2 Things:
1)
Quote:
i want to decrease downtime in case of disasters as the dependency on the database will grow up day after day .
For that you will have to burn some DVDs with an OS image or bootable DAT...
You need for it to go fast the full OS with backup/restore utility you use...
2)
We dont know your volumetry... 20.000 records of 1 kb isnt the same as 5 Mb...
If you have no budget for backup/restore you cannot plan DR and so, who will be blamed once the disaster occured?
I would look for a little backup device that does deduplication, I saw some less than 5000 $ that can hold almost a TB...