SUMMARY:

• Designed and implemented more than 10 Parallel Sysplex environments including DB2 Data Sharing and CICSPLEX (CPSM).
• Performed numerous Operating System upgrades (MVS 5.2.2 è OS/390 1.2 è z/OS V1.4, V1.6, V1.8, V1.11 and V1.13) utilizing Server - PAC, Custom-PAC, CBPDO and CBIPO installation methodologies.
• Participated and led z/OS team in numerous large/small scales upgrades, latest being upgrading IBM z9 processors and In-Range FICON Switches (Directors) to IBM z196 and IBM 384B SAN Switches respectively.
• Designed and implemented the 1st GDPS/PPRC, Hyper Swap and GDPS/XRC (MzGM) in the Middle East.
• Implemented, supported and maintained System Managed CF (Coupling facility) Duplexing, Logger maintenance, Coupling Facility policy (XCF, CFRM, SFM, ARM, WLM, LOGR, OMVS), updates.
• Performed RACF Administration activities including DSMON, Report Writer, Database maintenance tasks (IRRUT200, IRRUT400, IRRMIN00). In addition, wrote nearly 20 Productivity Tools in Rexx and Assembler for enhancing readability of RACF reports.
• Implement, monitor & adjust WLM (Work Load Manager) configuration in meeting business workload requirements on a regular basis.
• Perform regular DASD & Data Management functions including DFSMS, DFHSM, ICKDSF, DFDSS and DFRMM. This also included writing several home grown programs in Rexx & Assembler to facilitate in identifying discrepancies between these components and system catalogs.
• Optimize DFSMS ACS routines as deemed appropriate.
• Developed housekeeping DFRMM, DCOLLECT and NaviQuest reports.
• Planned, installed and implemented IBM ATLs and VTS’ including their interfaces to DFSMS (TCDB) and DFRMM (CDS).
• SMF data (Daily, Weekly, Monthly) Collection, Consolidation and Reporting.
• Automated the JCL generation and execution of DISK volume backups using combination of DFDSS, JCL, Assembler and SA390 scripts.
• SA390 (AOC) Mainframe Automation and Monitoring of Tasks and Messages during System /Sysplex life cycle (Startup è Shutdown) as well as SA390 Scripts in relation to GDPS.
• Perform trouble shooting and diagnosis of System SVC DUMPS utilizing IPCS.
• Proven experience in performance reporting, trouble-shooting, and problem resolution using real-time IBM RMF Monitors and Batch Reporting using IBM Spreadsheet reporter, trend analysis using OVERVIEW reports, SAS and MXG.
• Provide expertise as lead Hands-On z/OS specialist in mainframe platform including architectural direction and evaluation of Disaster Recovery setup.
• Support and maintain SMP/E zones, USERMODS, UCLINs, JCLINs, etc.
• Generate DISK Space Utilization Reports & Charts using DCOLLECT, Rexx and Excel.
• Perform IODF (IOGEN, MVSGEN) activities using HCDs. Definitions for defining/modifying Processors, Channels, Control Units, Tape and Disk Devices, Port definitions in ESCON/FICON directors, Coupling Links, STP and Automatic/Virtual Tape Library subsystems.
• Code, test and implement variety of System EXITS (SMF: IEFACTRT, IEFUJV, RACF: ICHRDX01, ICHRIX01, DADSM: IGGPRE00).
• Develop tools to automate and introduce efficiencies using CLISTS, REXX Execs and ISPF Dialogues as required. The latest tool I developed was an ISPF dialogue for generating control statements for all functions of PPRC Peer-to-Peer Remote Copy). This tool helps Storage Administrators in maintaining/recovering Disk Storage PPRC pairs without needing GDPS.
• Collect SCRT (Sub-Capacity reporting Tool) for subsystems billing. This is a requirement of WLC (Workload License Charging) pay-per-usage policy.
• Installation and implementation of several versions of CICS TS (3.2, 4.2), DB2 (V3, V4, V8, V9), MQereis (6.1, 7.0), zWAS (Web Sphere Application Server under z/OS) versions 3.5, 4.0, 5.1 and 6.1.1 .
• Proven problem determination and trouble shooting skills, immediate remedy for resumption of service and root cause analysis in collaboration with other departments deemed as appropriate.
• Organize and manage projects to deliver improvements for meeting customer requirements including coordinating activities in ensuring successful delivery of projects.
• Provide technical guidance in structuring RFP for clients of different size and budgeting requirements meet their processing objectives such as HW, SW, ISV offerings and SLA.
• Perform capacity planning using IBM internal tools: CP2000 & CP3000, RMF-DISK and RMF-Magic.

TECHNICAL SKILLS:

Hardware: Variety models of IBM 3033, 4381, 3081, ES/9000 including latest models (z9, z10, z114, z196). Variety of DISK storage subsystems including RVA, ESS SHARK (F20, 800), DS8K (DS8100, DS8300, DS8700 and DS8800). Variety of Tape storage including IBM 3590 Magstar, VTS/ATL ATL (TS7720, TS7740, TS3590). Variety of switches, In-Range ESCON/FICON Directors & Brocade SAN384B Switch (FICON Directors).

Software: zSeries(z/OS) OS/390, MVS, Parallel Sysplex, GDPS/PPRC, GDPS/XRC(MzGM), GDPS/IR, GDPS/XD, JES2, RACF, ICF, VSAM, UNIX (USS), ZFS, HMC, zSECURE, RMF, WLM, DFSMS, DFHSM, DFDSS, DFRMM, ICKDSF, TSO, ISPF, SA390 (AOC), TWS (OPC), SMP/E, ICSF, IPCS, ASSEMBLER, CLIST, REXX, IDCAMS, TDMF, Stop-X37, Compuware (FILE-AID, ABENDAID), ZEKE, ZEBB, VANGUARD. Monitoring tools: (Tivoli OMEGAMON-XE for zOS, Storage), A-Netmaster, CA-SYSVIEW, CA-Vantage, CA-OPSMVS), BMC (Control-M, Mainview) and TMON.

PROFESSIONAL EXPERIENCE:

Confidential

Lead Advisory IBM z/OS, Storage & Performance SME

Responsibilities:

• Provided an in-depth assessment of DFSMS including redesign of ACS routines and SMS constructs (DC, MC, SC and SG).
• Migrated Production CCB core banking application data (1,100 TB) from

  DS8300/DS8700 è DS8800 using TDMF and PPRC Hyper Swap functions.

• Implemented GDPS/PPRC and GDPS/XRC on the newly acquired storage subsystem (DS8800) at CCB.
• Acted as senior advisor in “Physical Data Center Relocation” project for moving two CCB Production environments to a third location. This included IBM z9 è z196 IBM 9037 è IBM SAN 384B and a rebuild of GDPS/PPRC GEOPARM scripts.
• Led and worked with local team in designing “New Generation” Data Center which will consolidate as well as replace CCB’s three Production environments.
• Led and assisted in implementing IBM TS7700/TS3590 Tape management system at CCB (China Construction Bank).
• Generate, prepare and present Monthly RMF performance reports including KPI and recommendations to CCB senior management and steering committee.
• Prepared and presented WLM (Work Load Manager) workshop for PBC (China Central Bank) including a complete Health Check.
• Prepared and presented DFRMM (VRS, New features and facilities) workshop to CCB.
• Overseeing multi-site hardware/software upgrades of z/OS and its supporting subsystems.
• Provided in-depth assessment of DFRMM (Tape Management System) and VRS (Vital Record Selection) including recommendations to ABC (Agriculture Bank of China).
• Developed “White Paper” about VRS’ internal working mechanism. This paper sets guidelines and recommendation for implementing proper VTS Tape Retention policy.
• Developed and implemented DISKMAP application for IBM storage subsystems. The map shows: CUNUM, CUADDR, SMS attributes, Capacity, PPRC Secondary unit, XRC Target, Flash Copy and Performance attributes (e.g. Write-Pacing, etc).
• Implemented DFHSM in Test/Development and produced implementation project plan for customer to do the same in Production.

Confidential

Data Center Team Leader

Responsibilities:

• Installation and upgrade of IBM System z Platform design and migration from Z900 è Z9 è Z196
• Installation and upgrade of Storage subsystems from IBM from RVA è ESS F20 è

  Completed installation of IBM 3590 Magstar drives and moving corporate data from STK to IBM 3590 cartridges.

• Developing and evaluating RFPs for software & Hardware acquisitions in accordance to budget, security and corporate policies.
• Provided new and enhanced architectural solutions for improving performance as well as reducing software cost on customer’s “n-way” Data Sharing Parallel Sysplex.
• Led a technical team in design and implementation of the newly build DR site part of a 3 - site recovery solution.
• Designed, planned and implemented 3-site disaster recovery solution utilizing IBM Global Mirror solution namely GDPS/PPRC, GDPS/XRC(MzGM),and GDPS/IR (Incremental Resync).
• Led the cryptographic project by activating RACF Digital and ICSF services as POC in Test in z9 platform. Configured TCP/IP to use SSL for 3270 apps.
• Led a technical team in Implementing RBAC (Role Base Access Control) in RACF to streamline definitions and facilitate authorizing and revoke of access.

Confidential

Sr. System Architect & Technical Team Leader

Responsibilities:

• As an OS/390 specialist and team leader, I had to develop RFP, SOW and detailed Project Plan based on a perfect migration solution for relocating STC s Two Production Billing System platforms from UNIVAC/ SPERRY to IBM z900 during a tight implementation window without disruption of service. My responsibility included collaborating with IBM hardware team as well as supervising the software installation of Operating System (OS/390), Subsystems (CICS, IMS, DB2) and Program Products (File - Aid, Abend-Aid, SAS, MXG, Omegamons, CA1, CA-7 and CA11). Additionally, I was the single point of contact between STC and SBM in ensuring project was moving forward flawlessly and on schedule as per agreed contract.

Confidential

Sr. Advisory Systems Specialist & Technical Services Manager

Responsibilities:

• I joined Aurora as an IT Mainframe architect to assist in migration from Amdahl to IBM 4381 in addition to installation, upgrade and support of MVS operating system and ISV (3rd party) products. Developing a Disaster recovery site for Aurora suddenly became a top priority that included a full site design, acquiring the necessary hardware in establishing T1/T3 Leased Lines linking Aurora to Comdisco (It Services for Business continuity) in Northern California. Shortly after, I was promoted to Technical Services Manager while maintaining my technical hands-on duties. As the manager, I needed to perform routine personnel appraisal, hiring, mentoring, budgeting and planning for Hardware/Software acquisitions and upgrades.
• I joined VONS retail assuming more advanced role in Technical Services department. Installation and 24x7 support of MVS operating system including maintenance of RACF, JES, SMF exits, ISV (3rd party) products, Zeke(Job Scheduling) and Zebb(Automated Restart) were part of my routine duty. Later on, became involved in Performance and Tuning aspect of IBM mainframes utilizing tools such as RMF, SAS, MXG and MICS to produce reports, analyze and recommend tuning enhancements to senior management.