SUMMARY

• IT Professional with 9.4 years of experience in Unix System Administration (Linux, VMware, Solaris, VERITAS Volume manager & VERITAS clusters, Redhat Cluster, PACEMAKER )
• Strive to always promote high quality, results - driven, prompt, and professional customer service and support
• Developed from being a reliable technical expert with skills in UNIX/related technologies to an independent Lead who can plan, standardise, and execute good strategies in the UNIX environment
• Install Configure &Deploy on All Red hat operating systems
• Worked on Served End to End Life cycle like Server Builds, Provisioning, Break fix, Deployments &Hardening and Production
• Worked as an on-site Coordinator for Major Activities like Storage Migrations, Data Centre Maintenance/Migration and VMware VC set up ESX servers
• Remote Installation physical server via DELL -DRACK, HP-ILO and virtual servers via VMware ESX 3.5,4.0 (RAID, LVM)
• Patching, O/S Upgrades, Clustering, Migrations, Major Hardware Activities
• Worked on Nas Q tree, creation of Qtree, Expansion, Kernel Upgrades, O/S upgrades

TECHNICAL SKILLS

Operating System: Solaris, Linux, Vmware

Servers: Sun, IBM Power servers, Dell, HP and Exadata

Networking: TCP/IP, LAN/WLAN,VPN,NFS,NIS and FTP

Configuration: Jumpstart, kick start

Database: Oracle, Sybase, MY SQL and DB2

Software/Tools: Veritas Storage Foundation, HMC, Big Brother, Fog light, BMC Remedy and Patrol, IBM Tivoli and VAS

PROFESSIONAL EXPERIENCE

Confidential

Break Fix support

Responsibilities:

• Managing the Confidential Bank Infrastructure 24/7 all critical Incidents for smoother operations
• Supporting more than 25,000 servers across EMEA,ASIA, AMRS regions
• Upgrading of RHEL 5 to RHEL 6, O/S Upgrades, Re staging, Expansion of File systems.
• Patch Upgrades, Installations, Configurations, Storage Migrations.
• Creation of Nas Q tree, Expansion of Qtree tasks
• Administration of Veritas Volume Manager and Veritas Cluster issues
• Adding / removing new LUNs and creating the new file systems or increasing the existing file systems using these Luns in Solaris and Linux
• Patching of 1000’s of servers in Bulk via Self Service Patching tool
• Analyzing the root cause for servers crash, Performance Monitoring &Tuning of servers
• Following up with MVS Vendor for Hardware Replacements
• Upgrading the Firmwares to the Latest Versions, Arranging Downtime with Server Owners
• Attending weekly call with Lob, Business stake Holders for smoother Operations
• Decomission of servers according to Confidential Standards
• Installation of ASA agents ensuring agent running status 24/7
• Excellent ability to handle significant workload with experience in managing multiple projects

Confidential

Responsibilities:

• Managing the Confidential Infrastructure for High Availability for there Business continuity
• Trouble shooting the CRM, STONITH, PACEMAKER Cluster issues in Environment.
• Supporting more than 10000 Confidential stores for Linux support across the world.
• Creation of Nas Q tree, Expansion of Qtree tasks
• RHEL 6, OS upgrades, Patching, File system Expansions,
• Handling the Xen Hypervisor, DRBD Storage issues
• Maintaining the Confidential Smart system and Pharmacy Business on Linux systems in terms f Load issues, servers not accessible, File system issues, Storage and Informix DB
• Taking Escalations from L2 team and fixing them
• Installation of Stonith and RDX set up for backups
• Configuring Xen Resources, clearing failed counts by using CRM
• Patch Updates, Sles Upgrades, Installations of Stonith
• Fixing the Nagios Alerts in Confidential Infrastructure, Redefining Nagios as per need.
• House Keeping of Files systems, Extend of File systems as per the request

Confidential

UNIX System Administrator

Responsibilities:

• Installing, Managing & troubleshooting all the issues on 50,000+ critical Trading production, development and QA servers.
• Hands-on experience in handling all kinds of hardware issues on Sun, HP, IBM and Dell.
• Interacting directly with Clients for getting work window for maintenance works and clarifying their doubts if they raise any as part of seeking window.
• Expertise on installation of various applications, packages and patches on Linux servers
• Verify the Load Balance of My Sql servers using Ha proxy
• Trouble Shooting of NFS,VAS, &LDAP User Authentications
• Replacement of H/W (Motherboard, Memory, Media-Drives, NIC Cards, PSUs, Mellon ax cards, Fusion cards and HBA..etc) by coordinating with onsite team/vendor.
• Working with various software and hardware vendors to fix various issues and regularly following up with them for RCA and updating the same to clients.
• Pushing the configurations and setting up the huge jobs via Blade Logic
• Trouble shooting of various issues reported by Application/DBA teams which comes through either Maximo tool or emails.
• Troubleshooting problems pertaining to Performance Tuning, Network Administration, and System Bugs
• Installing & upgrading of various packages of Linux, Solaris, VxVM and Netbackup, Legato, DNT and Autosys packages.
• Performing various Firmware upgrades such as UEFI,IMM,OBP,LOM and HBAs
• Administration of Veritas Volume Manager and Veritas Cluster issues.
• Adding / removing new LUNs and creating the new file systems or increasing the existing file systems using these luns in Solaris and Linux.
• Root cause analysis after Panic/Dump/Crash related to Linux and Solaris by co-coordinating with Vendors for permanent resolution
• Creating password less SSH(familiar with Open SSH and Commercial SSH) for application teams and fixing if any issues
• Closely coordinated with SAN team for storage, fabric issues. Upgrading Emulex cards, firmware for HBA to the current revision levels.
• Actively participating in a high uptime server reboots project.
• Currently working on a automation project which keeps the server In Maintenance mode before it goes for reboot(working with Mips team)
• De-Commissioning servers according to Bank standards
• Attending the weekly call’s with LOBs and I’m one of representative from L2 team and cascading the information to colleagues when required and keep getting their issues and getting clarification from onsite managers
• Identifies and implements opportunities to reduce problems and optimize support.
• Documentation of all the setup procedures and System related Policies (SOP’s).
• Excellent ability to handle significant workload with experience in managing multiple projects concurrently in a demand environment.

Confidential

UNIX System Administrator

Responsibilities:

• Deploying Rhel 5 & 6 ServerS.
• Disk Managing through Raid & LVM.
• Break fix &Build the Server for AT&T (Singapore)Client.
• Managing &supporting the Production servers through Remote
• Installation of tools like RSA soft token, Veritas, Netbackup client other ATT project related tools
• Remote Installation of RHEL Linux Server on VMWARE ESX 3.5, Dell Power EDGE, HP,
• Remote Installation physical server via DELL -DRACK, HP-ILO and virtual servers via VMware ESX 3.5,4.0 (RAID, LVM)
• Physical volumes and logical volumes & volume groups extending file systems on LVM mount umount of file systems.
• Creating a Vxfs file system, Configuration of Linux servers by installing latest patch clusters and different tools as per the standards of AT&T and client
• Managing the clusters in VCS
• Provide support to the database or application users before the Server goes live
• Expertise on installation of various applications, packages and patches on Linux servers.
• Configuration on various parameter for the server as required by client eg
• Nic- Bonding, installation of SFTP,NTP, TCP wrappers
• Fixing the NFS and AutoFs issues
• Users, files and permissions, DNS, SSH, RSA etc.,
• Perform software installation, upgrades/patches, troubleshooting, and maintenance on UNIX servers using Blade logic
• Adding all servers in Blade logic and Maintaining Blade logic which runs on BMC software
• System monitoring and health check (like CPU, memory, swap utilizations)
• Actively participated in Storage Migrations
• Configuring the swap space and increasing the whenever required.
• Changing the kernel parameters in various unix operating systems.

Confidential

System Administrator

Responsibilities:

• Providing Application support for various projects.
• Monitoring Application & Linux SAMBA, FTP, NFS, APACHE Services and predicate in quick recovery actions
• Supporting there hosting and data center operations 24/7
• Monitoring Servers using Advanced Configuration Manager & Performance and Capacity Planning Graphs.
• Troubleshooting Severs using VPN Connectivity
• As a System administrator, Day to day administration on Redhat Linux which includes installation, upgrades and installing packages & patches, controlling the System Logging services, and examining system Log Files of all system events.
• NIC,DISK failures, DIMM replacements by coordinating with IDC team
• Creation, modification and deletion of the user accounts and assigning permissions to them, Disk quota, support to the users.
• Configuring new disks, creating file systems and mounting, file system maintenance and repair, process management, setting up crontab, at, and batch jobs, password management, and related UNIX administration work.
• Configuration of network services like SFTP, NFS, SAMBA, DHCP, SSH & DNS, etc.,
• Packages and Patches Management
• Delegating calls to team engineers and taking feedback of the call status while troubleshooting issues like Router installations, Servers (Rhel5 & Win2k & 03), like Raid, LVM Installation & failure, SCSI hard disk failure and Power failure etc.
• Moving the volumes between the Disk Groups.
• Creation and removal of Volume and mirrors
• Extensive support towards Linux desktop troubleshooting.
• Handled Configuration & Troubleshooting of LaserJet & network printer.
• Successfully resolved IT related issues, maintained network connectivity, and trouble shooting desktops & server hardware.
• Deftly handling the task of User administration including addition, changing and deletion of User Accounts and addition, changing and deletion of groups and managing of user passwords.
• Responsible for User-level security and classifying ways of controlling root access on the system
• Maintaining the users with effective permission as well as Special permission
• Responsible for monitoring LAN / WAN architecture related to the customer site using WINDOWS 98/2K/XP and RHEL5, Windows 2K server based Network and maintaining Server, Desktop systems & Norton Anti Virus Server.