Summary:

• Talented systems administrator offering 8 Years of IT experience working as Systems Administrator at different large and complex environments carrying from Midrange to High end servers.
• Strong grasp of designing, building and supporting both development production environments and supporting numerous applications.
• Experience working across different financial, Healthcare and Service sectors

Expertise:

• Adept at providing technical assistanceas System Administrator for Red Hat Enterprise Linux, Sun Solaris, IBM AIX and HP-UX servers
• Installed, configured and maintained UNIX/LINUX servers in an enterprise environment Linux, AIX, Solaris, HP-UX with SAN/NAS infrastructure across multiple sites for business critical applications.
• Installed, configured, and upgraded Red Hat Enterprise Linux 4.x, 5.x, 6.x on HP Proliant, Dell PowerEdge Servers andSolaris 9 and 10 on Sun Servers..
• Strong sense of urgency providing troubleshooting support in critical 24X7 production and development environments.
• Experience in Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX, VMware Vcenterand XEN virtualization.
• Installed, configured and maintained Veritas Volume Manager VxVM , Sun volume Manager, Logical Volume Manager.
• Experienced in usingVeritas NetBackup 6.5 with proficiency in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio.
• Expert in Shell, Perl scripting and experienced in using text processing tools like Grep/Sed/Awk.
• Installed and configured network based services such as NIS, NFS, DHCP, DNS, FTP, SFTP, SSH, RSH, Samba Send mail.
• Installed, maintained, upgraded and supported Apache Web Server and JBoss application servers on Red Hat Linux systems.
• Expert inKickstart, NIM, Jumpstart, Ignite, AutoYast Installation Methods.
• Supported different tools for automation like configuration and management software puppet, scheduling software BMC, Maestro and Monitoring softwares like Nagios and Splunk.
• Experience in automating jobs using shell and Perl scripts.
• Extensive experience in writing and troubleshooting scripts in ksh, bash perl languages.
• Good knowledge of RAID groups and setting up NFS, CIFS and iSCSI protocols in SAN/NAS environment on HPUX 11.23/11.31 and Redhat LINUX.
• Setting up NIS/NFS on RedHat servers, setting up JBOSS cluster and oracle 10g cluster, configuring load-balancing on apache, Redhat Linux 4.0/5.0.
• Installation/configuration for Oracle, Sybase, SQL Server, Informix Databases.
• Experienced in working with SAN hardware from vendors includingNetapp, EMC Symmetrix and CLARiiON .
• Experienced in Configuration of LPAR using HMC and installed the OS using NIM server.
• Experienced in configuring Dynamic LPAR IBM Servers.
• Expertise in implementation and designing of Disaster Backup and Recovery Plan.
• Experienced in working with different teams such as Network Engineering., Database team and application teams to resolve the issues and provide Customer Satisfaction.
• Efficiency in installing, configuring and implementing the RAID Technologies using various tools like Veritas Volume Manager and Logical Volume Manager.
• Expert in installing, configuring and maintaining Apache Tomcat, Lplanet, WebSphere Application Servers.
• Used ILO/IMM/LOM/DRAC for remote access of servers on Linux/Solaris respectively.
• Experienced with the installation and configuration on Apache 2.x, 1.3.x, 1.2, JBoss4.0.x Web Servers and, BEA WebLogic 8.x, 9.x servers.
• Setup, Implementation, Configuration of Backup/Restore solutions for Disaster/Business Recovery of clients using OMNIBACK on UNIX and LINUX platform.
• Configured and TroubleshootedTCP/IP network services.

Technical Skills And Languages

Professional Experience

Confidential

Systems Administrator

Responsibilities:

• Installation, configuration and O/S upgrade on Red Hat Enterprise Linux RHEL 5.8/6.1/6.2/6.3, Solaris 9/10, VMware ESX 4.1/5.0, IBM AIX 7.1.
• Hardware for new server builds includes Dell PowerEdge 2850/2970/R710/R900, HP Proliant DL385/585, IBM P520, Sun Fire 280R/V480. Existing hardware includes Fujitsu PRIMEPOWER 250.
• Installed and configured HP ILO2/ILO3, Dell DRAC 6/7 for server remote console access, firmware upgrades and BIOS upgrades.
• Good Working knowledge on Installing and trouble shooting of Weblogic 11g application server and Apache 2.2.3 web server in production environment.
• Kernel and Patch updates for the RHEL5.8 Servers using NovellZLM rug utility and patch updates for Solaris 9/10 using the native Solaris patch bundles. Patched the latest RHEL 6.2/6.3 version O/S using Yum Package Manager.
• Created new virtual machines on VMware ESX 4.1 and ESX 5.0 servers with the help of VMware Vsphere client 5.0. Virtual Machine O/S includes RHEL 5.8/6.1/6.2/6.3, Windows Enterprise Edition 2008 R2 and Solaris 10.
• Configuration and Maintenance of multiple VMware ESX 4.1/5.0 servers using VMware Vcenter Server 4.1/5.0.
• Providing 24x7 On-Call Rotation support for 7 days a week and one time every month. Primary point of contact during the On-call for the entire team environment of more than 550 servers.
• Disk configuration and Management on servers running Solaris 9 O/S using Solstice Disk Suite Solaris Volume Manger .
• Adding/expanding new storage to existing/new systems using LVM, Veritas Volume managementVxVM on Linux 5.8/6.1/6.2/6.3 and SUN 10 servers. Administering disks in VxVM includes bringing new disks under Veritas control and replacing failed disks by using vxdiskadm utility.
• Created disk Partitions and made ext3 default file systems on both physical and virtual machines in RHEL5 environment. Used LVM in RHEL5 extensively to increase the disk space based on unallocated physical extents and also by adding new disks to the volume group.
• Good experience and understanding of Storage Area Network SAN technology including zoning,creating disk pools and virtual disks on various systems, maintaining and configuring various fiber switches and storages.
• Configuration and administration of NFS, NIS, NIS , DNS and sendmail in RHEL 5.8/6.3.
• Installed Oracle 11g client version as oracle user on RHEL servers. Executed the root scripts and changed Kernel Parameters as per the requirements from the database team.
• Setting up the server to send/receive mail using SendMail utility which uses the Simple Mail Transfer Protocol SMTP .
• Administration of the production environment Application/Database backup using Veritas NetBackup 6.5.5 and TSM 6.0 on the client side.
• Installation and troubleshooting of monitoring software Xymon monitoring tool, Nagios and HipLink Paging system for production server's support.
• Created Shell scripts using bash/Perl and using text processing tools like Grep/Sed/Awk to ease administration tasks by automating the tasks.
• Modifying the crontab entries based on application team requirements to automate the tasks that are set to run periodically without any manual intervention.
• Performing team maintenance duties by creating and closing problem tickets after solving them using BMC Remedy PAC 2000. Also Created CR's Change Request to perform changes on production servers.
• Performing general administration tasks like replacing a failed hard drive, crontab changes and network configuration changes in both Solaris 9/10 and RHEL 5.8/6.3 O/S environments.

Environment: RHEL 5.7/5.8/6.1/6.2, Solaris 9/10, VMware ESX 4.1, HP-UX 11.31, Dell Power Edge R710/2950/2970/R900, HP proliant DL385, IBM P520, SunFire 280R/V480, Fujitsu PRIMEPOWER 250, Cisco catalyst 3560 switches, HP ILO2/ILO3, Dell DRAC, Xymon monitoring, Hiplink Paging Services, BMC remedy Change Request, Problem Ticket, HP ESMA Ticketing , VMware ESX 4.1/5.0,VMware Vsphere Client 5.0, VMware Vcenter server 5.0, VXVM 5.1, Solaris Volume Manager, Netbackup 6.5.5, TSM Backup 6.0, Oracle 11g Client, My SQL 5.6, Perl 5.0, BoKS Authentication, Power Broker, Symantec DLP, Symantec Arcsight, PKI

Confidential

System's Analyst

Responsibilities:

• Installation and configuration of RHEL 5.8/6.3, OEL 5.5/5.7 O/S on HP Proliant DL 385/585 servers.
• Installation of VMware ESXi 4.1 on IBM Blade Center H Chasis and HP Blade System C7000 Enclosure.
• Remote management of IBM Blade Center H Chasis Blade Center LS42 and HP Blade System C7000 Enclosure HP BL460c G7 using IBM blade center Advance Management Module and HP Blade System Onboard Administrator.
• Used VMware vCenter 4.1 and installed RHEL 5.8/6.3 Virtual Machines on ESXi4.1 servers.
• Regular work on VMware vCenter 4.1 involves VM deployments using Cloning and Templates, DRS and Vmotion setup for the VMware ESXi 4.1 servers, adding ESXi hosts to the cluster, patching ESXi hosts in maintenance mode and VMware tools upgrade
• Disk administration on RHEL 5.8/6.3 servers using LVM.
• KVM console setup on HP Proliant DL 385/585 physical servers for remote access.
• Installed Redhat Network Satellite client version on RHEL servers and pushed the recommended patches to the client servers from satellite wed UI.
• Supported RedhatJboss5.1 and WebSphere Application Servers and Apache Web Server running in RHEL 5.8/6.3 environment.
• Supported physical servers running Oracle 10g/11g Database's which are in RAC configured and running on OEL 5.5/5.7 O/S.
• Good Working knowledge on Creating Shell scripts using bash/Perl and using text processing tools like Grep/Sed/Awk to ease administration tasks by automating the tasks.
• Backup administration of both production non-production environments using EMC Avamar 6.1 disk based backup utility. Configured replication between two Avamar 6.1 G4 servers.
• Extensive experience with handling the capacity related issues on Avamar G4 6.1.
• Migrated mission critical Database servers from EMC networker to Avamar G4 6.1.
• Good working knowledge with EMC proprietary Data Domain storage. Configured Oracle 11g RMAN hotbackup's to directly go to Data Domain using the AvamarRMAN plugin.
• Participated in SAN Switch Migration from Mcdata to Brocade VDX 8770. Work includes running the trunk cables, setting up the patch panels, Installing HBA's and setting up Linux Device Mapper multipathing on all physical servers.
• Actively involved in SAN storage migration from EMC DMX to EMC VMAX.

Environment: RHEL 5.8/6.3, Solaris 9/10, VMware ESXi 4.1, Vcenter 4.1, IBM Blade Center H Chasis, HP Blade System C7000 Enclosure, HP proliant DL380, DL385, DL585, Dell Poweredge R710, SunFire 280R/V480, EMC Symmetrix DMX/VMAX, Mc Data Switches, Brocade switches, HP ILO2/ILO3, HP KVM Console Viewer, Dell DRAC6, CA Service Desk Manager, VMware Vsphere Client 4.1, VXVM 5.1, Solaris Volume Manager, EMC Avamar G3/G4 6.1, EMC Data Domain, Oracle Database 11g , Oracle RAC 11g, Jboss AS 5.0, Websphere AS 6.1, Apache 2.2.19, Perl 5.0

Confidential

Linux/Unix system administrator

Responsibilities:

• Installation, configuration and OS upgrades on Red Hat Enterprise Linux 5, Solaris 9/10, AIX 5.3/6.1, Oracle Enterprise Linux 5.5 and Oracle Virtual Machine 2.2.1.
• Configuring KickstartServers and booting the images using PXE in Redhat Enterprise Linux.
• Installed OS by using Kickstart, and NIM methods
• Installation of patches and other software packages on OEL 5.5 Servers.
• Installation and Overlay of Operating System remotely using Oracle Virtual Machine 2.2.1 Version OS on HP Proliant DL785-G6 G7 physical servers. Performing post installation duties on physical machines and install firmware upgrades on the physical servers remotely using HP ILO 2 3.
• Experience in Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX, VMware Vcenterand XEN virtualization.
• Created VM's on the HP Proliant DL785-G6 usingXenparavirtualization. Created VM's by cloning method and performed post installation activities on the VM's.
• Used LVM and Veritas Volume Manager for managing disk space on RHEL servers.
• Responsible for the VM configuration file changes and creation of block devices on Netapp which are mounted on physical server by NFS file system. Monitored the memory and VCPU's allocation to each virtual machine as per the requirements of Oracle DBA team and Application team.
• Configuration of network-interfaces on both physical machines and virtual machines and verification of network service with fail-over concept.
• Experienced in importing the both physical and virtual machines into Oracle Virtual Machine Manager. Live Migrated VM's from one physical to another physical server using OVM Manager.
• Created RAID 0 1 and RAID 1 Storage Systems on physicals using Oracle Virtual Machine 2.2.1 Operating System.
• Configured High Availability of the Cluster using Veritas Cluster Server 5.0/5.1 on RHEL servers.
• Configure HACMP for a clustering environment on AIX servers and administered the virtualization environments consisting VIO servers.
• Created LPAR's on IBM Power series servers using VIOS.
• Managed VIOS using HMC/IVM for both blade and enterprise IBM servers.
• Use ILO/IVM/HMC for remote access of servers on Linux/AIX respectively.
• Implemented and configured Backup policies and Storage Units using VeritasNetbackup 6.5.5. Monitored system resources, logs, disk usage, scheduling backups and restore activities on netbackup from both CLI and GUI. Responsible for starting and stopping netbackup service whenever there is a scheduled maintenance window. Performed Tape Media loading operations on spectralogic T120.
• Worked with SAN administrator in assigning Netapp storage to a new Oracle instance request.
• Configuration and maintenance of DNS, NIS , LDAP on Sun Solaris 10 servers.
• Registered both physical and virtual machines with RHN to get the latest patches.
• Created partitioning for Hard Disk's and made ext2/ext3/ocfs2/nfs file systems on both physical and virtual machines.
• Created general administrative scripts using bash/Perl .
• Monitored servers, switches, ports etc with Nagios monitoring tool. Made changes to the configuration files on client servers and host server.
• Worked closely with Oracle DBA team and Weblogic Application team to ensure optimal performance of databases, and maintain development applications and databases.
• Created VSFTP accounts on Linux servers for application team based on the instances.
• Tuning the kernel parameters based on the application/database requirement.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Performed team maintenance duties by creating and closing tickets in HP OVSC .
• Administration of Mailman application by creating/deleting a mail-list. Monitored user access by adding/deleting their accounts and changing the passwords for a specific mail-list.
• Maintained Domain Name Server DNS by adding and deleting the host name and IP address as per the user request.
• Installing and configuring Linux services to a network attached printer.
• Created Process Change Control Tracking tickets to get approval in Change Management from the infrastructure director and all teams to implement the Change Request and notifying the break fix issues in the environment to everyone.
• Worked with network team to assign the IP address for new physicals and virtual servers.
• Performed general administration tasks like adding users, FTP accounts creation, file ownership changes, symbolic links creation and labeling the disks.

Environment: Red Hat Enterprise Linux 5, IBM AIX 5.3/6.1, HP Proliant DL785-G6 G7, DELL Poweredge 2850,2950 Servers, IBM Power 755/770, OVM 2.2.1, OEL 5.5, Sun Fire V280,V480R, Oracle Virtual Machine Manager, HP Open View Service Center OVSC , Mailman, Weblogic 8.1, Oracle 11i, R12, VeritasNetbackup 6.5.5, Nagios 3.2.3, Cacti, ILO 2 3, IVM, HMC, Windows 2003/2008 Server, LAN, SAN, NAS, NFS, DNS, Tomcat, Apache Server, Shell Scripting.

Confidential

Linux System Administrator

Responsibilities:

• Installation, Upgradation and configuration of RedHat Linux and Windows 2000 servers.
• Installed and Configured WebLogic 6.0/7.1 Application Server.
• Deployed latest patches for, Linux and Application servers, performed RedHat Linux Kernel Tuning.
• Upgraded BEA WebLogic 7.0/6.1 server with latest service pack patches to 8.1.
• Implementation of Samba to help printing and file sharing in the mixed Environment
• Installing and setting up Oracle8i on Linux for the development team
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories files.
• Developed Korn and Bash shell-scripts to automate routine activities
• Migrated database applications from Windows 2000 Server to Linux server
• Configuring Windows Machines in Work Group Environment
• Create system images with Norton ghost.
• Performance Monitoring System tuning.
• Managed Virtual Memory and swap space on RedHat Linux Servers.
• Configuration of DNS, APACHE, MAIL, DHCP FTP Servers in RedHat Linux 3.x/4.x.
• Written Shell scripts to run Batch Jobs using cron and at.
• Implementing Raid levels and changing Boot PROM values according to the requirement.
• Configuring modems printers.
• Documenting the configurations, changes made on any part of System and Network.
• Involved in Backup of data on DAT tape drive, security, performance and availability of system and network.
• 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.

Environment: Red Hat 3.x, 4.x, 5.x,Windows 2000 AIX 5.1, 5.2, VeritasNetbackup 4.5, WebLogic 7.0/6.1 0.x, DNS, APACHE, MAIL, DHCP FTP, Oracle 9i/10g, VMware 2.x, Shell Scripting.

Confidential

Linux and Network Administrator

Responsibilities:

• Installation and configuration of RedHat Linux and Windows NT servers.
• Involved in user account Administration.
• Installed and configured Patches and Packages.
• User account management and support.
• Performance Monitoring System tuning.
• Involved in managing local disk devices.
• Responsible for configuring real time backup of web servers.
• Log file was managed for troubleshooting and resolving errors.
• Responsible for reviewing all open tickets, resolve and close any existing tickets.
• Documented solutions for any issues that have not been discovered previously
• Trouble shooting the system and end user issues.
• Involved in documenting of Linux and Windows environment and configuration details.
• Documented and maintained the inventory using asset management techniques.

Environment: Redhat Linux 3.x/4.x, Windows 2000, Sar, Iostat, VMstat, MPstat, tar, and cpio.