IBM E16RMLL-I - Tivoli Storage Manager, Implementation Manual, Page: 615 / 828

Chapter 18. Network Data Management Protocol (NDMP)
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Currently, NDMP for 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 to a Tivoli Storage Manager server running on AIX, Sun Solaris,
HP-UX, Linux, or Windows. This uses NDMP to back up a full file system image
and to restore an entire file system image. After a full backup image has been
created, subsequent backups can be differential images. A differential image
consists of all of the files that have changed since the previous full image backup.
The restore of a differential image automatically restores the differential image
after the appropriate full image has been restored. Backup and restore
operations can be scheduled using the administrative command scheduler.
During backup and restore operations, data flows directly between the tape drive
and the Network Attached Storage (NAS) appliance.
Figure 18-1 shows the topology for Tivoli Storage Manager NDMP operations.
Figure 18-1 NDMP operations and Tivoli Storage Manager interactions
18.1.3 NDMP support
NDMP operations can be performed using SCSI or ACSLS tape libraries.
Additionally, 349X tape libraries may be used with some NAS devices. NDMP for
NAS backup works with either a SCSI-attached tape device local to the NAS
appliance or with a SAN-attached SCSI or ACSLS device that can be shared