2-Way NDMP (Local)

Tape media is local or directly connected to the PowerScale cluster. Backup or restore data flows between the PowerScale cluster and local tape media over FC, though catalog data flows from the PowerScale cluster to the DMA over Ethernet. Backup Accelerator nodes are added to PowerScale clusters to provide local FC connectivity.

3-Way NDMP (Remote)

Tape media is remote to the PowerScale cluster. Backup or restore data flows between the PowerScale cluster and remote tape media over Ethernet, including the catalog data, which flows from the PowerScale cluster to the DMA over Ethernet.

BRE

Backup Restartable Extension

CS

CommServe Server

DB

Database

DDB

Deduplication Database

DMA

Data Management Application (Commvault)

FC

Fibre Channel

PowerScale Backup Accelerator Node

Any PowerScale node that has FC connectivity to tape media.

MA

MediaAgent Server

MP

Mount Path (Disk Library)

NDMP

Network Data Management Protocol

SQL

Microsoft SQL Server

Tape Media

Tape Library, Tape Drives, Media Changer, or Virtual Tape Library (VTL)

WORM

Write Once Read Many