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Recovering from incomplete pvmove

linux-lvm Brian McCullough 3 participants 3 messages Jun 2, 2016 – Jun 12, 2016

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A few days ago, I had, I now know, a drive failing and attempted a pvmove.

According to what I could see, some data was recovered. However, the source drive is now scrap metal, from what the data recovery company tells me, so I am wondering whether I can restore anything from the new target drive.

Can you help?

Ubuntu 14.04.1 LTS
Kernel 3.13.0-86-generic
LVM version: 2.02.98(2) ( 2012-10-15 )
Library version: 1.02.77 ( 2012-10-15 )
Driver version: 4.22.0

Anything else that I can provide?

Thanks,
Brian

#1 lore raw

how far did the pvmove get? What was the layout of the LV? Did you already attempt mounting it?

brassow

Quoted 30 lines · Brian McCullough

A few days ago, I had, I now know, a drive failing and attempted a pvmove.

According to what I could see, some data was recovered. However, the source drive is now scrap metal, from what the data recovery company tells me, so I am wondering whether I can restore anything from the new target drive.

Can you help?

Ubuntu 14.04.1 LTS
Kernel 3.13.0-86-generic
LVM version: 2.02.98(2) ( 2012-10-15 )
Library version: 1.02.77 ( 2012-10-15 )
Driver version: 4.22.0

Anything else that I can provide?

Thanks,
Brian

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#2 lore raw
Quoted 1 line · Brassow Jonathan

how far did the pvmove get? What was the layout of the LV? Did you already attempt mounting it?

Thank you for responding, Jonathan.

The drive had a dozen partitions ( 250 GB each ), and, as I remember, I may have successfully moved one. Shortly afterward, the drive completely failed, and, after some attempts to restore it to working, I sent it off to a data recovery service, who told me that the heads had crashed, and it was scrap metal.

I have done vgscan, and that complains about missing UUIDs.

I had added a new drive and one or more PVs to the VG, and that was what I was trying to pvmove.

I have not attached the "new" drive to the machine since the old one failed.

I suspect that things are past saving, and that the parts of the drive that may have been successfully transferred are beyond recovery. However, I have never worked in this part of LVM, so thought that I would ask.

Brian