Dell PowerStore Configuring Multiprotocol File Sharing

When the session is set up, a Windows credential must be built for the SMB user. Building the credential enables handling SMB requests for a multiprotocol file system with a UNIX access policy. The SID of the Windows user is used to find the name from the AD. That name is then used (optionally using ntxmap) to find a UNIX UID and GID from the UDS or local file (passwd file). The owner UID of the user is a part of the Windows credential. When accessing a file system with a UNIX access policy, the UID of the user is used to query the UDS to build the UNIX credential, similar to building an extended credential for NFS. The UID is required for quota management.