NetBackup™ NAS Administrator's Guide
- Section I. About NAS backups
- Section II. Using NAS-Data-Protection (D-NAS)
- D-NAS overview
- D-NAS Planning and Tuning
- Pre-requisites for D-NAS configuration
- Volume multi-host backup
- Configure D-NAS policy for NAS volumes
- Using accelerator
- Using Vendor Change Tracking
- Replication using D-NAS policy
- Restoring from D-NAS backups
- Troubleshooting
- Section III. Using NDMP
- Introduction to NetBackup for NDMP
- About NetBackup for NDMP
- Types of NDMP backup
- About assigning tape drives to different hosts
- Installation Notes for NetBackup for NDMP
- Configuring NDMP backup to NDMP-attached devices
- About Media and Device Management configuration
- About creating an NDMP policy
- About enabling or disabling DAR
- Configuring NDMP backup to NetBackup media servers (remote NDMP)
- Configuring NDMP DirectCopy
- Accelerator for NDMP
- Remote NDMP and disk devices
- Using the Shared Storage Option (SSO) with NetBackup for NDMP
- NAS appliance information for NDMP
- Vendor-specific information
- EMC Celerra
- NetApp
- Using NetBackup with NetApp's Data ONTAP 8.2 cluster mode
- Using NetBackup with NetApp's Data ONTAP 8.2 cluster mode
- Backup and restore procedures
- Troubleshooting
- Using NetBackup for NDMP scripts
- Introduction to NetBackup for NDMP
About the NDMP backup process
During a backup, the following events occur in this order:
From the Enterprise Media Manager (EMM), NetBackup obtains a media ID for the tape that is used for the backup. It then sends a tape-mount request to ltid.
ltid on the NetBackup for NDMP server sends the necessary NDMP (SCSI robotic) commands to mount the requested tape on the storage device.
NetBackup sends the NDMP commands that are necessary to have the NDMP server application perform a backup to the tape. The backup data travels in one of two ways:
The NDMP server application sends information to the NetBackup for NDMP server about the files that were backed up. This information is stored in the NetBackup file database.
The NDMP server application sends status about the backup operation to the NetBackup for NDMP server.
The following figure shows the NetBackup processes that are involved in the NDMP backups.