Hi Tal, what describe values in column 'actual_size' of view 'all_disks_for_vms'? I noticed very strange behavior of values in this column: It's * 0 for 'thin-provisioned' disk of VM in cluster 4.1 * 2147487744 for 'preallocated' 2GB disk of VM in cluster 4.1 * 0 for 'thin-provisioned' disk of VM in cluster 4.0 * 0 for 'preallocated' disk of VM in cluster 4.0 * 0 for disk of template that was created by importing glance image as template to 4.0 cluster * 200704 for disk of template that was created by importing 12 MB glance image as template to 4.1 cluster * 0 for disk of template that was created by importing glance image as template to 4.0 cluster * 0 for disk of template of VM with preallocated disk in 4.1 cluster * 0 for disk of template of VM with preallocated disk in 4.0 cluster How is the value supposed to be computed? Thanks for explanation Jakub