Wait!!!! I thought upgrades are free? You mean there is a cost? (sarcastically stated after doing a .1 rev upgrade recently that probably cost way too much over the course of a few months but we'll never know because it was all done without paying an external firm and therefore "free") On Mar 19, 2014 7:32 PM, "John Sundberg" <john.sundb...@kineticdata.com> wrote:
> ** > 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 <jdso...@shyle.net> 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:arslist@ARSLIST.ORG] On Behalf Of Zandi >> Sent: Tuesday, March 18, 2014 6:49 AM >> To: arslist@ARSLIST.ORG >> 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 <bmcremedyarslis...@gmail.com> >> 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 john.sundb...@kineticdata.com > www.kineticdata.com I 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"
