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Administrator Resume Profile

SUMMARY

  • Over 8 years of experience in implementation, administration and Application-production support in UNIX RedHat Linux and HP-Unix environments.
  • Experience with VMware to deploy Linux OS.
  • Proficient in Installation, Configuration, Support Maintenance of various Red hat Linux Servers located at Remote Locations.
  • Good knowledge of VERITAS products such as Volume Manager VxVM VCS.
  • Server high availability experience in Redhat Cluster and Veritas Cluster.
  • Extensive experience in NFS, NIS, SAMBA, LVM, IPTABLES, Sudoers, Crontab, RPM, YUM, Printing-CUPS, Software RAID, Send Mail configuration and administrations.
  • Capacity planning Performance Analysis, Uptime Response time analysis.
  • Good knowledge on all the system and network monitoring and troubleshooting tools.
  • Installation and upgrade of Software Patches, configuration management. Maintain various level of documentation. Co-ordinate with vendor to resolved OS issue.
  • Experience in Incident Change management process ITIL
  • Excellent communication, team membership and relationship management skills.

IT Skills:

  • Operating Systems
  • RHEL Linux, HP-UX
  • Enterprise Management and Backup tools
  • HPOV, Nagios, and Veritas NetBackup.
  • Hardware
  • DELL PE Series, Stratus, HP Proliant series, HP rx 6600,rx7640, HP DL 980, HP DL 580
  • Ticketing Tool
  • BMC Remedy, IBM SMART, TCIS, Service Now
  • Process
  • ITIL v 3
  • RedHat Certification
  • RHCE, RHCVA
  • Virtualization Technology
  • KVM

Experience

Confidential

Linux System Administration

Roles Responsibilities:

  • Installation and configuration of Redhat Linux Servers with SFC Solar Flare Card for new build environment.
  • Install and configured Linux servers using kickstart and RHEL ISO image methodology.
  • Configuration of CPU pinning using CSET to achieve better application performances.
  • Customization of Linux TCP kernel parameter and ulimit values.
  • Configuration of LUNs assigned by the storage team, and manages volumes using LVM and VXVM in Linux.
  • VCS cluster configuration and administration.
  • Responsible for creating and managing user accounts, security, rights.
  • Configures NFS, FTP, IPTABLES, sudoers and enabling CRON.
  • Troubleshooting and problem resolution of system performance and networking using nmon, sar, iostat, nmap, tcpdump, wireshark, starce etc..
  • Customization of process dumps to analyze the performances
  • Creation and management of Linux Virtual Machines using VMware Virtual Center
  • Configure SSH configuration files and manually set sshd authorized keys file.
  • Patched servers using YUM repositories
  • CUPS Configuration.
  • Resolved open tickets in a timely, professional manner and provides a positive customer experience
  • Co-ordinate with vendors Red Hat for OS related issues

Chef Configuration Management:

  • Experienced on build/manage Linux Server Infrastructure using Chef Automation tool.
  • Install a Chef Server, Workstation, and Client on RHEL
  • Create Chef Cookbooks to Manage Infrastructure on RHEL
  • Use Roles and Environments in Chef to Control Server Configurations.
  • Use Chef's knife command to view and manage Chef Server.

UNIKIX Clerity TPE/BPE Administration:

  • Administrating and Operating the Clerity Unikix TPE/BPE environment to maintain the availability of Application in the LINUX platform
  • Install/Upgrade TPE/BPE software's.
  • Troubleshooting application, communication and system errors as needed to guarantee the application availability in the LINUX platform
  • Working with Customer Support Service teams DELL or directly with the customers to resolve operational or technical issues
  • Responsible for vendor software administration, installation and support. Serena Dimensions, DMExpress, CA Easytrieve,CA XCOM,ESP etc....

Confidential

Linux System Administration

Roles Responsibilities:

  • Administrate maintain1000 Linux Servers.
  • Install and configured Linux servers using kickstart methodology.
  • Ensure that the operating system is fully secure. Hardening Policy .
  • Setup NFS servers clients for file disk sharing.
  • Using LVM for dynamically extending reducing partition size as when needed
  • Deployed a custom syslog reporting solution for system alerts and notifications.
  • Co-ordinate with vendors Red Hat for any hardware and OS related issues.
  • User administration and SUDO configuration.
  • Creating RFC's. Technical change planning and implementation.
  • Develop and implement improvements and processes, motivate the team as well as ensuring SLA's are met.
  • Dealing with all escalations to the team in a professional and timely manner.
  • Call prioritization and time management.

Confidential

System Administration - Linux and HP-UX

UK-DCS is a Multiclient project from UK including customers like SHIRE, DHL, LR, HOF, and MIS. Capgemini provides end to end solution to their business needs, incorporating the combination of best-of-breed technology with in-depth business knowledge market insight. My role is to manage the UNIX Linux Server Administration and performance monitoring.

Responsibilities in this project include:

Incident Management:

  • Administrate maintain several Linux, HP-UX servers.
  • Ensure that the operating system LINUX / HP-UX is fully secure. Hardening Policy .
  • Define and maintain operating system parameterizations kernel parameters .
  • Install operating system patches and upgrades in coordination with the requirements of other software components and client
  • Setup NFS servers clients for file disk sharing for UNIX/LINUX
  • Using LVM for dynamically extending reducing partition size as when needed
  • Responsible for uptime of all the servers/nodes.
  • Co-ordinate with vendors HP- UX/Red Hat for any hardware and OS related issues.
  • Monitoring the systems for performance checks using HPOV as monitoring tool.
  • User administration and sudo configuration

Capacity and Availability Management:

  • Generating Capacity and Availability reports for various servers and providing it to particular contract owner.
  • Ensuring all reports getting generated properly.

Event Management:

  • Configuring and maintaining HPOV on HP-UX and Linux servers.
  • Monitoring several UNIX serves through HPOV monitoring tool for various events.

Change Management:

  • Creating RFC
  • Creating CIP Change Implementation Plan and RIA Risk Impact Analysis
  • Technical change planning and implementation.

Confidential

System Administration - Linux and HP-UX

  • The infrastructure comprises of 1 Primary Data Center's PDC , in Mumbai India , and the corresponding Disaster Recovery DR sites at Chennai,
  • The architecture at each DC comprises of HP-UX servers in a MC Service Guard cluster configuration, along with Linux servers under the RHEL OS. The entire architecture is served by a Hitachi XP1024 SAN array and supported by the Veritas Netbackup Enterprise Backup Solution.
  • Servers are monitored using the HP Open View Operations OVO suite. The DR site at Chennai uses SAN data replication.

Linux HP-UX Responsibilities:

  • RedHat Enterprise Linux/HP-UXHA High Availability implementation/maintenance at NSE Operations involved with design, implementation and support of the solution.
  • Several HP-UX and Linux servers from the rx7460, rx6600, rx4640 and rp3440 series, Blade server, along with 2EVA5k and EVA8k storage arrays, are implemented within Disaster Tolerant architecture, spanning 2 physical sites namely India DC at Mumbai and India DR at Chennai.
  • Maintaining 6 x 2 RHEL 5 Cluster comprising of 12 Red Hat Linux nodes, for India DC and DR.
  • Dual HBA's with 2 GB/s throughput, managed through Secure Path to the SAN for redundancy and load balancing.
  • NTP implemented across the UNIX/Linux enterprise.
  • Root ignite server for HP-UX system image backup
  • Setup NFS servers clients for file disk sharing for UNIX/LINUX.
  • Migrate HP-UX shell scripts to RHEL
  • Using LVM for dynamically extending reducing partition size as when needed
  • Maintaining Data replication between India DC and DR, using the SAN based replication technique
  • Performed server hardening and security lockdown of UNIX/LINUX servers as per the company's security policy and recommendations from security consultant like PWC, Paladion.
  • Deploying HP Open View Operation Agents on all UNIX/LINUX servers for Monitoring critical system, and application availability metrics for proactive notification.
  • Deployed and configured Veritas Netbackup Agents on UNIX/LINUX servers for backups. Also reviewing backup policy, design and create backup schedules for India DC and DR.
  • Participate in internal and external Security audits
  • Co-ordinate DR tests under the guidance of the Project Delivery Head

Confidential

Linux Administrator

Linux Experiences:

  • Monitor Performances Statistics on regular intervals and also on threshold levels.
  • Ensure that the operating system LINUX is fully secure. Hardening Policy
  • Perform routine maintenance on servers hardware/operating system LINUX.
  • Define and maintain operating system parameterizations kernel parameters .
  • DHCP, SAMBA, NFS FTP server configuration.

Confidential

Linux Administrator

Responsibilities:

  • Installing and maintaining Linux servers and desktops.
  • User administration.
  • Configuring and securing cron job scheduler.
  • Configuring and maintaining Samba and NFS sharing.
  • Managing user group, disk quota accounting.

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