Centralised D2D backups using Backup Exec 2012
Can anyone tell me the best practices to backup the following servers to disk please? I am looking at using a centralised media server running Backup Exec 2012 to back up to a single backup target (a QNAP box).
Servers are as follows :
1 x Exchange 2007 server
2 x application servers
1 x database server (bespoke)
3 x file servers
A total full backup of all is around 1.1TB and this customer would like to retain the data for 6 months on disk.
I am hoping to run weekly full backups on a friday with incremental backups on mon-thurs. Is anyone out there doing this already and is willing to give any tips or best practices? I have done this in the past by creating daily, weekly and monthly media sets in Backup Exec - with relevant overwrite periods - but this was with tape media. Is it the same when backing up to disk?
I am also trying to estimate how much storage will be needed to do this but it's a little diffcult without knowing compression ratios - what sort of compression ratios are people seeing out there when backing up to disk? I know the amount of compression is down to the type of data being backed up but is 1.5:1 a reasonable estimate?