Unlikely? Black swans do happen. How unlikely is a world-wide pandemic that cripples economies around the world?
Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of R.S. Sent: Wednesday, July 8, 2020 2:33 AM To: [email protected] Subject: Re: Storage & tape question It has no value. Terrorist attack is unlikely, but two terrorist attacks at the time are more unlikely. Thousand terrorist attacks at the tima are even more unlikely. A bomb attack is unlikely. Large (atomic?) bomb attack is more unlikely. When you have two datacenters and tapes in shelter off-site ...it is still just unlikely to have coordinated attack on all the locations at the time, and it is just unlikely to have shelters strong enough. More data locations? Fine, more bombs. And it is quite likely some malevolent people would know the adresses of the locations. If you think you can protect your data against unlikely events (disaster, etc.)... Or rather: if you think you know how to do it, despite of the costs - you're simply WRONG. There is always some level of protection. The level is not infinite and *cannot* be inifite. It can be high. Maybe "high enough" or "reasonably high". Side note: there are scenarios when achieving higher level of protection is pointless. Let's assume ticket system for metro transportation (buses) and ...war. Or ticket system for buses in Biloxi. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
