SHESHA SAI SURI THIRUNAGARI
Email: nikhil@infraasinc.com
Phone: 774-275-6526
SUMMARY
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Over 8 years of professional experience in IBM AIX, POWER systems, RedHat Linux,
VMware, IBM VIO UNIX Server environment.
Experience working in server environments including IBM P750,770, P570, P550, P5520, P5-550, P5-560, P5-575, P5-590, P4-650, P4-670, EMC VMAX, VNX, Clariion,
Symmetrix, Tivoli Storage Manager, HP DL580 & DL360, Dell Poweredge.
Experience in Installation and Administration of AIX servers (v7.1,6.1, v5.3, v5.2)
Experience in Installation and Administration of IBM VIO servers and HMC
Experience in Installation and Administration of Redhat Linux servers (v5.8,v5.9,v6.3,
v6.4 & v6.5)
Experience in VMware Vsphere ESXi 5.0, 5.1 and 5.5
Experience in configuring SAN disks (LUN) in the environments which includes EMC
VMAX, VNX, Symmetrix, Clariion, IBM Total storage
Experience in configuration and administration of PowerHA, HACMP v5.2 and v5.3
cluster nodes.
Experience in software installation and patch management in IBM AIX, Red Hat Linux.
Experience in installation of Oracle database servers,weblogic servers
Experience in installation and configuration of HMC and NIM Master.
Strong experience and understanding of NFS, Automount, DNS, TCP/IP
Experience in various backup and recovery methodologies such as TSM, SRDF,
snapshot, mksysb,
Automated tasks with Unix Shell Scripts
Experience with working in Production, Development and Testing environment
Experience in Change management, Incident management, Problem Management,
Asset Management using Remedy
EDUCATION
Bachelor of Technology in Electrical and Electronics, JNT University, India
CERTIFICATIONS
IBM Certified System Administrator – AIX 6.1
IBM Certified Systems Expert – Virtualization Technical Support for AIX and Linux – v2
TECHNICAL SKILLS
OS/HARDWARE
AIX 7.1/6.1/5.3/5.2/4.3, VIO 2.2/2.1/1.5, RHEL 6.x/5.x, IBM POWER7 750, POWER6 MMA,
POWER6 550, p5 590, p5 595, p5 550, p670, p690, S85, DL580,DL360, Vmware
(ESX5.5/5.1), EMC VMAX, VNX, Symmetrix DMX4, DMX3, Clariion
SOFTWARE
NIM, HMC, HACMP, POWERHA, ECC, Powerpath, Oracle 10g/11g, db2 9.1/9.7/8.1/10.1,
TSM, ESX 5.1/5.5
St Johns Bank, MO
May 2013 - Present
Senior Unix System Administrator
Responsibilities
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Installed and configured IBM AIX, VIO and Redhat Linux servers based on
requirements
Configured virtual server using VMware ESX 5.1/5.5
Performed AIX installations through NIM servers
Upgraded HMC from V7R7.7.0 SP2 to V7R7.7.0 SP4 and from V7R7.7.0 SP4 to
V7R7.9.0 SP0
Patched AIX 6.1 servers from AIX 6.1 TL08SP02 to AIX6.1 TL09 SP03
Patched AIX 5.3 servers from AIX 5.3 TL12SP08 to AIX5.3 TL12 SP09
Perform Patching on Redhat Linux servers. (v5.8,v5.9,v6.1,v6.2,v6.3 & v6.4, v6.5)
Upgraded firmware, Microcode fiber channel adapter and Ethernet adapter
Installed and configured dual VIO servers, SEA, link aggregation and NPIV
Performance monitoring and tuning using various AIX commands (vmo, no, io,
vmstat, iostat, topas, sar, nmon, ndisk)
Worked with (Application support, H/W support, vendor support) and getting the
problem fixed within the given time frame
Configured and managed two node clusters using HACMP and POWERHA.
Used LVM, creating VGs, LVs, and disk mirroring.
Configured EMC Power path and IBM native MPIO for VIO Client LPARs
Configured Logical Unit Number (LUN) in SAN environment which includes EMC
VMAX, VNX, Clariion, EMC Symmetrix.
Backed up and restored data using TSM
Provided on call support.
WORLD BANK, WASHINGTON DC
Jan 2011 – May 2013
SYSTEM ADMINISTRATOR
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AIX System Administrator for Unix server environment which includes IBM AIX 6.1,
AIX 5.3
Installed and configured HMC, LPAR, VIO Server in pSeries servers
Performed AIX upgrade through NIM servers
Migrated AIX servers from B80, and POWER4 hardware to POWER5/POWER6
virtualized hardware
Installed and configured HMC v7.3
Configured TSM Client in AIX
Installed and configured dual VIO servers, SEA, link aggregation and NPIV
Implemented AIX service strategy
Performed patching for IBM AIX servers from NIM servers
Configured NIM environment and performed network installation of AIX
Configured and troubleshot HACMP.
Application and in-house software installations
Unix shell scripting for automation.
Configured Logical Unit Number (LUN) in SAN environment which includes EMC
Clariion, EMC Symmetrix, EMC Powerpath
Configured TSM Server and TSM clients on AIX servers
Performance monitoring and tuning using various AIX commands (vmo, no, io, vmstat,
iostat, topas, sar, nmon)
Documented system parameters and Backup and Disaster recovery Processes
FREDDIEMAC, RESTON, VA
Jan 2009 – Dec 2010
UNIX SYSTEM ADMINISTRATOR
Responsibilities
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Installed and configured IBM AIX, Red Hat Linux, HMC, LPAR, VIO Server in
pSeries and Dell poweredge servers
Performed AIX installations through NIM servers
Migrated AIX servers from POWER4 / POWER5 hardware to POWER6/ POWER7
virtualized hardware
Migrated LPARS from AIX 5.3 to AIX 6.1 using HMC, NIM master and NIMADM
Configured IBM POWER7 p770, p750, POWER6 servers with HMC v7
Installed and configured dual VIO servers, SEA, link aggregation and NPIV
Implemented AIX service strategy and performed patch installations for IBM AIX
servers from NIM servers
Configured NIM environment and performed network installation of AIX
Installed and configured HMC v7.7
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Experience in configuring virtual server using VMware ESX3.5/ESXi 4.0/ESXi
4.1/ESXi 5.0
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Perform Patching on Redhat Linux servers. (v5.8,v5.9,v6.1,v6.2,v6.3 & v6.4)
Installed and configured new Redhat Linux servers based on requirements
Added disk & upgraded the VMware tools in VMsphere client
Migrated of Physical Redhat Linux servers to Virtual Redhat Linux servers
Backed up and restored data using TSM, mksysb, alternate disk, NIM master
Configured EMC Power path and IBM native MPIO for VIO Client LPARs
Configured Logical Unit Number (LUN) in SAN environment which includes EMC
VMAX, VNX, Clariion, EMC Symmetrix.
Performance monitoring and tuning using various AIX commands (vmo, no, io,
vmstat, iostat, topas, sar, nmon, ndisk)
Provided on call support.
NEUSTAR, CA
MAY 2007 – NOV 2008
SYSTEM ADMINISTRATOR
Responsibilities
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Provided system support for 2000+ midrange IBM including routine Production support,
maintenance, patching, and system backups and restoring, and software and hardware
upgrades
Maintaining and monitoring the file systems and performance tuning on AIX
(5.1/5.2./5.3) servers (615/640/690 /510/550/ 52A/55A/ 570/595).
Responsible for mirroring and unmirroring using logical volume manager (LVM) and
Veritas volume manager (VVM (4.0/4.5))
Working on UNIX platforms like Linux /AIX (4.3/5.1/5.2/5.3)
Executed scripts for OS Installation, performance matrix and mksysb image script.
Applying the Security patches and doing all the change management.
Responsible for system partitioning (LPAR) and operating system installation using
HMC
Responsible for performing administration tasks on DLPAR such as adding, deleting and
moving system resources from one partition to another partition
Worked on Linux x86, Windows 2003 Server
Edited and Developed Shell scripts to create user on multiple servers
Good knowledge of TSM Administration
Expertise in doing NIM installations on AIX 5.3
Installation Virtual input/output server (VIOS).
Wrote Unix shell scripts, performed OS and database installations and administration