ddrescue on a disk with a few bad sectors. Evidently it has not encountered them yet as errors is still 0, but ddrescue is going very slowly: The data rate is averaging 43000B/S. I have tried -d - which is an invlid switch. I have tried -c 64 which didnt seem to help much. I am currently running it wiht sudo ddrescue -n -c 64 /dev/sdc /storage/test testlog I am also running it from a USB-IDE bridge and imaging to a disk attached to a PCI SATA controller card with disk attached..not sure if this migh tbe effecting speed? Any ideas? Cheers -Al
	Re: ddresacue going slowly - fixes? by David Liana :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message You may want to try another program called teskdisk. It will scan your drive and guess at the partitions. It can re-write your partition table. Again, ymmv. ----- Original Message ----- From: "Al Grant" <bigal.nz@...> To: Bug-ddrescue@... Sent: Sunday, July 26, 2009 5:33:58 AM GMT -05:00 US/Canada Eastern Subject: Re: [Bug-ddrescue] ddresacue going slowly - fixes? Well it appears it was just going slowly through a bad part of the disk = it has completed. I do however have another query - i have a disk with errors - its doesnt show up in fdisk -l but fsdisk -l shows it as sdb. unrecognised partition table type no partitions found read input/output error - cannot read sector 0 Anything else I can try other than ddrescue -vn? Cheers -Al Al Grant wrote: > > Sorry, I had installed ddrescue via the apt-get command which I didnt know > installed a old version. Have downloaded and installed the latest verion > which I had thought cured the problem, but infact when it gets to roughly > 10g it slows down again. > > -Al > > > Al Grant wrote: >> >> Hi Folks, >> >> I am trying to run ddrescue on a disk with a few bad sectors. Evidently >> it has not encountered them yet as errors is still 0, but ddrescue is >> going very slowly: >> >> The data rate is averaging 43000B/S. >> >> I have tried -d - which is an invlid switch. >> >> I have tried -c 64 which didnt seem to help much. >> >> I am currently running it wiht sudo ddrescue -n -c 64 /dev/sdc >> /storage/test testlog >> >> I am also running it from a USB-IDE bridge and imaging to a disk attached >> to a PCI SATA controller card with disk attached..not sure if this migh >> tbe effecting speed? >> >> Any ideas? >> >> Cheers >> >> -Al >> >> > > -- View this message in context: http://www.nabble.com/ddresacue-going-slowly---fixes--tp24653969p24665325.html Sent from the Gnu - ddrescue mailing list archive at Nabble.com. _______________________________________________ Bug-ddrescue mailing list Bug-ddrescue@... http://lists.gnu.org/mailman/listinfo/bug-ddrescue _______________________________________________ Bug-ddrescue mailing list Bug-ddrescue@... http://lists.gnu.org/mailman/listinfo/bug-ddrescue
	Re: ddresacue going slowly - fixes? by Al Grant :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message I can confirm the findings of others - dont rescue to ntfs mounted drives with ntfs-3g. -Al David Liana wrote: You may want to try another program called teskdisk. It will scan your drive and guess at the partitions. It can re-write your partition table. Again, ymmv. ----- Original Message ----- From: "Al Grant" <bigal.nz@gmail.com> To: Bug-ddrescue@gnu.org Sent: Sunday, July 26, 2009 5:33:58 AM GMT -05:00 US/Canada Eastern Subject: Re: [Bug-ddrescue] ddresacue going slowly - fixes? Well it appears it was just going slowly through a bad part of the disk = it has completed. I do however have another query - i have a disk with errors - its doesnt show up in fdisk -l but fsdisk -l shows it as sdb. unrecognised partition table type no partitions found read input/output error - cannot read sector 0 Anything else I can try other than ddrescue -vn? Cheers -Al Al Grant wrote: > > Sorry, I had installed ddrescue via the apt-get command which I didnt know > installed a old version. Have downloaded and installed the latest verion > which I had thought cured the problem, but infact when it gets to roughly > 10g it slows down again. > > -Al > > > Al Grant wrote: >> >> Hi Folks, >> >> I am trying to run ddrescue on a disk with a few bad sectors. Evidently >> it has not encountered them yet as errors is still 0, but ddrescue is >> going very slowly: >> >> The data rate is averaging 43000B/S. >> >> I have tried -d - which is an invlid switch. >> >> I have tried -c 64 which didnt seem to help much. >> >> I am currently running it wiht sudo ddrescue -n -c 64 /dev/sdc >> /storage/test testlog >> >> I am also running it from a USB-IDE bridge and imaging to a disk attached >> to a PCI SATA controller card with disk attached..not sure if this migh >> tbe effecting speed? >> >> Any ideas? >> >> Cheers >> >> -Al >> >> > > -- View this message in context: http://www.nabble.com/ddresacue-going-slowly---fixes--tp24653969p24665325.html Sent from the Gnu - ddrescue mailing list archive at Nabble.com. _______________________________________________ Bug-ddrescue mailing list Bug-ddrescue@gnu.org http://lists.gnu.org/mailman/listinfo/bug-ddrescue _______________________________________________ Bug-ddrescue mailing list Bug-ddrescue@gnu.org http://lists.gnu.org/mailman/listinfo/bug-ddrescue