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| HDDRawCopy with 2 defective sources (raid 1) and 1 target http://forum.hddguru.com/viewtopic.php?f=7&t=24319 |
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| Author: | Corpo [ October 25th, 2012, 4:24 ] |
| Post subject: | HDDRawCopy with 2 defective sources (raid 1) and 1 target |
Hi! I'm in the process of recovering data from a Nas with 2 hdd in raid 1. Both disks are defective (nas has fallen on the floor while powered on ...). I successfully dumped one of the disks to a new one, but with a lot of bad sectors. I was wondering, if I copy the second disk to the same target again, will it leave the target untouched when it encounters bad sectors on the source ? Or will it empty them on the target ? The idea is trying to get most of the datas from both drives. For short, if I do a copy of the second failed drive on the target, will it allow me to recover data when there was a bad sector in a particular place on disk 1 and there is none on disk 2 ? Or will it erase the target when bad sectors are encountered ? Thanks |
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| Author: | loki [ October 25th, 2012, 5:36 ] |
| Post subject: | Re: HDDRawCopy with 2 defective sources (raid 1) and 1 targe |
You need to clone both drives to 2 good working drives & then create a virtual mirror in R-Studio. Add the cloned drives (not the originals) & then try to recover data using the software. http://www.data-recovery-software.net/ Loki |
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| Author: | northwind [ October 25th, 2012, 5:46 ] |
| Post subject: | Re: HDDRawCopy with 2 defective sources (raid 1) and 1 targe |
loki wrote: You need to clone both drives to 2 good working drives & then create a virtual mirror in R-Studio. Add the cloned drives (not the originals) & then try to recover data using the software. http://www.data-recovery-software.net/ Loki +1 |
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| Author: | Corpo [ October 25th, 2012, 5:48 ] |
| Post subject: | Re: HDDRawCopy with 2 defective sources (raid 1) and 1 targe |
Well, this is a LaCie NAS, so datas are on XFS partition. As I have recorded the LBAs of the bad sectors, I'll try to sort it out by myself using linux's dd and a custom script. For now I don't have a 2nd new drive to clone the 2nd drive (I'm out of 2 TB HDDs ..) Thanks for the hint anyway |
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| Author: | Corpo [ October 25th, 2012, 8:09 ] |
| Post subject: | Re: HDDRawCopy with 2 defective sources (raid 1) and 1 targe |
Or maybe I'll give ddrescue a chance to work by itself |
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| Author: | loki [ October 25th, 2012, 8:55 ] |
| Post subject: | Re: HDDRawCopy with 2 defective sources (raid 1) and 1 targe |
UFS Explorer RAID Recovery http://www.ufsexplorer.com/download_stdrr.php Loki |
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| Author: | Touchclarity [ October 25th, 2012, 10:13 ] |
| Post subject: | Re: HDDRawCopy with 2 defective sources (raid 1) and 1 targe |
Corpo wrote: Well, this is a LaCie NAS, so datas are on XFS partition. As I have recorded the LBAs of the bad sectors, I'll try to sort it out by myself using linux's dd and a custom script. For now I don't have a 2nd new drive to clone the 2nd drive (I'm out of 2 TB HDDs ..) Thanks for the hint anyway Mdadm works well with these LaCie NAS's.... If you're already using Linux, then give it a try - but get a good clone of both drives first and work with those. |
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| Author: | Corpo [ October 25th, 2012, 16:23 ] |
| Post subject: | Re: HDDRawCopy with 2 defective sources (raid 1) and 1 targe |
Thanks for hints, I'll keep you updated with my progresses |
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