We have lots of linux machines and little disk space.
Most of our hosts are ESX although we have physical linux boxes also.
In the past we have installed rpm files that messed up the box and have problems getting them back up to get the rpm back off the box.
Can we do a lvm snapshot before and roll it back if there is a problem.
As I understand a vmware ESX snapshot takes as much disk space as the original disk ( it is pretty much a mirror of the orignal machine ). We have little disk space and clearly can not do the snapshot on the vmware side. Snapshots on netapp filers take less than 1% of the disk space. LVM snapshots likely fit somewhere between. Does someone know how much space ( overhead ) a lvm snapshot takes
redhat linux 5.0