OBJECTIVE

• To work in an organization where I can deliver my 8+ years of experience in Unix Systems (Redhat Linux 4/5/6/7, Solaris 9 & 10, HP - UX 11i & AIX) & Storage systems (Netapp, EMC Data Domain and VNX) to meet teh organization’s goals and objectives with virtue and zest.

SUMMARY

• Experience on REDHAT Linux, Centos, Perl and Shell Scripting
• Ability to multi - task, prioritize daily duties and meet strict deadlines
• Experience in patch management, Kernel Upgrade and tuning kernel parameters
• Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like LDAP, DNS, NFS, DHCP, FTP, SSH, SAMBA and SSL
• Has been teh “go-to” person in emergency situations
• Provided support for LAMP (Linux, Apache, MySQL, PHP)
• Experience in Security Hardening of Linux Servers
• Supporting Application Deployments on Weblogic, Jboss, Tomcat
• Configuring Monitoring rules for teh server environment using NAGIOS V3
• User administration, managing Users, Groups and permissions
• Well versed in configuring Volume Groups and Logical Volumes, extended logical volumes for teh system growth needs using Logical Volume Manager (LVM)
• Managing file systems with Logical Volume manager (LVM), SVM, VXVM & ZFS
• Configuring distributed file systems, administering NFS server & NFS clients and editing auto-mount mapping as per system / user requirements
• Experience in Server build using kick start, PXE
• Experience in installation and configuration of Apache Web Server
• Proficient in shell scripting (Ksh/Csh/bash/Sed/Awk)
• Experience in version control tools Sub version/ SVN
• Experience in configuring VMware Virtual switches, port groups and configuring redundancy through NIC Teaming
• Managing VMware Resource pool Allocation.
• Creating and managing Virtual Machines and Templates
• Worked with clones and snapshots of Virtual Machines.
• Acquired proficiency in DB administration (Oracle and MYSQL) by maintaining, pruning, and performing DB tasks.
• Independent problem solver and a good team player with strong interpersonal and communication skills.
• Configuration of zoning in FC Switches
• Configuration of file access protocols CIFS, NFS and management of Qtree, Quotas and NDMP.
• Performance monitoring of filers and configuration of Multipathing in UNIX environments for MPIO, Powerpath.
• SP & TL upgrade on AIX servers
• Expert in Backup Technologies (HP Data Protector, IBM Tivoli Storage Manager)
• Developed various scripts for application log files compression, archival, cleanup operations and automating using Cron
• Ability to self-start with minimal or no guidance
• Involved in Data Centre setup, migration and DR activities
• Proficient on administrative tasks using Puppet

TECHNICAL SKILLS:

Operating Systems: Solaris, Linux HP-UX, AIX and Windows

Storage: NetApp FAS Series, EMC Symmetrix(DMX, VMX, VNX, Clariion) and Brocade Switches

Backup: IBM TSM, HP-Data Protector, CA Arcserve

Databases: MYSQL, Oracle 9i/10g

Languages: Perl, Shell Scripting

Networking: TCP/IP, DNS, NFS, NIS, SSH,DHCP,LAN,APACHE,FTP

Methodologies: ITIL

Virtualization: Vcenter Server 2.0/2.5.4.0 , ESX3.X/4.X/5.X, vSphere4.X/5.X

Monitoring Tools: Nagios, Tivoli

Web servers: Jboss, Apache Tomcat

Server Hardware: Sun Fire 880, T5240,E10K, M4000,M5000HP ProLiant DL 360, 380, 385 series servers & Blade servers, Workstations B, J & C Class, Rx6600, Rx8640, Rx2660, IBM X-series M3,M4 & M5, NetApps Storage,6040&8030

PROFESSIONAL EXPERIENCE:

Confidential, Schaumburg, IL

Sr. System Administrator

Responsibilities:

• Upgraded RHEL 5 and 6 version to 7
• Experience on Preupgrade Assistant tool for upgrading teh RHEL OS
• Played a key role in configuring teh Monitoring for Linux & Windows servers, Network Firewalls, Switches using Nagios
• Configured/maintain LVM’s in teh servers
• Worked on Installation teh Linux package, configuration changes and other Admin task using Puppet tool
• Experience working with servers connected to on SAN & NAS environments under EMC and NetApp
• Providing full support for teh Linux and Apache
• Performing Data center operations with vendors such as new server rack mounts, cable management related to Unix servers and SAN storage related stuff involving SAN Switch configurations
• Installed Nagios plug-ins, NREP on Unix, NsClient++ on Windows and configured alerts for monitoring
• Configured alerts in Nagios for network devices, storage devices using SNMP protocol
• NagiosXI dashboard customization based on teh requirement
• Successfully installed and configured NAGIOS monitoring system to monitor teh production server environment
• Customization of alerts in Nagios as schedule maintenance as well as time period templates based on requirement
• Configuring additional resources for VM’s and performing VM tools upgrade
• Provisioning and Decommissioning VM’s based on teh business requirements
• Worked on installation of ESX Servers, vSphere Client and Vcenter Server
• Participating in Technical calls and Troubleshooting issues on outage for Service restoration
• Installed and Configured teh Yum repository across teh multiple datacenters
• Maintain Apache web server, FTP server and DNS servers
• Experience on Apache configuration and troubleshooting

Environment: Linux 5.x,6.x,7.x, CentOS, AIX, VMware, windows 2008, Perl, Shell Scripting, Nagios, Apache, Puppet

Confidential, Los Angeles, CA.

Sr. System Administrator

Responsibilities:

• Delivering 2nd level technical support to current and new business applications
• Good working experience in troubleshooting teh performance issues HIGH CPU, memory & IO utilization
• Managing and monitoring teh Application Servers and Database servers
• Installation and up-gradation of teh operating system (RHEL, Ubuntu) and other applications
• Configured teh PXE boot Server and Remote installation of teh operating system
• Having experience in NFS configuration, mounting NFS client and troubleshooting
• Automating teh process using Shell scripts
• Good experience in scanning assigned LUNs, create a new file system & extend teh existing FS in SVM, ZFS & VxVM
• Configured teh basic Nagios monitoring to monitor 2500 Hosts
• Having good experience analysis teh hardware issue & make hardware call to replace teh faulty part(s)
• Provide end-to-end support for Backup servers (Data Protector and TSM)
• Good technical competence in Solaris Volume Manger and VERITAS Volume Manager
• Having good experience in VCS, troubleshooting service groups & resource groups
• Having good experience in LDOMs. Adding virtual disks & extend teh file system
• Power Path software installation, configuration and administration on UNIX Servers
• Creation of Storage Group & Assigning Lun’s to Host. And expansion of LUN Size and migration of Lun’s
• Creation of zones, modifying zones and Log into all teh devices in SAN like Switches and Storage Arrays and perform periodic health checks
• Perform storage provisioning as per teh instructions in SOP document
• Good exposure on Create RAID Groups, bind LUNs, and Create Storage Groups using Navisphere Manager

Environment: Linux 5.3/5.5, CentOS, Perl, Shell Scripting, Nagios, kick start, NetApp 7 Mode

Confidential, IL

Sr. System Administrator

Responsibilities:

• Managing file systems with LVM (creating new file system, online resize, removing file systems)
• File System Management and resolving teh threshold or disk space alerts monitored via Nagios server
• Used RPMs to install, update, verify, query and erase packages from Linux Servers
• Weekly & periodically changes implementation and quarterly power down maintenance (Patching, Upgrading, Reboot development servers on request of client)
• Kernel Parameter changes and up gradation
• Automate any given manual task using Perl and Shell Scripting
• Leading a team of 6 members, providing 24/7 support to clients on Linux production servers. Training new staffs, and fix problems escalated by L2 support
• Installation, up gradation, Configuration, Maintenance and Troubleshooting of teh Operating systems and services
• Working experience on HP-UX blade servers with hardware HP Proliant DL360, DL380 series
• Taking backups using UNIX tools. Developing and implementing well defined processes manuals and escalation metrics
• Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS and Autofs File systems
• Troubleshooting system, network and user issues
• User Administration, Managing Users, Groups and permissions
• Configuring and Administering IPtables Firewalls like APF and CSF
• Experience in configuring LAMP and CPANEL on RHEL Server
• Manage multi-sites uptime and downtime coordination with internal customers, server owners, external support vendors, business partners and system owners

Environment: Linux 5.x, CentOS, HP-UX, Nagios, LAMP, Shell

Confidential, Austin, Texas

System Administrator

Responsibilities:

• Managing User account’s (Creating new users, setting up user environment, changing passwords, locking and deleting accounts.
• Creating, increasing and reducing volumes by using VERITAS as per teh requests
• Patch and package Management, server health Monitoring and Alerting
• Installing & Configuring VMware ESX Host & Guest Servers
• Centralized server and virtual machine management
• Taking Snapshots and reverting to teh required state using them
• Migration of live virtual machines using VMotion technology
• Converting teh physical machines to virtual based on teh recommendations
• Mounting and extending FC and ISCSI storage Lun’s to ESX & Hyper-V hosts
• Expertise in co-ordination b/w teams working in different groups (Network team, System admin team, Database team)
• Coordinating with various Hardware Vendors for hardware issues and disk replacements
• Data center coordination and consolidation of servers and also acted as technical liaison for all applications &Data center operations
• Implementing backup polices and monitoring backup jobs
• Managing swap configuration
• Strong hands-on experience in managing and administering FTP, NFS, NIS Servers
• Developed and modified shell scripts for automation process

Environment: RHEL 3.0 & 4.0, HP-UX 10 & 11i and Solaris 8, 9&10, CentOS

Confidential

System Administrator

Responsibilities:

• Administering Network, Installation, and Maintenance and Trouble Shooting UNIX and Windows environment
• Remote Unix servers administration
• Configure system hardware and install system software, such as drivers and service packs
• User Management and File System Management. Applied patches on Linux systems
• Network monitoring with MRTG.
• Server performance monitoring and troubleshooting for server related problems
• Responsible to configure and implementing Internet leased lines
• Maintained File systems and monitoring CPU usage, Disk usage and system resource usage
• Implementing firewall security for teh servers using IPTABLES
• Network designed, installed and maintenance of variably sub netted local area n/w
• Setting and maintaining teh network with inter connectivity between different operating systems
• Maintained File server (SAMBA) for Linux and windows clients

Environment: RHEL, CentOS, Windows, AIX