We're using a remote backup vendor to manage our backup of our data center. We have in total 4TB of data kept remotely. This is split into 3,9TB file data and 100GB MS SQL Server databases. We pay a lot of money (EUR 2000/mo) to our vendor each month to make this backup and we're looking for another solution. More directly we're thinking in ways to arrange our own backup hardware setup in a another data centre and do the remote backup ourselves. But I would like to hear from people that has done such setups before and can recommend ways of doing this.
Here are my thoughts:
* A NAS box with good expansion options, so we can safely grow data as time go by. Today we grow by 1 TB each year. We buy this box ourselves and place in another data centre for redundancy.
* Reliable backup software for large MS SQL Server databases. I like Tivoli TDP agent that we use today, because it transfer the backup of a database directly to TSM server, instead of making a local backup first and then transfer. This works ok, but I'm sure there are alternatives.
* Reliable and fast file backup or large number of files. We have 3,9TB file data, split into around 10 mio files and 5 mio folders (and still growing). We use Tivoli TSM today, because it has a Journal Engine (JBB) that keeps tracks of file changes real-time. This makes our daily incremental backup very fast, because it does not have to scan the filesystem for changes - it just take backup of the files tracked in JBB. This works ok, but not I think there must be other ways?
* I would like to be able to make backup/snapshots more often, so I'm able to recover data as close to breakdown time as possible. Today I would loose 1 day or work if the system was crashed.
Does anyone have good ideas? I look forward hearing your thoughts. Thanks.