Linux on Aetna. March 25, David Lacey AIS

Transcription

1 March 25, 2010 David Lacey AIS

2 Agenda Aetna Background OC Background OC Our Stack Details Conclusions oday: Where Are We? What s Next age 1

3 Aetna aken from Aetna.com Aetna is one of the nation's leaders in health care, dental, pharmacy, group life, and disability insurance, and employee benefits. Membership: 17+ million medical members 14 million dental members 10+ million pharmacy members age 2

4 Aetna Mainframe n. An obsolete device still used by thousands of obsolete companies serving billions of obsolete customers and making huge obsolete profits for their obsolete shareholders. And this year's run twice as fast as last year's. he Devil's I Dictionary (after Ambrose Bierce) he Year: 1966 he 1970 s MV ---- MVS ---- VM ( C/CMS ) he 1980 s ROFS!! Aetna is one of the first Commercial customers of the new IBM 360 Computer he 1990 s Sysplex ---- DB2 Data-Sharing Aetna Retires the eddy Bear age 3

5 Aetna Information Services Aetna has 2 Data Centers in C hey provide DBAR for each other age 4

6 Aetna Mainframe Layout Our Linux On Z OC was done here age 5

7 Linux on Z OC Background Aetna started server consolidation early 2000 s Solaris and AIX Windows We did a Linux on Z OC in 2005 Suse (Bare Metal) Could not cost justify at that time Started Movement to Linux on and/or VMware age 6

8 OC OC starts in late 2007 Drivers: RedHat --- z/vm (he eddy Bear come out of retirement) A cast of thousands Green Aetna MCC is closing in on KVA Limits Available CU s on existing CEC s OC ended in June, 2008 All major components tested Volume tested databases age 7

9 OC Goals Goals: Results: Handle Aetna Business Apps Move to new hardware Move between LARS Develop Operational rocess Handle Aetna Business Apps Move to new hardware Move between LARS Develop operational process age 8

10 Aetna Stack age 9

11 OC Details est Results - Application We tested 3 Databases WAS / MQ 1. 2 Oracle Databases Oracle running on RHEL UDB Database UDB V8 on RHEL Base product testing 2. WAS on RHEL WAS on RHEL MQ on RHEL 5.1 age 10

12 OC Details est Results - Infrastructure Linux Guest Moves 1. From 1 LAR to a second 2. Collapse back to one VM LAR Moves 1. z9 to z10 Seamless 2. hen back again ivoli Storage Manager (SM) HiperSockets age 11

13 OC Details est Results - Operations Memory - CU 1. Virtual vs Dedicated 2. Dynamic allocation 5.4 has helped, need Linux on Z adoption Monitoring / Capacity 1. Mainframe & Midrange Support 1. Linux is Linux 2. VM / Linux / Storage support all work together age 12

14 Conclusions It Works!! z10 CO Has increased the available resources for Linux on Z A relative thing (CO vs CA). One of our major drivers today is power Migration Low Hanging Fruit gone!! (consolidation, Linux on, VMware) Establish some internal applications to operationalize Linux on Z age 13

15 oday June 2008 => oday ressure Need Green relief quickly Focus became Delivery not reparation he Bar Fight o prove environment took non critical app Alligators (vs draining the swamp) lanview ivoli roduct Suite Communications Server age 14

16 LAR 01 LAR 02 2 rod LARS Middletown VM2 zvm LAR 03 VMZ zvm VM1 zvm LAR 04 LAR 05 LAR 06 oday An Isolated Stress LAR Finally Our Oracle LAR VW1 zvm VW1S zvm DBAR 05 DBAR 06 LAR 14 DBAR 07 DBAR 08 wo est LARS VW2 zvm VW1 zvm Windsor VW2 zvm LAR 15 LAR 16 We still have Our original OC LARS 2 rod LARS 35 IFLs 156 gig memory 25,000+ mips S LAR 17 S LAR 18 S LAR 19 DBAR 09 DBAR 10 DBAR 11 S LAR 20 DBAR 12 lex 04 lex 06 S S AEVM zvm AEV2 zvm DBAR 13 DBAR 14 lex 01 lex 02 lex 03 lex 05 lex 07 LAR 07 LAR 10 DBAR 01 LAR 09 LAR 11 LAR 12 S LAR 13 DBAR 02 DBAR 03 DBAR 04 LAR 21 LAR 23 LAR 25 LAR 27 LAR 22 LAR 24 LAR 26 DBAR 15 DBAR 16 LAR 28 LAR 28 age 15

17 oday What We Are Running oday We have 2 applications, and a suite lanview: roject Management ool Application Runs on Windows Servers Database is Oracle on LoZ Comm Server Communications Server: Oracle/lanview Comm Server Replacing Cisco CIS for N3270 raffic 80,000 sessions per day Mission Critical Run on 4 CECs 2 in each Datacenter We have pushed the limits a little Found a Knee at 3,500 session/guest Need 20 Linux Guests age 16

18 oday What We Are Running oday We have 2 applications, and a suite ivoli Service Management Center : ivoli Application Discovery & Dependency (ADDM) ivoli Business Service Manager (BSM) ivoli Common Reporting (CR) Netcool Omnibus, E, EMS, IM, etc 27 guests built to date (potential over 80) Some Challenges -SMC age 17

19 What s Next? latform Selection : IBM Calls it Fit for urpose Selectica (OC => used too much Memory) Maturity 2 more Business Apps (OC to rod if OK) Maturity : IL s and ORs HA Operational Readiness Organizational Challenges age 18

20 Questions? hank You!! David Lacey age 19