the drives should be physically in different locations to work. SSD are good to go even without raid. I assume that you don't need to update the data oftenSSd s in Raid ? Or just the same data twice ??
If budget is not a problem, you should talk to service providers like IBM or HP. For a few billion dollars, they will create a system for you that would survive even a few simultaneous nuclear wars.[DOUBLEPOST=1441684795][/DOUBLEPOST]If you want your data to survive total annihilation of the earth (lets say a nuclear war between US and Russia), you would also want a data center on the moon. Should cost less than $100 billion. The communication speed and latency may not be good though. Since cost is not a constraint, you can hire NASA (and maybe ISRO) to help you with this.Budget is not a problem ..
What advantage do SSDs offer over conventional drives in the reliability department. Failure rate aside, both Seagate and WD have probably the best replacement service for their drives under warranty (phone call + courier, no service center visit). Does any SSD manufacturer provide that level of service in India?Buy 2 SSD, Encrypt them with Bitlocker and keep them in seperate places. so even in the case of natural disaster the data won't be affected