You might want to look at the new NetApp options in NBU v6.5.
NetApp and Symantec seemed to have found a pot of gold in this NetApp
data backup area. I recently asked for a quote on a NetApp (backup
disk) solution to backup one of our 3050 boxes ... and they came up with
a proposal that included a box bigger than the 3050 loaded shelves of
disk and an abundance of software licenses. It *seemed* that NetBackup
couldn't "see" what files were changed in the incremental snapshot
changes, so at the moment I'm underwhelmed.
At this point in time, I like the simplicity of disk backup devices with
inline dedup and internal function to long-term protect the backups
(Data Domain seems to have the "right" idea to me). The NetBackup
catalog will get large ... but doing away with tape seems a positive,
not a negative, to me.
This is a very interesting area and I'd love to read discussion from all
of you.
cheers, wayne
Kenny wrote, in part, on 2007-07-26 11:39 PM:
> 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
>
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