• Rapid Data Access (RDA)– OpenStorage Technology (OST)– Rapid Data Storage (RDS)NOTE: The DR Series system supports the following container connection types: NFS, CIFS, and RDA. OST andRDS provide a logical disk interface that can be used with network storage devices to store data and support datastorage operations.For more information on NFS and CIFS, see NFS and CIFS. For more information on RDS, see Configuring and UsingRapid Data Storage.For more information on OST, see Understanding OST, Creating an OST or RDS Connection Type Container, and Creatingan NFS or CIFS Connection Type Container.NFSThe Network File System (NFS) is a file system protocol that is designated to be a file server standard, and its protocoluses the Remote Procedure Call (RPC) method of communication between computers. Clients can access files via thenetwork similar to the way that local storage is accessed.NFS is a client-server application in which a client can view, store, and update files on a remote system just like they areworking on a local system. System or Network Administrators can mount all or a portion of a file system, and the filesystem (or portion) that is mounted can be accessed using the privileges assigned to each file.NOTE: If you want to do a mount on AIX, you must set the nfs_use_reserved_ports and portcheck parameters first.The parameters cannot be set to 0. For example: root@aixhost1 / # nfso -po portcheck=1root@aixhost1 / # nfso -po nfs_use_reserved_ports=1CIFSThe Common Internet File System (CIFS) remote file access protocol is one supported by the DR Series system, and isalso known as a Server Message Block (SMB). SMB occurs more commonly than the Network File System (NFS)protocol on systems that run the Microsoft Windows operating system. CIFS allows programs to request files or serviceson remote computers.CIFS also uses the client-server programming model, whereby the client requests access to a file or passes a messageto a program running on the server. Servers review all requested actions and return a response. CIFS is a public (oropen) variation of the SMB that was originally developed and used by Microsoft.NOTE: The DR Series system currently supports version 1.0 of the Server Message Block (SMB).NOTE: For details on CIFS feature restrictions, see theDell DR Series System Interoperability Guide, atsupport.dell.com/manuals.CIFS ACL SupportThe DR Series system software supports the use of access control lists (ACLs) for CIFS and share-level permissions. Bydefinition, an ACL is simply a list of permissions that can be associated with any network resource.Each ACL can contain access control entries (ACEs) that define or describe the permissions for an individual user or agroup of users. An ACL can consist of zero (meaning that all users have access) or a number of ACEs that define specificpermissions on a per-user or per-group basis.NOTE: If an ACE list is empty (meaning that it contains zero entries), this means that all access requests will begranted.22
