protected boolean validateSpaceRequirements() { int numOfVms = getParameters().getVmsCount(); Collection<DiskImage> diskDummies = ImagesHandler.getDisksDummiesForStorageAllocations(diskInfoDestinationMap.values()); Collection<DiskImage> disks = new ArrayList<>(numOfVms * diskDummies.size()); // Number of added disks multiplies by the vms number for (int i = 0; i < numOfVms; ++i) { disks.addAll(diskDummies); } Guid spId = getVmTemplate().getStoragePoolId(); Set<Guid> sdIds = destStorages.keySet(); MultipleStorageDomainsValidator storageDomainsValidator = getStorageDomainsValidator(spId, sdIds); return validate(storageDomainsValidator.allDomainsWithinThresholds()) && validate(storageDomainsValidator.allDomainsHaveSpaceForNewDisks(disks)); }