Key vtl features and options, Ndmp migration – Sun Microsystems Virtual Tape Library User Manual
Page 22
Key VTL features and options
8
VTL User Guide • May 2008
G • 96267
Key VTL features and options
■
■
“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.
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
physical
tape
library
VTL appliance
backup
application
server
NDMP 4.0
SAN fabric
Ethernet LAN
virtual tape library
A
C
D
hosted NDMP agent
B