It is now available in Sydney through its distributor Kayell.
The product itself if you view it in their website is very impressive. (
http://www.drobo.com/products.aspx) You have to check the video to see how it really works.
I love it's SAFE features - Secure, Automated, Flexible and Expandable. It looks very easy to use and upgrade hdd space. I currently have a 500gb and a 320gb external hdd but this is far way cooler set-up as it secures your data even though one of the 4 hdd crashes. You need to watch the video in their website to be amazed. Here is a success story too (
http://www.drobo.com/products_smolan.aspx)
Price (in USD) is $499 (about Php20k) while in Sydney is about $899 (approx 34k pesos). Of course you need to buy some internal hdd if you don't have a spare at home.
What's nicer is that it works well with Mac's Time Machine.
For small businesses who are data hungry and needed a large hdd space, I think this is a worthy investment.