Zero megabytes suported

I tried to migrate and clone some of the VM’s on my Test and Development cluster and I got very, very strange error message during validation:

Virtual machine has 256 megabytes of memory, which is larger than maximum 0 megabytes supported by datastore 

Really ?! Oh Really?

error clone

datastore validation error

vSphere ESXi 5.1.1 build 1157734 with vCenter 1123966. I tried to find something by googling but with no luck and by coincident I noticed that one of my colleagues made changes on that cluster. What he changed was host advance settings – Config.HostAgent.log.level (a debug log level) from default (verbose) to trivia . What is the relation between clone of VM and change log level on ESXi host – remain mystery. I changed back log level to verbose and problem disappeared.

host advance settings

ESXi host advance settings

Artur Krzywdzinski

Artur is Consulting Architect at Nutanix. He has been using, designing and deploying VMware based solutions since 2005 and Microsoft since 2012. He specialize in designing and implementing private and hybrid cloud solution based on VMware and Microsoft software stacks, datacenter migrations and transformation, disaster avoidance. Artur has been in IT industry since 1999 and consulting since 2008. Artur holds VMware Certified Design Expert certification (VCDX #077).