Duplicate backup or device replication

[MSD]

Hi

We are planning on replacing our current backup infrastructure (12.5 to Dell LTO3) due to size and time limitations.  Our planned solution is to do daily full's to a local NAS or SAN and weekly full's (over a weekend) and daily incrementals to a 2nd NAS or SAN at our datacentre.  Data amount is approx 2TB for a full and is a hyper-v cluster on an equallogic iscsi SAN.

My questions are 

a) is this a sensible solution

b)is it better to do duplicate backups to the datacentre, or use device replication to handle it, or just run a job to the remote device

Thanks in advance

Mark

[teiva-boy]

You can duplicate backcups in BackupExec, and in doing so, BE is aware of the copies of data, and you can set over write and append periods.  Restores are done through the restore interface immediately.  

You can do NAS/SAN replication but when you need to restore, you'll have to index and catalog the remote location before you can even restore anything as BE is not aware of the dadta that has been moved.

We backup to restore.  We don't bacckup to backup.

Let's just hope you have enough bandwidth to replicate 2TB's of data within your backup windows.  That is a lot of data for a WAN link.