// Initializes a new StorageAPI from the endpoint argument, returns
// StorageAPI and also `format` which exists on the disk.
func connectEndpoint(endpoint Endpoint) (StorageAPI, *formatErasureV3, error) {
	disk, err := newStorageAPI(endpoint, storageOpts{
		cleanUp:     false,
		healthCheck: false,
	})
	if err != nil {
		return nil, nil, err
	}

	format, err := loadFormatErasure(disk, false)
	if err != nil {

	storageDisks := make([]StorageAPI, len(endpoints))
	g := errgroup.WithNErrs(len(endpoints))
	for index := range endpoints {
		index := index
		g.Go(func() (err error) {
			storageDisks[index], err = newStorageAPI(endpoints[index], opts)
			return err
		}, index)
	}
	return storageDisks, g.Wait()
}

// formatErasureV3ThisEmpty - find out if '.This' field is empty