PROFESSIONAL SUMMARY

• Maintenance of ESXi hardwares and upgrading them using vmware update manager.
• Handling Vmotion, storage Vmotion and cold migration.
• Coordinating with the storage team, creating datastores using NAS/SAN from ESX level and presenting them to the storage for Vm guests.
• Creating virtual machines and managing UNIX platform.
• Configurtion of VMotion, Virtual switch and VLAN in virtual centers.
• Creating VMware cluster and enabling HA/DRS features to enable fully automatic failover and also setting affinity rules for servers as per requirement.
• Installing/configuring ESXi servers and adding them to the cluster for Fault tolerance FT and managing them through Vsphere client.
• Administered Using LDAP for the user/group, functional-id management.
• Experience on managing different storages types SAN EMC, Hitachi and NAS Netapps storages from the OS level.
• Managing Vmware infrastructure environment with ESXi servers and virtual machines.
• Actively participated in migration effects from RHEL 5 to RHEL 6.x both physical and virtual environment VMware AIX P5 to P7 migration
• Performed kick start installation TPM installation of RHEL 5.x /6.x/ AIX 5.x/6.x
• Having experience in virtualization and supported various virtualized server environment: VMware, LDOM, zones, Lpars.
• Responsible for handling 100 servers as Primary SA in heterogeneous environment.
• 14 years of IT experience including 8 years of Strong experience in administration of Unix/Linux Red Hat, AIX, VMware and Solaris .
• Performed kernel patching/upgrades, backups on multiple environments of /Solaris/ Linux AIX.
• HP servers' firmware upgrades.
• Worked with NIC redundancy solutions for different OS: IPMP, bonding, ether channel.
• Performed Veritas volume manager and cluster upgrades in Linux environments.
• Capacity management thru BMC perceiver for physical servers and Vcenter for Virtual machines.
• Worked on EMC HDS SAN tech refresh migration on both host based and array based.
• Created disk groups, volumes, volume groups and RAIDs using VERITAS Volume Manager, VERITAS DMP multipathing, EMC powerpath.
• Create/remove/resize physical vol, vol group, logical volume, file system using RHEL / AIX LVM.
• Replaced failed SAN devices including rootdisk/rootmir which in under VERITAS volume manager and file system recovery when corrupted.
• Experience on SAN stack upgrades on AIX, Linux.
• Experience on building 2 node 3 node active/active, active/passive using Veritas cluster for oracle databases.
• Experience in configuring Oracle rack Active/Active ASM and Active/passive GRID environments.
• Maintaining network and data security and, Setting up password less SSH and SCP features between SUN systems and other UNIX hosts including mainframes.
• Managed shared NFS servers. Starting and stopping the NFS services, mount/unmount NFS and managing NFS client on remote machine, sharing remote file folder.
• Installed patches and Packages as needed, installed and configured new hard drives and memory.
• Installed and configured Apache/ Web Sphere with the help of vendors and support teams.
• Developed shell scripts to monitor system resources and system maintenance and Performed administrative tasks such as System start-up/shutdown, and Backup strategy and scheduled cron jobs for job automation.
• Experience in Package Management using RedHat RPM/YUM.
• Disaster Recovery Testing by doing the SRDF/BCV split in between prod and DR servers, and bringing up the application environment on the DR servers to test the setup in cluster and standalone environments.
• Troubleshooting the boot issues using Linux Rescue mode.
• Having knowledge in IPTables configuration.
• Having knowledge in DNS setup / openLDAP configuration.
• Having basic knowledge in scripting tools like Perl/Python.
• Have basic knowledge in Puppet/ Splunk config.
• Successfully migrated of RHEL cluster to VCS cluster on Linux servers.
• Having basic knowledge in SELinux and its configurations.
• Having basic knowledge on Mail server configuration on Linux Servers.
• Excellent interpersonal skills, independent problem solving skills, the ability to work effectively in critical situations and hard working.

TECHNICAL SKILLS

• Operating Systems: ESXi, RedHat Enterprise Linux 5/6, IBM AIX 5.1/5.2/5.3/6.1, Sun Solaris 8/10
• Hardware: HP DL380 G6/G7, HP DL580 G6/G7 , IBM P595, P770, Sun 4800/6800, T2000/5200, M8000/9000, Sun Enterprise 4500/450/250/1280/480/280/2900/490/420/220.
• Ticketing System: Infoman / Service Now / ResolveIT, IBM TPM for Server Build automation,
• ConfigDB, Aperture for Workflow management and reporting, BMC Performance Perceiver.
• Tools: Tivoli, HP, Sysmon, Inbuilt scripts Performance monitoring , Tivoli provisioning manager, BMC performance perceiver, Virtual centers, Aperture system, Service now, Bravura Symantec netbackup
• Software: Veritas Volume Manager 5.1/6.0, Veritas Cluster Server 5.1/6.0

PROFESSIONAL EXPERIENCE

Confidential

Sr. System administrator

• Create/modify/delete/extend/reduce physical vol, vol group, logical volume, file system using RHEL / AIX LVM.
• Redhat 5.9/6.1 system builds using the TPM, installation/upgrade of software using the yum/rpm.
• Performed kernel patching/upgrades, backups on multiple environments of ESXi/Solaris and Linux
• Disaster Recovery Testing by doing the SRDF/BCV split in between prod and DR servers, and bringing up the application environment on the DR servers to test the setup in cluster and standalone environments.
• Working as a Primary SA for 100 servers on ESXi 4/5, Solaris8/10, RHEL 5/6, AIX 5.3 /6.1
• Installing/configuring ESXi servers and adding them to the cluster for Fault tolerance FT and managing them through Vsphere client.
• Creating VMware cluster and enabling HA/DRS features to enable fully automatic failover.
• Configurtion of VMotion, Virtual switch and VLAN in virtual centers.
• Creating virtual machines and managing Unix platform.
• Installing/upgrading VM tools in the virtual machines.
• Coordinating with the storage team, creating datastores using NAS/SAN from ESX level and presenting them to the storage for Vm guests.
• Handling Vmotion, storage Vmotion and cold migration.
• Maintenance of ESXi hardwares and upgrading them using vmware update manager.
• Basic knowledge on HACMP management.
• OS installation process using CD/DVD or NIM server.
• Migrating AIX lpar from p5 to p7 hardware. Lpar creation from HMC.
• Administration of Solaris10 Globalzones and their localzones.
• Coordinated with different teams to migrate servers across Data centers.
• Done migration of RHEL cluster to VCS cluster on Linux servers.
• Building/configuring/Managing VCS cluster environments.
• Upgrade SAN stack packages EMC Power Path packages on Linux/Aix machines.
• Coordinated SAN migrations SAN Tech refresh on RHEL/AIX environments where the storage will be migrated from one frame to another.
• Using LDAP / NIS for the user/group, functional-id management.
• Coordinating with NAS team to mount NAS file system on Linux/Aix Servers.
• Creating Logical volumes, spanning over multiple disks using Veritas Volume Manager.
• Network configuration, troubleshooting using the ethtool, system-config-network and sysconfig files.
• Applying patches, controlling services, troubleshooting the boot issues using Linux rescue mode.
• Working with SAN, in EMC/CLARiiON disks, their installation/configuration of power path.
• Created disk groups, initialized physical disks, created sub disks, plexes, volumes to create a VERITAS File System VxFS .
• Developing shell scripts for admin tasks like customizing user environment, performance monitoring and Responsible for cron job management.
• Building VERITAS cluster nodes depending on the project requirement with the acceptable standard in the IT industry.
• Installed the packages using Tivoli Provisioning manager TPM tool.
• Maintaining network and data security and, Setting up password less SSH and SCP features between SUN systems and other UNIX/Windows hosts.
• Experience in bonding in Linux and ether channel in AIX.
• Firmware updates for OS/ILO/Frames as and when required.
• Configured Oracle rack Active/Active ASM and Active/passive GRID environments.
• Administrative tasks periodically like cleaning of system log files, var files, removing temp files, checking file system and scheduling job automation.
• Providing support for users for installing software application packages based on their specific requirement.
• Configuring/troubleshooting analysis of hardware and software failures for various UNIX servers core dump and log file analysis .
• Escalating the call if needed to Vendor Support Solutions for getting the root cause and resolution for the problems.

Confidential

System Administrator / Team Lead

• DNS Configurations, Ethernet speed checks/Duplex Settings, ports, security ssh setup on RH Linux
• Installation/Upgrade of packages and check package dependencies on Linux Servers using RPM
• System Administration experience encompassing Solaris and Linux platforms relating to mounting and managing LUN's and HBA configuration. Add luns under veritas volume manager and create the VG's, volumes, database file systems, mount points and updating the vfstab files
• Exporting and Importing Disk Groups from one server to other.
• Install, Upgrade and Licensing Veritas Volume manager
• Implemented the Veritas cluster setup and failover test from active to passive node and taking the active node for maintenance.
• Building and configuring Linux servers based on client requirement.
• Managing cluster environments VCS , Redhat Cluster
• Server performance analysis and tuning.
• Handling L1/L2 tasks and managing prod issue in US off hours
• Handling DLPAR operations on AIX LPAR.
• Worked on Security model conversion on 500 servers where all the existing sudo/su access were converted to PowerBroker.
• Add node to Veritas Cluster server, Installing and Upgrading the VCS to 6.0
• Manually Installing, Configuring VCS, GAB, LLT Membership Heartbeats.
• Applying critical Kernel Patches on RHEL/AIX Solaris environments.
• Delivering the 24X7 OS support and hardware support to more than 1300 mission critical servers running database and/or applications on RHEL, AIX Sun Solaris.
• Managing storage using Redhat LVM in creating Physical Vol, Volume groups, Logical Vol, Filesytems.
• Primary responsibilities are to manage all environments in US off hours and end to end Dev/SIT/UAT server's support.
• Worked as team lead and managed 16 member team in India which works 24x7 model.
• Performing Backup and Restore Operations for all Applications Databases.
• Recruiting resources to offshore team and guiding/grooming them to bring them to the speed.

Confidential

System Administrator

• Provide accurate and timely technical support to customers through advanced troubleshooting skills.
• Administrating Solaris/Linux/AIX/HP-UX Servers.
• Analyzing the client servers and providing them suggestions to improve the performance and stability
• Provide accurate and timely solutions as per SLA defined.
• User account management, helping them in installing application packages and configuring them with respective change tickets.
• Monitoring the servers for space/paging/Memory/CPU issues and notify appropriate team to action and keeping them under control to avoid outages.
• Part of change team working on planning/scheduling/implementing changes on production servers.
• Roles include updating recommended patches on Solaris/Linux/AIX environments, OS/Volume manager updrages based on client requirements.
• Filesystem/Mount point creations, Growing and troubleshooting the Metadevice filesystems.
• Day to day tasks include user management, group management, backup monitoring, monitoring of the disk space, monitoring of system logs and so on in LDAP - UNIX environment.

Confidential

Information security administrator

• Responsible for User Administration activities carried out in the servers. Responsible for Enabling and revoking Privileges from the users.
• Interacting with Client to solve their queries and problems related to SMS ID/Functional ID.
• Providing technical support to the concerned users to resolve encountered Problems during a change in a timely manner as per SLA.
• Responsible to take required actions in the system based on HR Exit Checklist
• Coordinating with Business users for implementing the new process and Scheduling the same within My team
• Ensuring that only Valid User id's exist in the system by initiating Entitlement review process on Semiannually.
• Reviewing the EERS report and follow-up with EERS team and respective application manager in case of any discrepancy.
• Make sure that all activities are completed within SLA and generating the SLA time report on monthly basis.
• Preparing MIS productivity matrix on a monthly basis.

Confidential

Data Center Administrator

• Executing the daily batch jobs using PERT software.
• Ensuring that all required reports are printed after the completion of the daily batch jobs.
• Taking backups for all machines on the production cluster and ensuring the timely completion of the same.
• Monitor NETMON Network monitor Software for all the machines on the production cluster
• Handling Adhocs as per user's request.
• Giving root repair to the required persons with respective Project Manager's approval during Non office hours.
• Generating Credit card Banking transaction statements to the customers on monthly basis and ensure that all statements are printed.

Control Coordinator

• Analyzing the log activities carried out by SA/DBA and escalate to the management in case of deviation.
• Verify the Backups taken for all the systems and make sure that it is completed successfully
• Followup with respective support team to reschedule the backup in case of failure.
• ID creation, Password enabling, Program enabling to the users based on the request at SMS security level.
• Evidence Proper ticket details collected for the activities carried out by SA by verifying the log and escalates in case of deviation