<cell name> – Required. A cell is a location for a service. Generally, a cell resides in only one cluster. In Vitess, the terms “cell” and “data center” are interchangeable. The argument value is a string that does not contain whitespace.
<tablet alias> – Required. A Tablet Alias uniquely identifies a vttablet. The argument value is in the format <cell name>-<uid>. To specify multiple values for this argument, separate individual values with a space.