For 100TB it’s worth looking into a dedicated storage server – there are tons of them available for cheap. labgopher makes it easy to track sales on ebay by price/storage/ram/whatever.
You can kinda do it with Google Customizabe Search Engine, which is basically a thin wrapper around Google. In a regular Google search you can use syntax like -site:ignorethisdomain.com to exclude specific domains (i do this with Pinterest whenever searching for images, for example). But manually typing in a large list of black listed domains would be tedious so instead you can set up a CSE with everybody you want to ignore and then just use the special URL as your search engine.
Hook them up, run a SMART test and see what their powered-on hours and error-rates look like. If it’s not a significant fraction of the MTBF, chances are you’ll be fine – assuming you’re using them in a RAID or ZFS array where a drive loss is not necessarily catastrophic.