2008/6/23 Timothy Sipples <[EMAIL PROTECTED]>: > You can be darn sure the card approval service -- the GDPS-based (likely) > application that approves or denies your card transaction -- is still > working round the clock. So the mainframe is still working. > > Chances are the Web front end is not (yet) on the mainframe, and that might > be the problem. There could also be problems with the architecture -- > somebody might have thought it would be a good idea to replicate the > billing database, and so that has to close when the master billing database > is in a batch cycle because it would be out of sync and present the > customer with an old version of the truth. > > Now, the Web customer self-service applications might have very different > SLAs than card approval, and that might even be a sensible business > decision.... [snip]
I use Google Adwords on a very small scale, and I am amused to see that every few weeks they have what they call a "short scheduled downtime", usually in midday Saturday. In their case, "short" is 5 1/2 hours! Well it's only the admin interface; the ads continue to be served and the money collected, but still - what are they doing with their hugely multi-processor architecture that requires this? Tony H. ---------------------------------------------------------------------- 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
