I agree that a risk/cost/impact on business analysis is critical. For example some years ago I worked for a utility in downtown Chicago, that at time had the datacenter in the headquarters, and had a DR cold site at one of the companies outlying facilities (also in Chicago, but well out of downtown). Once at a class, people pointed out that the centers were far too close together to be of use, if say the disaster wiped out the city, to which I pointed out that, since the company only had customers in the Chicago area, it might not matter. Then came April 1992, and the headquarters building lost power for 5 days due to the tunnel flooding, and we were able to go to the cold site and get the critical systems up and running, with network connectivity, in a fairly short time. For most aspects, the two centers were far too close together, put in this case, they were just far enough.
Wayne Driscoll Product Developer JME Software LLC NOTE: All opinions are strictly my own. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Howard Brazee Sent: Thursday, August 02, 2007 1:18 PM To: [email protected] Subject: Re: Poll - Distance between Data Center and DR You don't create a DR recovery for the heck of it. You do so because you analyze the risks of various things happening. If the sun goes nova, then you need several light years separation - but the value of such doesn't help your company. So what you need to start with is a list of risks with their likelihoods. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
