IBM E16RMLL-I Implementation Guide - Page 614
NDMP terminology
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18.1 NDMP terminology The key goals of NDMP include interoperability, contemporary functionality, and extensibility. This section is useful for understanding the general NDMP terms. NDMP Network Data Management Protocol. An open protocol for enterprise-wide network-based backup. NDMP client The application that controls the NDMP server. NDMP host The host that executes the NDMP server application. Data is backed up from the NDMP host to either a local tape drive or to a backup device on a remote NDMP host. NDMP server The virtual state machine on the NDMP host that is controlled using the NDMP protocol. There is one of these for each connection to the NDMP host. This term is used independently of implementation. 18.1.1 Tivoli Storage Manager and NDMP Tivoli Storage Manager Extended Edition uses Network Data Management Protocol (NDMP) to perform high-performance, scalable backups and restores. The backups and restores minimize network traffic and transfer data outboard of the Tivoli Storage Manager client and server. Tivoli Storage Manager enables data backup and restore on Network Attached Storage (NAS) devices that support Network Data Management Protocol (NDMP) Version 3.0. NDMP defines a mechanism and protocol for controlling backup, recovery, and other transfers of data between primary and secondary storage. The NDMP architecture separates the Data Servers (NAS) and Tape Servers (Tivoli Storage Manager), participating in archival or recovery operations. NDMP also provides low-level control of tape devices and SCSI media changers. 18.1.2 NDMP backup for NAS A full or differential backups can be performed at a directory or file system level, including snapshots that are stored as either file systems or subdirectories. Restores can be performed of an entire file system or selected files and directories within the file system. Multiple backup and restore operations can be performed in parallel. 584 IBM Tivoli Storage Manager Implementation Guide
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