However, these are enterprise-class storage systems that are in the order of tens of thousands to hundreds of thousands of dollars and usually are part of a larger SAN. There are some lower end storage systems with some dynamic functionality such as EMC's AX150 and HP's All-In-One storage systems, but even these are in the upper thousands range.
So, basically your idea of growing your simple RAID group by dynamically adding drives is unlikely unless you've managed to find a RAID controller with exceptional functionality, which is entirely possible. Given today's state of the art, I've taken a lesson from Sean Connery and learned never to say never.*
*For the uninformed, Sean once said that he would never play James Bond again, only to do so many years later in a Bond movie aptly named Never Say Never Again.
Dig Deeper on RAID
Related Q&A from Ashley D'Costa
Should you use a clustered NAS for your SMB?continue reading
Learn about some of the most affordable data backup solutions for SMBs.continue reading
Data backup expert Ashley D'Costa answers a SearchDataBackup reader's question about IBM Tivoli Storage Manager backup window problems.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.