Date post: | 16-Dec-2015 |
Category: |
Documents |
Upload: | miles-scot-payne |
View: | 223 times |
Download: | 1 times |
66
Prediction #1
• “I believe OS/2 is destined to be the most important operating system, and possibly program, of all time.” Bill Gates, 1987
77
Prediction #2
• “The last mainframe will be shut down by 1996” Stuart Alsop, 1991
HAL9000 became operational on 12 January 1997
88
Cloud – 21st Century
• The mainframe is still alive because business-critical applications run there– 80% of business data is stored on mainframes
– 200 billion lines of COBOL (adding 5 billion a year)
– 1 trillion dollars of application value
– 50 billion devices connected to z/OS by 2020
– 43 billion banking transactions in 2013
• The mainframe evolved– Unix
– Linux
– Petabytes of data
• The cloud providers are trying to recreate the mainframe on another platform
99
• The web did not kill print
• MP3s did not kill the record industry
• The mobile phone did not kill the desktop
• Cloud computing has not killed off the mainframe
• The mainframe is a 50 year old machine that has evolved and improved
• You could say the mainframe of old really is dead, but adapting to each new IT disruption has changed it into a different beast
1010
z/OS Market TrendMIPS vs. Customers
Growth Steady Declince Eliminated0
10
20
30
40
50
60
70
MIPS Utilization
20122013
Small Medium Large Small Medium Large2012 2013
0
10
20
30
40
50
60
70
80
Mainframe Outlook
GrowingSteadyDeclining
Overall MIPS utilization within the market is expected to grow…
…while small and some medium customers are anticipated to leave mainframe environment.
10,000 mainframes worldwide
1111
Prediction #3
• “I think there is a world market for maybe five computers." Thomas Watson, chairman of IBM, 1943
1515
UPS Blue Christmas
“A slow application is a down application”Before Christmas last year UPS was struggling delivering packages. Customers were repeatedly checking from their mobile devices to see where their packages were. Every day people were sending 2, 3 or more requests to get an update on their package status. Each request sends an MQ message to the MF which gets processed in CICS before sending it back to the user. The CICS regions failed to keep up with the new increased activity.
1616
Quick Fix
“Zero Balance in Your #Chase Account”(Twitter post re: Chase Mobile App Outage)
“JPMorgan Chase customers see zero balances after technical glitch”
(ComputerWorld)
“Has #Chase been hit by hackers?”(Twitter Post)
IMS DB2
1717
Application Complexity
Web Servers App Servers
CICS DB2
CICS
CICS
CICS DB2
CICS
CICS
CICS DB2
CICS
CICS
1919
Aging Workforce
40% of CIOs have no formal plans in place to handle mainframe skills
shortage.
66% of CIOs fear the impending retirement of the mainframe workforce
23
DevOps in a Nutshell
Share knowledge
DevOps is confusingFaster is betterSoftware is the interface for consumptionTest in productionFailures will happenGive people tools and trust themMeasure everythingGather feedback
24
Why DevOps and Why Now?
US Air Force dog fight victory study
The answer was not a faster jet
The answer was not more fire power
The answer was the pilot that could react to change faster won most of the time
25
Why DevOps and Why Now?
It’s all about reducing cycle time between delivering software updates
Software automates the business processSoftware extends the business functionality
Software disrupts the business model (massive change in a short period of time)
26
Why DevOps and Why Now?
It’s all about a competitive advantage
AMEX is afraid of Apple Pay because the latter can respond faster to customer needs
DevOps is critical to business survival
Continuous delivery is all about removing the bottlenecks that stop you from delivering value to the customer.
Software rollout horror story7 departments involved in a single release deployment that took 3 months
27
Agile
Agile does not mean doing more with less
Compuware is going agile
Agile is part of DevOps but is not DevOps
28
The Best Place to Test is in Production
Deploy code to 1 or 2 servers
Enforce failures and see what happens
If you do not proactively test failure your customers will test it for you.
It is a controlled environment
It is easier to restore service with experts at the ready than at 3:00 AM
You need to test the defect-handling code!
Need to discover what normal looks like when things are abnormal
29
Computers are useless. They can only give you answers.
Pablo Picasso
A Final Thought….