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Manager System Administrator

Location:
San Antonio, Texas, United States
Posted:
January 29, 2018

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SURESH MANOHARAN

E-mail: ac38sk@r.postjobfree.com Cell # 682-***-****

SUMMARY:

** ***** ** ********** ** administering different flavors of Unix and Windows.

Knowledge of volume managers(LVM, Veritas Volume Manager, Solaris Volume Manager).

Knowledge on Cluster technology(Veritas Cluster Service, HACMP Power HA).

Experience on Solaris Zones,LDOM,ZFS along with Soalris OS migration10 to 11.

Experience on file system creation on Redhat(GSF, Ext3/4, GlusterFS/CEFS/pNFS) and AIX(JSF) and Solaris(UFS).

Performed patch and package administration in UNIX servers.

Implemented security tools like Seos Powerbroker and worked in Centrify AD access.

Involved in setting up NIS, NFS, AutoFS, and CacheFs Sun Server and experience in securing the operating system.

Experience on hardware replacement and planning and building secured systems.

Raising support calls with vendors and involved in post mortem analysis for server problems.

Experience in IPMP (IP Multipathing) in Solaris and bonding in Linux.

Experience in configuring Oracle ASM disks and supporting Oracle RAC (Real Application Cluster) Database in Redhat/Aix.

Maintained and administered the tasks periodically like cleaning of system log files, removing temp files, checking file system for scheduling job automation.

Worked in Bash Shell Scripting for automation purpose and Developed health check/Post build checkout script for Linux, Solaris and Aix servers.

Extensively experience in the design and implementation of Continuous Integration, Continuous Delivery, Continuous Deployment and DevOps processes for Chef project, working with technologies and platforms including Java, Jenkins, Oracle, MySQL, MongoDB, VMware, AWS, across the Financial Sector.

Experience with change control tools like Remedy and ServiceNow.

Provided technical support for backup/restore performing System Backups from tapes.

SKILLS SUMMARY:

Operating System

Solaris 11/10/9/8, IBM AIX (5.3, 6.1), & Red Hat Linux 4/5/6, Windows NT 4.0/2000/2003/XP.

Hardware

Sun Enterprise E5000/5500/6500, Sun Fire 3800/4800/6800, E10K/15 Series server, T Series, M Series Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers.

Third Party Tools

Veritas Volume Manager, Logical Volume Manager, RAID, Veritas Cluster, VMware ESX Technologies. Powerbroker, Chef, AWS, TPM, Jenkins and RHEL Satellite 5/6

Web Application Server

Apache, Tomcat,Websphere

Backup Software

Netbackup(Client Side)

Network/Naming Services

NIS, NFS, AutoFS, DNS, DHCP

Monitoring Tools

Sitescope, Tivoli, BMC, HP-BSM(Omi)

TECHNICAL TRAININGS:

Linux Jump Start for Unix administrators

Sun Solaris 10 Training

VERITAS Volume Manager and Cluster Services

AIX Jump Start for Solaris Administrators

AIX HACMP Training

PROFESSIONAL CERTIFICATIONS:

Certified VMware Data Center Virtualization (VCP 5.5)

Certified IBM pSeries - Administration and Support For AIX 6.1

Certified Systems Expert - High Availability for AIX Technical Support and Administration (HACMP).

Sun Certified System Administrator for Solaris 10 OS(SCSA)

Sun Certified Partner Field Engineer, Level-2 (PE2)

Microsoft Certified Professional. (MCP)

PROFESSIONAL EXPERIENCE:

Capital Group, San Antonio, Texas Dec 2016 to Till Date

Role: Lead System Administrator

Responsibilities:

Working in VMware cloud environment to build the virtual machines on Linux and Windows environment (Compute).

Build and Support Tomat,Weblogic and Oracle servers using CHEF devops automation tool in VMware cloud infrastructure.

Installation and configuration of Redhat virtual servers using ESXi 4/5 and Solaris servers (LDOMS) using scripts and Ops Center.

Experience in managing VMware Virtual Hardware, Memory, NIC, VDISK and VMAX storage migrations.

Migration experience in Soalris10 to 11 and Redhat Linux5/6/7 P2V.

Experienced in package and patches management on Linux and Solaris servers, firmware upgrades and troubleshooting.

Addition and configuration of SAN disks for LVM on Linux, and Veritas Volume Manager.

Configuration and troubleshooting of NAS mounts on Solaris and Linux Servers.

Configuration and administration of ASM disks for Oracle RAC servers.

Analyzing and reviewing the System performance tuning and Network Configurations.

Supported various teams including database and middleware team with distributed fs like GlusterFS/CEFS/pNFS.

Working in Data Center monitoring using HP BSM tool (Omi).

Configured and maintained Multipathing in Solaris and Linux.

Managed Physical volumes, Volume Groups, and Logical volumes using Logical Volume Manager.

Tuned OS parameters like Swap and virtual Memory settings to improve the Jboss performance.

Configured Apache for Jboss domains with virtual Servers.

Troubleshooting and analysis of hardware and failures for various Solaris, Redhat Unix servers (Core dump and log file analysis).

Environment: Linux RHEL 5/6/7, Solaris 10/11, Windows(2008/R2, 2012/R2), RHEL Satellite 5/6.

VMware Cloud, VRealize, CHEF, WebLogic Server 8.1/9.x, Apache HTTP Server 2.0, Centrify(AD), LDAP, JDBC, XML, Oracle,Sybase and Autosys.

Fidelity Investments, Durham, NC July 2016 to Dec 2016

Role: Senior System Administrator

Implemented SUDO, SSH and other security tools.

Redesigned and redeployed the Nagios implementation.

Good Knowledge of NAS and SAN concepts and technology.

Experience in providing operational/production support for PerlFTP and Tibco MFT download engine including http and sftp integration with FTP module.

Improving the security of file transmissions of data feeds

Monitoring and usage tracking of the data feeds and Adapting standards for the feeds

Periodic checks of production and development systems; CPU utilization, memory, disk utilization, network connectivity, system log files, etc.

Working in Autosys job scheduler, Updating JIL configuration, support and maintenance.

Environment: Linux RHEL 5/6/7, Autosys, Tibco MFT, PearlFTP, VMware Cloud, VRealize and CHEF

Citigroup, Irving, Texas Sep 2008 to July 2016

Role: Lead System Administrator

Responsibilities:

Configuration and upgradation of Linux, Solaris and AIX Operating Systems.

Configuration of NIS+, NFS, DNS, DHCP servers in Solaris, AIX and Linux environment.

Experience in user and group administration, management and archiving.

Responsible for upgrades to RedHat Linux with Software packages, patches and maintained them in accordance with established policies, procedures and service level agreements.

Experience in building Linux virtual servers by using VMware ESX 5.

Responsible for configuring and maintaining global and local zones.

Creating metadevices, soft partitions, mirroring, detaching and clearing the devices and metasets using Solaris volume management also PV migration on AIX servers.

Performing new disk allocation and LVM creation on Linux/AIX servers

Coordinating for the controlled COB switchover and actual COB switchover.

Installation, configuration and management of Veritas Volume Manager & Veritas File System.

Created disk groups, volumes with RAID architecture and layered volumes using VxVM.

Performed automated installations of operating systems using Jumpstart for Solaris, and Kickstart for Linux and application/DB server deployments/configuration.

Managed Veritas Cluster Server, configured new service group & resources for new application in Veritas Cluster Server.

Performance monitoring and performance tuning using top, prstat, vmstat, ps, iostat etc.

Experience in writing scripts for automation of jobs.

Supported servers running various application and database including oracle RAC (Real Application Cluster) and Experience in adding and configuring devices like hard disks and backup devices etc.

Provided 24x7 supports on pager rotation basis.

Installation, Configuration & Upgrade of Linux, Solaris, AIX operating system.

Installed, configured and maintained Web and Application Servers including Apache, tomcat and jboss.

Creating new file system, managing & checking data consistency of the file system.

Good experience in installation/upgradation of VMware ESXi 4.1

Prepared documentation of understanding, deployment instructions for production releases and updated operation procedures.

Configuring NFS, Auto-mount and disk space management on SUN servers.

Installed and configured Zones on Solaris and Administered file system and volumes Logical Volume Manger on Linux.

Installed and configured Veritas Volume Manager for development, test and production environments.

Package management including install, remove, update and querying packages using Yum and RPM tool on Linux.

Worked in environment containing Solaris zones/containers and involved intensively in troubleshooting the issues by finding out root causes, analyzing core dumps.

Responsible for installing, configuring, maintaining, upgrading and troubleshooting EMC powerpath on Solaris 10 and Linux.

Experienced in decommission the servers as per the client process.

Involved in 24/7 high availability on pager rotation basis and coordinated efforts with the offshore team.

Environment: Linux RHEL 4/5/6/7, Solaris 8/9/10, AIX 5.3/6.1, Windows, Sun Enterprise Server, SunFire 6800/ E6500/ E4500 & E3500, Sun V440, V490, TSeries, MSeries, HP-9000, rx8640, K, L, N Class Server, IBM RS/6000, pSeries Server,VMware, CHEF and TPM

Vays InfoTech Pvt Ltd, Bangalore (India) Aug 06 - Aug 08

Customer Support Engineer

Responsibilities:

Helping Clients resolving issues related to the backup and restore of Solaris, Linux,

Determining the problem between hardware and software.

Building new server in Linux, Solaris and Configure new SAN, NAS in server level.

Handling Escalation for Solaris, AIX and UNIX related issues.

Supporting L2 level BAU stuff for Solaris, Red hat and AIX.

Troubleshooting VXVM and Data Center support

Environment: Linux RHEL 4/5, Aix, Solaris 8/9/10, Windows XP/2000/2008

iNest InfoTech Pvt Ltd, Bangalore (India) Jun 05 - Jul 06

Desktop Support Engineer

Responsibilities:

Troubleshooting problems related to high CPU, Disk on Solaris, Redhat servers.

Supporting end users and performing system backups.

Monitoring system activities and reviewing system log and cleanup.

Keeping software up to date. Installation of kernel patch and packages.

Resizing the file system in SVM. Creating metadb and volumes in SVM

Implementing root mirror in SVM and Adding external storage and troubleshoot when external storage will have issue.

Recovering the unstable servers and replaced bad drive online in SVM.

Environment: Linux RHEL 4.x,5.x, Solaris 8/9, Windows 98/XP/2000



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