Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm starting with LVM and I would like to know if when I create a LVM with different disks and one of them has data, when I create virtual volumes will make me loose all the data stored. And if there is a way to don't lose it, how can I do it?

Thank you

share|improve this question
up vote 2 down vote accepted

Yes, if you reassign your drive into an LVM, it will loose the data. Preventing this can be easy if you have at least one empty disk with enough space to accomodate the data: Just add the empty disk into the LVM, copy the data over there and after that is finished, reassign the full drive into the LVM as well.

Depending on your specific goals this might be more complicated or time-consuming (e.g. if a RAID will be used) but generally it should be possible.

share|improve this answer
Thanks my thoughts were in that way, create a new LVM with other disk, transfer all the data, and then add the old disk to the LVM to get more space in the logic volume. What I expect is to don't need to copy all the files between LVM and physical volumes, but I suppose this is not possible as you said. 400GB is not "too much", but it will take a few hours. – enedebe Nov 14 '12 at 10:19

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.