This is good explanation why not to use thin provisioning especially in small business where we cannot afford any vm redundancy.
expected survival rate after one year:
Windows 2008 system installed on certified hardware: 98%
same system on thick provisioned eagerzeroed vmdk running on ESXi: 97%
same system on thin provisioned vmdk running on ESXi: 60%
same as before plus automatic backup by Veeam or similar: 50 %
I dont think those numbers are completely off but I dont have statistics to backup such a claim.
Continue reading Thin or thick provisioning?