LVM snapshot size

Posted by Devator on Super User See other posts from Super User or by Devator
Published on 2012-11-09T22:15:50Z Indexed on 2012/11/09 23:05 UTC
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lvm

I currently have 2 volume's:

  [root@compute4 /]# lvscan
  ACTIVE            '/dev/vps/vm108_img' [30.00 GB] inherit
  ACTIVE            '/dev/vps/vm109_img' [90.00 GB] inherit

Now, I use the LVM snapshot function to create backups. My quesion is, what size does the snapshot needs to be? Atleast the same as the volume in question or can it be a lot smaller and will only the changes be saved into it?

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LVM snapshot size - Developer IT

LVM snapshot size

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