GridDisk(.com) is a new online backup service that will be launching shortly. At the present time we have a very basic holding page at the web address (the site is being re-developed). Backblaze.com and Mozy.com would be the biggest competitors in our industry, and we will be looking to develop a similar brand/site.
The service will be offering backup space primarily to businesses and companies rather than to home desktop users. We are looking for a web 2.0-esque logo and we plan for the website to have a white or light coloured background (think Google's various services).
We don't have any particular colours in mind at the present time, however, as said the web site background will be white. Feel free to use disks (or discs!) or any other related paraphernalia if you feel it will help the logo.
A modern looking logo (no serif fonts please) that is simple and effective will likely be the best in this case.
Feel free to play with the case of the brand name - e.g. gridDisk or GRIDDISK etc.