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How can I automate ddrescue from a failing usb hard drive?
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I've got an interesting problem...
A friend asked me to recover data from a failing external (usb) hard drive, which i've been doing using the ddrescue utility. However, every few hours the drive stops responding (this is why I'm recovering the data) and read speed drops to 0. At this point if i unplug it for 5 mins and plug it back in I can rerun the ddrescue and continue recovering. Im wondering if there is some way to automate this as the read speed is quite slow and there is a lot of data to recover.
I can power down the drive using:
udisks --unmount /dev/sdd1
udisks --detach /dev/sdd
But I have not found a way to spin up the drive again after its been "detached"
The other problem I havent figured out yet is some way to figure out when the read speed has dropped to 0 and its time to do this powercycle.
Anyone have any ideas?
usb-drive automation data-recovery
asked Oct 17 '12 at 2:50
ZenshaiZenshai
1161
add a comment |
I've got an interesting problem...
A friend asked me to recover data from a failing external (usb) hard drive, which i've been doing using the ddrescue utility. However, every few hours the drive stops responding (this is why I'm recovering the data) and read speed drops to 0. At this point if i unplug it for 5 mins and plug it back in I can rerun the ddrescue and continue recovering. Im wondering if there is some way to automate this as the read speed is quite slow and there is a lot of data to recover.
I can power down the drive using:
udisks --unmount /dev/sdd1
udisks --detach /dev/sdd
But I have not found a way to spin up the drive again after its been "detached"
The other problem I havent figured out yet is some way to figure out when the read speed has dropped to 0 and its time to do this powercycle.
Anyone have any ideas?
usb-drive automation data-recovery
asked Oct 17 '12 at 2:50
ZenshaiZenshai
1161
2
Not what you asked for, but it sounds like a heat related problem. If you haven't already done so remove the drive from the case and run it externally (better ventillation) and see if that improves your up time
– fabricator4
Oct 17 '12 at 3:03
tried that, and tried removing the usb enclosure all together, connecting via SATA, neither helped.
– Zenshai
Oct 26 '12 at 21:28
add a comment |
I've got an interesting problem...
A friend asked me to recover data from a failing external (usb) hard drive, which i've been doing using the ddrescue utility. However, every few hours the drive stops responding (this is why I'm recovering the data) and read speed drops to 0. At this point if i unplug it for 5 mins and plug it back in I can rerun the ddrescue and continue recovering. Im wondering if there is some way to automate this as the read speed is quite slow and there is a lot of data to recover.
I can power down the drive using:
udisks --unmount /dev/sdd1
udisks --detach /dev/sdd
But I have not found a way to spin up the drive again after its been "detached"
The other problem I havent figured out yet is some way to figure out when the read speed has dropped to 0 and its time to do this powercycle.
Anyone have any ideas?
usb-drive automation data-recovery
asked Oct 17 '12 at 2:50
ZenshaiZenshai
1161
I've got an interesting problem...
A friend asked me to recover data from a failing external (usb) hard drive, which i've been doing using the ddrescue utility. However, every few hours the drive stops responding (this is why I'm recovering the data) and read speed drops to 0. At this point if i unplug it for 5 mins and plug it back in I can rerun the ddrescue and continue recovering. Im wondering if there is some way to automate this as the read speed is quite slow and there is a lot of data to recover.
I can power down the drive using:
udisks --unmount /dev/sdd1
udisks --detach /dev/sdd
But I have not found a way to spin up the drive again after its been "detached"
The other problem I havent figured out yet is some way to figure out when the read speed has dropped to 0 and its time to do this powercycle.
Anyone have any ideas?
usb-drive automation data-recovery
usb-drive automation data-recovery
asked Oct 17 '12 at 2:50
ZenshaiZenshai
1161
asked Oct 17 '12 at 2:50
ZenshaiZenshai
1161
asked Oct 17 '12 at 2:50
ZenshaiZenshai
1161
asked Oct 17 '12 at 2:50
ZenshaiZenshai
1161
asked Oct 17 '12 at 2:50
ZenshaiZenshai
1161
1161
2
Not what you asked for, but it sounds like a heat related problem. If you haven't already done so remove the drive from the case and run it externally (better ventillation) and see if that improves your up time
– fabricator4
Oct 17 '12 at 3:03
tried that, and tried removing the usb enclosure all together, connecting via SATA, neither helped.
– Zenshai
Oct 26 '12 at 21:28
add a comment |
2
Not what you asked for, but it sounds like a heat related problem. If you haven't already done so remove the drive from the case and run it externally (better ventillation) and see if that improves your up time
– fabricator4
Oct 17 '12 at 3:03
tried that, and tried removing the usb enclosure all together, connecting via SATA, neither helped.
– Zenshai
Oct 26 '12 at 21:28
2
2
Not what you asked for, but it sounds like a heat related problem. If you haven't already done so remove the drive from the case and run it externally (better ventillation) and see if that improves your up time
– fabricator4
Oct 17 '12 at 3:03
Not what you asked for, but it sounds like a heat related problem. If you haven't already done so remove the drive from the case and run it externally (better ventillation) and see if that improves your up time
– fabricator4
Oct 17 '12 at 3:03
tried that, and tried removing the usb enclosure all together, connecting via SATA, neither helped.
– Zenshai
Oct 26 '12 at 21:28
tried that, and tried removing the usb enclosure all together, connecting via SATA, neither helped.
– Zenshai
Oct 26 '12 at 21:28
add a comment |
1 Answer
1
active
oldest
votes
You could try usbctl or uhubctl.
Both tools are able to switch off/on usb ports if your usb chipset supports that.
After you switch off and on the port with the external disk, it should be recognized again.
answered 5 mins ago
vchrizzvchrizz
12
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1 Answer
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You could try usbctl or uhubctl.
Both tools are able to switch off/on usb ports if your usb chipset supports that.
After you switch off and on the port with the external disk, it should be recognized again.
answered 5 mins ago
vchrizzvchrizz
12
New contributor
vchrizz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
You could try usbctl or uhubctl.
Both tools are able to switch off/on usb ports if your usb chipset supports that.
After you switch off and on the port with the external disk, it should be recognized again.
answered 5 mins ago
vchrizzvchrizz
12
New contributor
vchrizz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
You could try usbctl or uhubctl.
Both tools are able to switch off/on usb ports if your usb chipset supports that.
After you switch off and on the port with the external disk, it should be recognized again.
answered 5 mins ago
vchrizzvchrizz
12
New contributor
vchrizz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
You could try usbctl or uhubctl.
Both tools are able to switch off/on usb ports if your usb chipset supports that.
After you switch off and on the port with the external disk, it should be recognized again.
answered 5 mins ago
vchrizzvchrizz
12
New contributor
vchrizz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 5 mins ago
vchrizzvchrizz
12
New contributor
vchrizz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 5 mins ago
vchrizzvchrizz
12
answered 5 mins ago
vchrizzvchrizz
12
12
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vchrizz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
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2
Not what you asked for, but it sounds like a heat related problem. If you haven't already done so remove the drive from the case and run it externally (better ventillation) and see if that improves your up time
– fabricator4
Oct 17 '12 at 3:03
tried that, and tried removing the usb enclosure all together, connecting via SATA, neither helped.
– Zenshai
Oct 26 '12 at 21:28