> is there a way to zero out the unused space on the drive without harming the existing data??
yes - inside the redhat log in as root and go to every mounted partition.
Then create a dummyfile like this and delete it again once the whole partition has been filled
cd /
dd if=/dev/zero of=dummy-file bs=1M; rm dummy-file
Do this when the VM does not have a lot to do.
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Re: Space still used after converting to Thin provisioning
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