Career Objective

To enhance my technical experience and keep up with the cutting edge of technologies while using my skills in achieving the company's goals.

Executive Summary

• 6 years of experience as a UNIX/Linux Engineer and Administrator with AIX 5.x, 6.1, 7.1, HP-UX 11i, RHEL 5.x, 6.x
• Experience in installing, configuring, maintaining and troubleshooting AIX, Linux and HP-UX servers in large environments
• Extensive experience with IBM PowerVM technologies such as Micro Partitioning, DLPAR, Shared processor Pools, VIO, VSCSI, NPIV, Live Partition Mobility LPM , Active Memory Sharing/Expansion AMS/AME , Shared Ethernet adapter SEA , Virtual Switches
• Extensive Experience in Installation and Administration of Red Hat Linux8/9, RHEL 3.0/4.0/5.0/6.0 Server family
• Proficient in installation and configuration of Web Sphere Applications on Red Hat Linux
• Experience in setting up a PXE boot environment with Red Hat Linux
• Experience with installation of packages, patches, maintenance RPM updates on Red Hat Linux.
• Knowledge of VMware virtualization, ESX/ESXi 4.x, 5.x, vmwarevsphere, vcenter, vmotion and DRS
• Experience with volume management technologies such as AIX LVM, Veritas Storage Foundation VXVM , HP-UX LVM, LINUX LVM
• Hardware experience with IBM P Series P4, P5, P6, P7 , IBM X series, HP 9000, Proliant DL series
• Extensive experience with automated installation and system management technologies such as AIX NIM, HMC, RedhatKickstart, HP-UX Ignite
• Experience in Upgrading/Patching AIX Servers using NIMADM, Alt disk update, multibos, instfix, installp
• Experience in system management utilities like SMITTY, SAM
• Experience in High Availability Technologies such as HACMP/PowerHA 5.x, 6.1, 7.1 Veritas Cluster Server VCS , Redhat Cluster, HP Service Guard
• Experience in working with SAN/NAS technologies such as EMC vmax, dmx, clariion , IBM Data storage DS 8k, 6k, 4k , Hitachi, Netapp
• Worked with Multipath technologies such as EMC powerpath, AIX MPIO, SDDPCM, Veritas Dynamic Multipathing vxdmp , Redhat DM-Multipath, HP-UX Native Multipathing
• Performance monitoring using vmstat, iostat, svmon, sar, topas, nmon, top, glance
• Experience in Shell scripting using Korn, bash and Perl
• Proficient in working with TCP/IP, DNS, NFS, NIS, SSH, SAMBA, LDAP, SFTP, SNMP, Sendmail
• Installation configuration and administration of VIO Servers 1.5, 2.1, 2.2
• Excellent presentation, analytical, documentation and interpersonal communication skills.
• Experience with various performance monitoring tools such as TOP, NMON, TOPAS, VMSTAT, IOSTAT etc.
• Experienced in 24X7 on-call for unix/linux support

Technical Expertise:

• Operating Systems: IBM AIX 5.1, 5.2, 5.3,6.1, 7.1 , VIO 1.5,2.1, RHEL 4/5/6, ESX 4/5
• Hardware: IBM Power 4, 5, 6 and 7 hardware, HP 9000/750, HP Superdome, IBM X series, HP DL series
• Storage Area: Fiber Channel SAN, SCSI, SSA
• Networking: TCP/IP, DNS, DHCP, SNMP, SMTP, NFS
• RDBMS: DB2 9, 10, Oracle 10, 11, informix
• Programming Languages: C , Java, Java Servlets, EJB, VB, JavaScript, HTML, XHTML, DHTML Perl and Shell programming.

Professional Experience:

Confidential

UnixEngineer

Responsibilities:

• Performed Operational support for over 200 AIX lpars
• Installed, configured and maintained several AIX and RHEL servers
• Installed and configured 50 lpars aix 6.1 on P770 using NIM
• Worked in planning,sizing, designing and deploying vio servers, lpars, virtual switches, NPIV, LPM on several P7 servers for a SAP project
• Performed AIX server migrations in a data center consolidation project using different migration techniques including EMC SRDF
• Installed the Operating System on Solaris and Linux servers and Blades over the network.
• Built servers according to standards specified as per individual applications
• Built virtualized Linux servers on ESX and Blade servers to host multiple applications on same chassis across different server hosts
• Set up Linux servers for iSCSI LUN boot instead of using local hard disks
• Installing and configuring Apache and supporting them on Linux production servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage.
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets
• Performed lpar migrations using different techniques including live partition mobility LPM
• Performed AIX migrations from 5.3 to 6.1 and 7.1
• Performed TL and SP upgrades on AIX 6.1, 7.1 using alt disk install and multibos
• Built and configured new VIO servers with VIOS 2.2 on P770 using NIM
• Upgraded vio servers from 1.5 to 2.1 and 2.2
• Setup weekly OS backups using mksysb
• Provided support for SAN migrations from IBM to EMC and DMX to VMAX
• Configured fiber channel connections and Zones on EMC switched Fabrics
• Planned, installed, configured, tested and documented 2 node Power HA clusters using powerha 6.1
• Supported large db backup solutions using IBM flash and EMC Timefinder Cloning
• Installed and configured Commvault client 9.0 on several AIX and RHEL servers
• Provided break/fix incident support including hardware replacements
• Performed tuning on aix for oracle, db2, sap, RMS
• Responsible for setting up disaster recovery environment for AIX/RHEL servers and implemented all the DR procedures as per the guidelines
• Created and maintained scripts for support of application and AIX/Linux automation
• Installed, configured and maintained several RHEL servers 6.x
• Performed routine security patching of AIX and RHEL servers for known vulnerabilities
• Provided support by 24x7 shift rotation basis and pager support.

Confidential

Sr. UNIX System Administrator

Responsibilities:

• Installed racked and configured IBM pseries p4/p5/p6/P7 p595, p590, p570, p561, p560, p550, P770 for production, staging and test environments.
• Responsible for Remote AIX Support With more than 1250 servers.
• Responsible for regular enhanced Migration of AIX p5, p6, P7 series servers from one data center to another and migrations within the data center which also included using Live Partition Mobility.
• Installation and administration of RHEL 4.0/5.0/6.0.
• Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
• Installation of packages, patch management, volume managment on RHEL/Suse servers using YaST.
• Automation of jobs through crontab and autosys.
• Installation, configuration and administration of VMware
• Applied appropriate support packages/patches to maintain system integrity.
• Performed capacity analysis, monitored and controlled disk space usage on systems.
• Monitored system activities and fine tuned system parameters and configurations to optimize performance and ensure security of systems
• Installation and configuration of LPAR's with AIX 6.1 on p6, P7 servers.
• Responsible for performance monitoring using AIX utilities and nmon, Site view.
• Performed HACMP failover and failback as per the user's requirement.
• Experience of configuring 4 nodes cluster with multiple RG configuration.
• Extensive working experience on LVM. Creating VG, LV and FS.
• Upgrading and updating TL, APAR and patches on AIX 5.3 and 6.1.
• Perform User Account management, data backups, and users' logon support.
• Installation and configuration of NIM master server and clients.
• Creating lpp source and SPOT for client on NIM server.
• Experience of upgrading and updating frame and device firmware using HMC
• Provided UNIX infrastructure, operations and support for IBM RS/6000 7026-M80 servers and pSeries servers running IBM AIX 5.2, 5.3, 6.1.
• Performed installation, periodic maintenance updates and applied APAR fixes.
• AIX systems administration and Disk Management.
• Experience in creating and installing standalone client LPAR and VIO client LPAR using on VIO versions 1.5 and 2.1.
• Upgraded and upgrading HMC from version 6 to 7.
• Installation and configuration of VIO Server 1.5,2.1 and AIX 5.3,6.1 on client LPAR's for p 5 595, 590 and p6 570, 590 servers.
• Upgrading TSM Client from version 5.2 to 5.5
• Managing various scripts to start up and shutdown databases and SAP systems.
• Installed and configured Sudo for users to access the root privileges.
• Define/setup network protocols, Network File Services NFS , and Network Information Services NIS .
• Provided support by 24x7 shift rotation basis and pager support.

Confidential

Unix Administrator

Responsibilities:

• Responsible for installation and maintenance on p 5 520,560,570 hardware with AIX 5.3, RHEL 3/4
• Installation of patches, packages on AIX, and RHEL.
• Installed/configured EMC Storage with 0, 1 5 RAID configurations.
• Installed and maintained Security issues.
• Installed Veritas Volume Manager, VCS Cluster Server for failover and for mirroring and raid level configurations on EMC storage frames.
• Performed all System Administration tasks like cron jobs, installing packages, and patches.
• Configured Mail relaying, virtual host, POP3 and IMAP4 services and enforced security policies.
• Diagnosing hardware/software problems and provide solutions.
• Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS clients and AutoFs File systems.
• Troubleshooting system, network and user issues.
• Adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.
• Installation, Administration and configuration of LPAR's with AIX 5L on p5 servers
• Experience of creating and installing standard LPAR and VIO client LPAR using HMC
• Installation, configuration and administration of IBM Web Sphere Application Server V4.0, on AIX along with DB2 UDB IBM HTTP server with SSL for secure communication providing technical support to users
• IBM RS/6000 SP System Software Maintenance AIX System Dump Generation and sending System Dump to AIX System Support Center.
• Network management of TCP/IP networks, IP address management.
• Performing upgrades of OS and applications.
• Tested products for evaluation purposes and documented for necessary changes required as per environment
• Korn C shell scripting, mainly for scheduling jobs CRONTAB
• Inventory management for Software and Hardware.
• Disk Replacement Strategy on AIX.
• Logical Volume Management LVM of AIX.
• Performance Management Tuning of AIX UNIX Kernel
• Security, users and groups administration
• Provided support by 24x7 shift rotation basis and pager support
• Monitored trouble ticket queue to attend user and system calls.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.