That's an interesting perception of costs associated with downtime. I had never thought of the dollar value of minimizing downtime. But you have a great point although the values perception portrayed by you below may just be rough estimates. A good argument to present to a management that think zero downtime is an actual possibility.
It's like buying a new car. Even if you get the best trade in deal ever while driving from your smartphone, and drive straight to the dealership, and meet all possible purchase and insurance requirements and what not online from your smartphone, you still have to get out of your old car to get into your new. That would be a minutes down time at least, unless you somehow magically invent time travel and then - swoooosshhh.. turn back time to save even that minute.. Joe _____ From: Action Request System discussion list(ARSList) [mailto:[email protected]] On Behalf Of John Sundberg Sent: Wednesday, March 19, 2014 10:39 AM To: [email protected] Subject: Re: BMC Remedy and Flash ** Joe, I agree. Also - it is like this . the closer you get to no downtime - the more expensive the migration. (roughly) 1 week of downtime - migration costs $15,000 1 weekend of downtime - migration costs $50,000 1 day of downtime - migration costs $100,000 1 hour of downtime - migration costs $200,000 1 minute of downtime - migration costs $300,000 I know of very few (probably none) - that when presented with the costs of an upgrade like this - that they would choose the 1 minute of downtime. (Most would fall in the weekend space) Also - I would imagine. If they presented to their company that we could either 1) Upgrade over a weekend (60 hrs) - at a cost of $50,000 or 2) Upgrade and only be down (1 hrs) - at a cost of $200,000 99% would go for the #1 option - and complain about that cost too. Hey - the formula might just be: (Roughly) Cost = $10,000 / % of the day down. -John On Wed, Mar 19, 2014 at 12:06 AM, Joe D'Souza <[email protected]> wrote: Within certain limits though. I would not go that far to claim to the customer/management that there will be absolutely no down time during code migration. There will be. By taking servers on and off a server group, to upgrade core system versions, yes that can be done with 'minimal' down time. But the migration and code upgrade, takes as much down time as the migration of the code itself takes. Even if you stand up a completely new parallel system, and then decide a switch by mirroring a database, there still will be that minimal time required to port the delta data. Personally I think it is not possible to completely eliminate downtime if your system is significantly large. Its like approaching infinity in mathematics - you can get close, but you can never get there. You just got to be content you got close enough.. Cheers Joe -----Original Message----- From: Action Request System discussion list(ARSList) [mailto:[email protected]] On Behalf Of Zandi Sent: Tuesday, March 18, 2014 6:49 AM To: [email protected] Subject: Re: BMC Remedy and Flash 24/7 is already there... It is called server groups, if you implement this would can take a server down and the others will takeover while it is being patched. You will need a load balancer as well. This also allows for larger system use as well My 2 cents Sent from my iPhone > On Mar 17, 2014, at 3:12 PM, James Smith <[email protected]> wrote: > > Nice info Doug, thanks for sharing. Want to add 2 cents if its considered then its of great use. > > Currently we have windows based tools for development activities and data migration like Developer studio and Import tool. Will it be feasible to make then available over web? > > One more thing, how can we make remedy to be available 24*7 during upgrades as well - zero downtime upgrades. This will help the product to compete in the market. ____________________________________________________________________________ ___ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org "Where the Answers Are, and have been for 20 years" -- John Sundberg Kinetic Data, Inc. "Your Business. Your Process." 651-556-0930 I [email protected] <http://www.kineticdata.com/> www.kineticdata.com I <http://community.kineticdata.com/> community.kineticdata.com _ARSlist: "Where the Answers Are" and have been for 20 years_ _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org "Where the Answers Are, and have been for 20 years"
