Hello,
I'd like to understand 'write zeros' in qmrestore .
We've recently used sdelete in win kvm's and that cut down backup up size 30-50% . Same with linux kvm's using this:
My question is: should 'write zeros' turned on in qmrestore in order to make KVM's more efficient? Or is it unrelated?
I've check man pages , searched using google but could not find an answer.
thanks.
I'd like to understand 'write zeros' in qmrestore .
We've recently used sdelete in win kvm's and that cut down backup up size 30-50% . Same with linux kvm's using this:
Code:
dd if=/dev/zero of=zero.small.file bs=1024 count=102400
ls -lh zero.small.file
dd if=/dev/zero of=zero.file bs=1024
ls -lh zero.file
/bin/rm -f zero.small.file
sync ; sleep 60 ; sync
/bin/rm -f zero.fileMy question is: should 'write zeros' turned on in qmrestore in order to make KVM's more efficient? Or is it unrelated?
I've check man pages , searched using google but could not find an answer.
thanks.