We backup to Data Domain and to Quantums DXi over NFS from NetBackup 7.1.   

Other than the fact they're now owned by EMC I have a generally favorable 
opinion of Data Domain.    We've been using it for a few years now with few 
major issues. 

One thing to keep in mind is whether the unit you're buying is doing inline 
deduplication, host deduplication or post-ingest deduplication and whether it 
fits in your backup window.   

We had our DXi running fine when it did post-ingest on our big ERP Database but 
then they changed their "firmware" (read complete OS upgrade!) and it started 
doing inline deduplication and we found it wouldn't fit in the backup window or 
complete most days.   After we forced them to give us back the original 
"firmware" a couple of years ago we've been happy with the performance but 
sooner or later this will bite us as all their newer units use the newer 
"firmware" so their support will struggle remembering what this did.

So far as I know there is no requirement to use Symantec's appliances with 
NetBackup.   As noted above we use 2 other vendors for this.   

Both Data Domain and DXi offer remote replication to an offsite facility but we 
don't do that.

Were I investigating a new solution I might also look at ExaGrid.   Some of 
what I've seen looks interesting but I've not used it.


-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu 
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of saiyed123
Sent: Friday, November 14, 2014 10:11 AM
To: VERITAS-BU AT MAILMAN.ENG.AUBURN DOT EDU
Subject: [Veritas-bu] Netbackup Appliance Vs Data Domain

Our company is considering NBU for backup solution using backup appliance, our 
environment is mainly VMWARE ( 800+ guest) 30 + ESX and 30+Solaris boxes.
We also need Exchange backups to improve and keep the backup over the san when 
possible.
We will need data replicated offsite also.
Current proposal is Netbackup with 3 5230 appliances I like the integration of 
Netbackup with Appliance but need to know those who are currently using it 
thier experience with it.
Upgrades/Vmware backup & Exchange/share point/sql etc, netbackup Air and 
accilirator products.
Why do you think Netbackup is better vs EMC or Commvault.
I understand there are some limitation with the Appliance in their size and 
capabilities as compared to DD, i.e NFS/VTL Would it be better to go with two 
netbackup appliance and one data domain appliance so we can leverage all 
capabilities, Symantec is saying NFS capabilities are coming next year and 
suggest we backup external NFS mount ( waists of space and time).
So i need some opinion in this regard.
We are medium size company.

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