Sun Microsystems Virtual Tape Library manual Key VTL features and options, Ndmp migration

Key VTL features and options

Key VTL features and options

■“NDMP migration” on page 8

■“VTL high‐availability option” on page 9

■“Automated Tape Caching” on page 12

■“Virtual tape replication” on page 12

■“VTL Secure Tape encryption option” on page 14.

NDMP migration

Backup applications that support Network Data Management Protocol (NDMP) 4.0 with Sun VTL virtual libraries can mount virtual tapes on a suitably configured VTL Plus 2.0 server, copy them to physical media, and track copies using backup application management databases. The backup application backs up data across the SAN, creating the critical first copy on VTL virtual tape (A below). The backup application then mounts the virtual tapes to an NDMP agent hosted on the VTL server (B) and copies them over the SAN to physical media (C) by sending NDMP command and control information across the Ethernet LAN (D).

To take advantage of this functionality, you must enable the VTL Plus 2.0 Hosted Backup and NDMP options.

NDMP 4.0

SAN fabric

	A	C
backup	VTL appliance
application
server	virtual tape library	physical
		tape
	B	library

Ethernet LAN

hosted NDMP agent

D

Note that the Sun VTL Plus Hosted Backup and NDMP options are not required when backing up a Network Attached Storage (NAS) filer to a VTL applaince. In this instance, the NAS filer is simply a backup client. The backup application server

8 VTL User Guide • May 2008 G • 96267