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"
