Disk based storage for backups
Current Environment:
NetBackup 6.0 MP4
Master ? HPUX 11.i
3 Media ? HPUX 11.i
L700 w/ 10 LTO3 (fiber) direct attached to media servers
NDMP
Near Future:
NetBackup 6.5.x
Master ? HPUX Itanium 11.23 +
1-2 Media servers
Disk based storage of some kind
L700w/10 LTO3 (TAN)
We are shopping around for a disk based solution for our backup NetBackup
environment. The goal is to shorten backup windows and get tapes duplicated
and ready for offsite within 24hours. Currently our offsite movements are
about 3-4 days behind the primary backup being done.
The players in the field have been narrowed down to:
? EMC VTL w/ data dedupe
? Quantum VTL w/ data dedupe
? Sun/STK VTL (dedupe available 1st quarter 2009)
? NetApp VTL w/ data dedupe
There is an argument though as to whether VTL or Disk Storage Unit would be
better. With some of the DSU appliances speed was the issue. As in the case
of Data Domain, the appliance uses CIFS, NFS, or other network protocols for
transfers. To get any performance gains or to just expand you need to add more
heads and trays.
With 6.5 and some of the advanced disk options, is it viable to just add a lot
of disk to the SAN? We would then use NetBackup Vault or Storage Lifecycle
Policies to dupe to tape. This does rely on the media servers as is currently
done now. In the future when the time comes for replication, just look at
whatever 3rd party vendor has the software/hardware to do it. What would be
the advantages/disadvantages to doing it this way?
Whatever solution we pick it will hold a months worth of Fulls and
Incrementals. We would then duplicate the fulls to tape for offsite purposes.
In the 2-3 year time span we plan on adding a second unit to our own offsite
location for replication off data backed up.
We are not looking for a client side Dedupe solution like Puredisk or Avamar.
Some of our Systems are pretty well maxed out on CPU/IO and that might be the
factor to push it over the edge.
Any thoughts on the subject are welcome and appreciated.
:D
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