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System Administrator Resume Profile


  • 7 Years of experience in heterogeneous and complex IT environments.
  • Expertise in Unix, Red Hat Linux Enterprise 4,5,6, CentOS, SUSE 9, 10, 11, Solaris 8, 9, 10, Networking, Programming Shell and Perl scripting , Databases, Software, and Hardware.
  • Experience in Managing VMware ESX servers running ESX 3.x/4,x/5.x running on HP/Dell/IBM HW including C7000 Cisco UCS HW and supported 500 VM's running Linux and Windows.
  • Involved in supporting VMware ESX Cluster environments and supported VMotion on VM's and Storage VMotion during Storage Migrations.
  • Experience includes installation, configuration and maintenance of Applications on Solaris, Red Hat Enterprise Linux, different flavors of UNIX and all versions of Windows.
  • Experience with Linux Kick Start and Solaris Jumpstart installation methods.
  • Worked on designing and implementation of Datacenter migrations using VMWare Tools.
  • Installing, Configuring and Maintaining DNS, NIS, NFS and Auto FS.
  • Hands on experience in administration and maintenance of application services like Mail, HTTP, Apache Tomcat, Squid, DHCP, SMTP, FTP.
  • Experience supporting Veritas Cluster 4/5 and Redhat Cluster running on Linux and Solaris servers to support high availability for Oracle DB servers.
  • Experience working with SAN NAS environment's like EMC Clariion and NetApp filers.
  • Experience installing and managing multipathing software's like EMC Power path and Native multipathing device mapper and MPXIO on Linux, Solaris and AIX.
  • Worked with OS Virtualization using VMWare ESX 3/4/5 and performed ESX upgrades from 4.1 to 5.0 and 5.1.
  • Created Linux and Windows VM's on VMWare ESX environment.
  • Experience working with VMWare tools like vCenter vSphere to manage VM's running on ESX cluster nodes and also experience working vMotion.
  • Worked with Potocols like NIS, NFS, Samba, and TCP/IP on Linux server environment and LDAP client-server model to retrieve and manipulate data.
  • Exposure to Veritas NetBackup and disaster recovery planning.
  • Implemented RAID levels Raid 0, Raid 1, Raid 5 for Disk management thro LVM / VERITAS Volume Management. Upgrading normal file systems to RAID levels for growing size/redundancy requirements. Replacing bad drives. Recovery of data from crashed Volumes and disk groups
  • Worked with Backup Team to Configure the Master and Client Backup servers Using Veritas Net Backup and Recovery from tapes using ufsdump, ufsrestore, and tar and cpio file system administration.
  • Troubleshooting various problems when working with VxVM in initializing, replacing, mirroring, and removing disk devices.
  • Performed Consistent OS, APP Backup and Recovery Operations on Solaris servers and Linux, Windows Servers.
  • Implemented and enhanced scripts using Korn, C shell, Bash and Perl Scripting and experienced in scheduling jobs using Crontab and At.
  • Worked with Solaris Packages and Patches , Red Hat Package Manager RPM and YUM.
  • Experienced on Installations, Configurations and Managing of Solaris Zones and LDoms.
  • Experienced in Service Management Facility SMF
  • Familiarity with various monitoring tools for monitoring large scale enterprise networks.
  • Performed kernel tuning, performance tuning for different web and java related applications on RHEL and Solaris Servers
  • Coordinated with SAN Team for storage allocation and Disk Dynamic Multi pathing. Worked on various SAN Products like EMC Symmetrix, Clariion.
  • Experience in Performance monitoring, usage and load of the system, changing kernel parameters for better performance, creating new Slices with format and creating huge Slices with Daisy Chains.
  • Experienced in documenting various maintenance activities and upgrades and changes in the network architecture.
  • RDBMS installation and support including Oracle 8i/9i/10g, DB2 UDB 7/8 SQL Server.
  • Experience in providing day-to-day user administration like adding/deleting users and managing user's queries
  • Experience of working in Data centers with 24X7 Production and On-Call Environments.
  • Excellent ability to handle significant workload with experience in managing multiple projects concurrently in a fast pace environment.

Technical Skills:

  • OS: Redhat Linux 4.0 5.0,6, Solaris 8/9/10, VMWare ESX 3.x/4.x/5.x, SUSE 9, 10, 11. Windows- XP, 2003 2008 server, WIN7 .
  • Hardware: HP Proliant DL 360, 380 G3, G4, G57 G6, Sun Ultra Enterprise Servers E3500,E4500,E450,E420R, 250,M4000,M5000,T2000,T5120,T5220, T5220,T5240 Sunfire 15000/6800/4800/3800/ v880/V480/V240/V210/ V440/280R , Cisco UCS, HP C7000
  • Sun workstations Ultra 5, 10, 20,80 Blade 100,150, 2000
  • Server Monitoring Tools: HP Open view, Nagios,HP Sitescope
  • Networking: DNS, DHCP, NFS, FTP, NIS, Samba, SSH, IP-Tables, Apache, TCP/IP
  • Virtualization: VMware infrastructure client, workstation, Converter standalone client,
  • Microsoft virtual PC and Linux virtualization, VSphere, Zones
  • SAN: EMC Clariion, EMC DMX, NetApp filer and HDS AMS Arrays.
  • Volume Management: Redhat LVM, Solaris Volume Manager, Veritas Volume Manager, ZFS
  • Tools: VERITAS Cluster Server 4.1, 5.1, VERITAS Volume Manager 4.0, VERITAS File Systems, Solstice Disk Suite, VERITAS Net-Backup 5.0, and Remedy 6.0, 7.1

Professional Experience:


Linux / VMWare Administrator

  • Installed and configured of hardware and OS Redhat 5/6, SUSE 11/12 on x86 servers and Solaris 10/11 on SPARC HW.
  • Performed VMware ESX upgrades from 4.1 to 5.0 and 5.1 and also performed VMware HW upgrade on VM's.
  • Involved in building New ESX 5.1 servers and added to ESX Clusters and performed VMotion activities during maintenance windows.
  • Involved in creating Resource Pools and Port groups on VMWare ESX environments.
  • Involved in creating VM Template's on VMware and deployed 100 VM's on ESX Clusters using the Templates.
  • Helped in the Architectural Design for the Implementation of Single Sign On SSO in the Linux and Solaris Environment.
  • Involved in SAN migrations from EMC DMX to VMAX and Clariions to VNX using zfs, Veritas and SVM on Solaris 9/10 and Linux LVM on Redhat Linux.
  • Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots.
  • Installed Solaris 10/11 using jumpstart and created Solaris zones on T and M series HW.
  • Configure dynamic and static network settings for IPv4 and filter packets, Review file system management concepts, removable media and configure NFS shares with AutoFS
  • Detecting System Failure, Resource Failure and hardware failure on SUSE Linux platforms
  • Performed OS upgrades Kernel Upgrades to SUSE 11/12 and Redhat 6.5 for critical servers under production
  • Troubleshooting, Working and Maintaining VERITAS Cluster in Linux SUSE Redhat Environment.
  • Worked with HP Integrated Lights Out iLo software in effectively managing the server under cluster environment
  • Supported the Migration Activity from One DC to another DC.
  • Troubleshooting and analysis of hardware and software failures for SUSE Linux servers core dump and log file analysis .


VMware/Linux System Administrator

  • Installed and configured of hardware and OS Solaris 10, SUSE and RHEL 4/5 on x86 and SPARC servers.
  • Build VMware ESX and Linux servers, configured, installed VMware tools, installed Linux and VMware patches and transitioned servers using VMware converter to production support.
  • Experience creating and managing HP Proliant DL G4, G5, G6 G7, C7000 Blade Centers and Cisco UCS HW running ESX 5.0 supporting 250 VM's running Windows and Linux.
  • Involved in managing and adding new Datastores on ESX Clusters and performed raw device mappings to Linux and Windows VM's.
  • Involved in P2V migrations using VMware converter and also involved in Storage and Physical VMotion activities.
  • Manage file systems using Software RAID and recover an array, Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots.
  • Configured Kick start, Jump Start NIM servers to install Red Hat Linux, Solaris and IBM AIX on multiple machines.
  • Involved in virtualization with VMWare ESX vSphere 4.1 and created VM's and performed P2V and P2P migrations.
  • Installed patches to latest patch level, applied patch cluster and installed software packages as needed.
  • Monitoring the hosts and networks using Iostat, VMstat, MPstat and Other Tools
  • Creating user accounts, user administration, local and global groups on Solaris and Red Hat Linux platform.
  • Experience working Solaris Zones/Containers and new features of Solaris 10, zone reconfiguration and file system layout modification of the containers supporting the Sybase database.
  • Disk mirroring and RAID implementation using VERITAS Volume Manager and Solaris Volume Manager.
  • Installed VERITAS Volume Manager and Powerpath on Red hat Linux servers.
  • Security implementation through ACL, RBAC and TCP Wrappers.
  • Installing, configuring, and administering DNS, NFS, NIS, Mail servers, FTP servers RPM servers on Sun Solaris and Red Hat Linux platforms.
  • Installation and maintenance of Syswatch Monitoring tool in Solaris Server, wring core rules to various Solaris servers.
  • Resolving regular tickets on Hawk, Syswatch and ping probe Monitoring tools.
  • Configuring Solaris Zones in Solaris 10. Creating Whole root zone, Sparse zone and implementing branded zones, zone cloning , zone migration .
  • Controlling the System Logging services, and examining system Log Files of all system events.
  • Firmware upgrade on T2000, T5220, T5240, T5120 and T5140 and VTM patch on Solaris Servers.
  • Responsible for troubleshooting and maintenance of VERITAS cluster under Solaris 10.
  • Installation of OAS Oracle Application Server on Solaris 9 and its configuration with oracle database
  • Performed SAN software upgrade on Solaris 8, 9 and 10 servers.
  • Detecting System Failure, Resource Failure and hardware failure on Solaris platforms.
  • Networking communication skills and protocols such as TCP/IP, Telnet, ftp, SSH, rlogin
  • Supporting 24/7 for all web-hosting applications ETL application and on Solaris and SUSE Linux server.

Environment: VMware ESX 4/5, Redhat EL 3/4/5/6, SUSE 9/10/11, Solaris 5.8,9 and 10, Sun Fire V480,V490,V880,V890 Sun Enterprise E3500, E4500, E6500, M4000, M5000, T5220, T5120,T5140,T5240 Sun Ultra Sparc 80, VERITAS Volume Manager 3.x/4.1 Solaris Volume Manager, Oracle 11i.


Unix/Linux Administrator

  • Worked in Mission Critical Production environment that deals with OS level issues through the Enterprise.
  • Regular Admin Tasks include building Linux servers for Production, Development and Test Environments and supported the ones under production.
  • Performed OS upgrades for critical servers under production.
  • Experience in creating file systems on LVM, VxVM
  • Performed various file system changes to accommodate upgrades in applications, services and databases.
  • Maintained OS/APP backups for Linux and Solaris servers
  • Managed critical bundles and patches on the production servers after successfully navigating through the testing phase in the test environments.
  • Worked on the virtual environments through the virtual ware clients like VMIC/ VSphere.
  • Responsible for evaluating Storage Foundation Cluster File System for possible production use.
  • Monitoring the hosts and networks using NAGIOS, Iostat, VMstat, MPstat and Other Tools
  • Manage software on system using YUM, and RPM
  • Worked on the Windows servers, upgrading the OS, resolving issues and patching regularly with Shavlik
  • Worked with HP Integrated Lights Out iLo software in effectively managing the server under cluster environment.
  • Implementing file sharing on the network by configuring NFS/SAMBA on the system to share essential resources.
  • Good knowledge in structuring the documentation for Architectural Design and Build Plan Documents.
  • Managed Disks and File systems using LVM on Linux.
  • Performed day to day health check and maintained the servers by taking the down time from the users.
  • Performed configuration and troubleshooting of services like NFS, NIS, DHCP, FTP, LDAP, Web servers Apache , Samba servers
  • Installation of Cent OS 4.x manually and upgrading through YUM installation.
  • Provided afterhours and weekend support to facilitate the issues in the production environment.


UNIX System Administrator

  • Worked in a huge enterprise environment with 250 Linux servers.
  • Experienced in the installation, support, configuration and maintenance of RHEL and Solaris servers.
  • Installing, upgrading and configuring Solaris 9, 10, Red hat Enterprise Linux 4, 5.1
  • Worked with MySQL database installations and configurations.
  • Created documentation for technical details on hardware and networking.
  • Worked in 24/7 support environment for network and systems support.
  • Utilization and Implementation of VMware at the full implementation range using the complex features of VMware connectivity with SAN, HA and DRS configuration. Worked on V-motion in VMware.
  • Installing and Configuring nodes on a VERITAS Cluster in a SAN environment, adding VCS agents for Oracle, Sybase, troubleshooting fail over issues, resource management.
  • Worked in deploying Linux and Windows virtual machines in VMware. The implementation involves SAN connectivity with VMware.
  • Performed multiple Linux kick start installation both on VMware and physical servers
  • Configured and distributed virtual machines on different hosts and configured v-motion. Performed template installations.
  • Performing p2v migrations in Windows and Linux OS.

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