Dell PowerStore Configuring Multiprotocol File Sharing

A UNIX credential must be used to handle NFS requests for an NFS-only or multiprotocol file system with a UNIX or native access policy. The UNIX credential is always embedded in each request; however, the credential is limited to 16 extra groups.

To enable the Extended Credentials property, select Storage > NAS Servers > [NAS server] > Sharing Protocols > NFS Server and toggle the Extended Credentials option. By enabling UNIX extended credentials, it is possible to build a credential with more than 16 groups. If this option is set, the active UDS is queried with the UID to get the primary GID and all the group GIDs to which it belongs. If the UID is not found in the UDS, the UNIX credential that is embedded in the request is used.