Hi Pat,
If it was possible for me I would go with a disk based solution of some
kind. And if you don?t have the need for netbackup and already have netapp`s
software onsite and are familiar with that software, maybe that is best for
you. I would try to eliminate so many hardware/softwares as possible in the
chain of handling backup and restore. Less is more. One box, one tool....
God, that would be great..
The important thing is not to do what everyone else is doing; it is to do
what is right for your environment. If you don?t have the need for netbackup
and tapes, don?t go that way.
Although, if you have a large amount of data that you need to keep for 7
years, then maybe tape would be more economic.
We are looking into VTL`s with dedup (awaiting netapp to release there dedup
function), and hope to reduce the need for tape big time...
If I could go all disk, I would. But with large data amounts the need for
cooling, floor space, electrics and such tape still bring me a great value.
Hopefully dedup gives us a more "equal" situation between disk and tape, and
then, the choice becomes easy for me. Still I would like to replicate and
duplicate data of to another disk or maybe tape for long time store..
Though it do feel a little bit scary to only have ONE baseline copy, but I
guess that goes for other disk based dedup solution as well. Could you also
replicate the "backup box" to another box? Now it starts getting to
expensive maybe...
Good luck. :-)
Hampus Lind
Rikspolisstyrelsen
National Police Board
Tel dir: +46 (0)8 - 401 99 43
Tel mob: +46 (0)70 - 217 92 66
E-mail: hampus.lind AT rps.police DOT se
-----Ursprungligt meddelande-----
Från: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] För Kenny
Skickat: den 27 juli 2007 05:39
Till: VERITAS-BU AT mailman.eng.auburn DOT edu
Ämne: [Veritas-bu] VTL and Tape or SnapVault.
I have a large NetApp environment and I am looking for a new strategy for
backing up my filers. I am trying to decide between using SnapVault
technology or a VTL with tape.
I am fortunate to be able to replicate all my primary filers to a remote
location. From there I want to protect the data. I have a 7 year retention
policy for my data. I was thinking of protecting 14 days online, then only
monthly's for 7 years.
I rarely do restores and most of the data is flat files.
With SnapVault I am able to transfer data to NearStore. It takes an initial
baseline copy, like a full backup, then it it would only "snap" the
incremental changes at the block level. I am thinking that this would be
very fast for daily backups and I could eliminate tape.
The alternative would be to use my existing NetBackup software to backup
each filer via NDMP to a VTL. From the VTL I would apply the same retention.
14 days in the VTL then monthly's to tape for 7 years.
I do not have to takes tape offsite since I am the primary copy is 300 miles
away.
So.... I was wondering if anyone has any thoughts on this. I am concerned
with SnapVault since it is all disk and corruptions may happen. It also has
a limitation of 251 snaps. That should not be a problem with my retention
policy, but my requirements may change? Also what would happen if I lost the
initial baseline copy, does that mean that all the incremental snaps are
worthless?
Unfortunately if I go with SnapVault, economically I will not be able to use
tape or Netbackup, so at that point I would not have the security of tape.
So VTL and Tape or SnapVault.
Thanks in advance for your help.
Pat
+----------------------------------------------------------------------
|This was sent by Patkenny AT comcast DOT net via Backup Central.
|Forward SPAM to abuse AT backupcentral DOT com.
+----------------------------------------------------------------------
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
