func availableScsiDisk(dss *object.HostDatastoreSystem, name string) (*types.HostScsiDisk, error) {
	ctx, cancel := context.WithTimeout(context.Background(), defaultAPITimeout)
	defer cancel()
	disks, err := dss.QueryAvailableDisksForVmfs(ctx)
	if err != nil {
		return nil, fmt.Errorf("cannot query available disks: %s", err)
	}

	var disk *types.HostScsiDisk
	for _, d := range disks {
		if d.CanonicalName == name {
			disk = &d
			break
		}
	}
	if disk == nil {
		return nil, fmt.Errorf("%s does not seem to be a disk available for VMFS", name)
	}
	return disk, nil
}
func availableScsiDisk(dss *object.HostDatastoreSystem, name string) (*types.HostScsiDisk, error) {
	ctx, cancel := context.WithTimeout(context.Background(), defaultAPITimeout)
	defer cancel()
	disks, err := dss.QueryAvailableDisksForVmfs(ctx)
	if err != nil {
		return nil, fmt.Errorf("cannot query available disks: %s", err)
	}

	var disk *types.HostScsiDisk
	for _, d := range disks {
		if d.CanonicalName == name {
			disk = &d
			break
		}
	}
	if disk == nil {
		return nil, fmt.Errorf("%s does not seem to be a disk available for VMFS", name)
	}
	return disk, nil
}
// availableScsiDisk checks to make sure that a disk is available for use in a
// VMFS datastore, and returns the ScsiDisk.