The biggest off-color swan on the West Coast by far is earthquake. Wildfire is also on the list as well as tsunami. Some years ago (the old) Bank of America came close to shutting down their downtown LA data center because of civil unrest. In the age of climate change, flooding is not out of the question.
As to probabilities, I like to question the 'all eggs in one basket' trope. If you have a dozen eggs *every one of which is vital*, you might as put them all in one basket and resolve to take very good care of it. If some of the eggs are dispensable, then distribute them in multiple baskets. The more baskets you have to take care of, the greater the risk that one or more will fail. . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 323-715-0595 Mobile 626-543-6132 Office ⇐=== NEW robin...@sce.com -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Charles Mills Sent: Wednesday, July 8, 2020 9:13 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: (External):Re: Storage & tape question CAUTION EXTERNAL EMAIL 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:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of R.S. Sent: Wednesday, July 8, 2020 2:33 AM To: IBM-MAIN@LISTSERV.UA.EDU 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 lists...@listserv.ua.edu with the message: INFO IBM-MAIN
