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High Availability and Data Protection with Dell PowerScale Scale-Out NAS
Executive summary High availability and reliability at the petabyte scale High availability with OneFS OneFS fault tolerance High availability and data protection strategies
Overview
OneFS high availability and data protection suite
Connection load balancing and failover—SmartConnect
Snapshots
Writable snapshots
SmartDedupe
Small File Storage Efficiency
Inline data reduction
Replication
Archiving and data security
CloudPools
SmartLock
Data Encryption at Rest
Audit
OneFS hardening
Secure Remote Services and SupportAssist
File filtering
Nearline, VTL, and tape backup
FC backup accelerator card
Backup from snapshots
Parallel streams
NDMP
Direct NDMP model
Remote NDMP model
Certified backup applications
Summary OneFS glossary

Direct NDMP model

Home > Storage > PowerScale (Isilon) > Product Documentation > Data Protection > High Availability and Data Protection with Dell PowerScale Scale-Out NAS > Direct NDMP model

Direct NDMP model

  • This is the most efficient model and results in the fastest transfer rates. Here, the data management application (DMA) uses NDMP over the Ethernet front-end network to communicate with the cluster. On instruction, the cluster, which is also the NDMP tape server, begins backing up data to one or more tape devices which are attached to it by Fibre Channel.

    The DMA, a separate server, controls the tape library’s media management. File History—the information about files and directories—is transferred from the cluster by NDMP to the DMA, where it is maintained in a catalog.

    Direct NDMP is the fastest and most efficient model for backups with OneFS. Direct NDMP requires either a B100 backup accelerator (or a pool of Gen6 nodes with Fibre Channel connectors) to be present within a cluster.

    Graphic illustrating two-way NDMP cluster backup using a backup accelerator node attached to the FC fabric.

    Recommended two-way NDMP over Fibre Channel