- Notes, cautions, and warnings
- Introduction to this guide
- OneFS backup and recovery
- Data replication with SyncIQ
- Protecting data with SyncIQ
- Creating replication policies
- Managing replication to remote clusters
- Managing replication policies
- Managing replication to the local cluster
- Managing replication performance rules
- Managing replication reports
- Managing failed replication jobs
- Managing changelists
- Configuring SyncIQ Failover/Failback Policies
- NDMP backup and recovery
- NDMP backup and restore models overview
- NDMP two-way backup
- NDMP three-way backup
- Support for NDMP sessions on Generation 6 hardware
- Setting preferred IPs for NDMP three-way operations
- NDMP multi-stream backup and recovery
- NDMP file list backup overview
- Snapshot-based incremental backups
- NDMP backup and restore of SmartLink files
- NDMP protocol support
- Supported DMAs
- NDMP hardware support
- Sharing tape drives between clusters
- NDMP backup limitations
- NDMP performance recommendations
- Excluding files and directories from NDMP backups
- Administering NDMP
- NDMP backup and recovery tasks
- Configuring basic NDMP backup settings
- Managing NDMP user accounts
- Managing NDMP environment variables
- Managing NDMP contexts
- Managing NDMP sessions
- Managing NDMP Fibre Channel ports
- Managing NDMP preferred IP settings
- Managing NDMP backup devices
- NDMP dumpdates file overview
- Managing snapshot based incremental backups
- NDMP restore operations
- Managing file list backups
- Managing cluster performance for NDMP sessions
- Managing CPU usage for NDMP sessions
- Configuring NDMP backups with NetWorker
- Configuring NDMP backup with Veritas NetBackup
- Configuring NDMP backup with CommVault Simpana
- Configuring NDMP backup with IBM Tivoli Storage Manager
- Sparse file support
PowerScale OneFS 9.8.0.0 Backup and Recovery Guide
NDMP backup and restore models overview
NDMP supports both three-way and two-way backup models.
A two-way NDMP backup process is significantly faster than the three-way NDMP backup process. It is also the most efficient method in terms of cluster resource consumption. However, a two-way NDMP backup process requires that you attach one or more Backup Accelerator nodes or Fibre Attached Storage nodes to the cluster. In both the backup models, file history data is transferred from the cluster to the backup server. Before a backup begins, OneFS creates a snapshot of the targeted directory, then backs up the snapshot, which ensures that the backup image represents a specific point in time.
NOTE:Dell Technologies recommends not to run backups on archival nodes due to processing capability.
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