It is possible to deploy your data store across multiple zones. Multiple zones provide fault isolation and availability for your data if a single zone fails. Each zone has a copy of your complete data store. With this configuration, reads are always possible, as long as your data's consistency guarantees can be met. Writes can also occur in the event of a zone loss, as long as the database maintains quorum. For more details, see Concepts Guide.

plan deploy-zone -name "Manhattan" -rf 1 -wait;
plan deploy-zone -name "JerseyCity" -rf 1 -wait;
plan deploy-zone -name "Queens" -rf 1 -wait;

For more details on the parameters of this command, see Create a Zone.