SUMMARY

• Over Eight years of extensive experience in AIX 5.x and AIX 6.x on IBM pSeries, Solaris (10/9/8), Linux (RHEL 3/4/5/6), Oracle Enterprise Linux (5,6) and SuSE/10/11vSystem Administration.
• Built IBMp Series servers and created of VIO servers, Client LPARS, Dynamic LPARS and installed AIX 5.x/6.x Operating System.
• File system management on RedHat Linux and Solaris servers using LVM/SVM/ZFS/GFS utilities.
• Good Experience in data migration at Host level using LVM, Veritas Volume Manager and Solaris LVM.
• Experience in Configuring, Administering & maintaining Veritas Volume Manager (VXVM) & Veritas Cluster Server.
• Experience with managing Build sheets and Layouts of frames and drawers for create of VIO and Client LPARs.
• Experience with functions of HMC installation, configuration, backup critical console data and maintenance experience.
• Developed migration strategies including P2P, P2V, and V2V for large data center migrations.
• Experience in Installation, Configuration, Implementation, Crash Recovery, Maintenance, Security Setup & troubleshooting.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Professional in Installing, building & configuring Server using Jumpstart, NIM, Flash archive, Ignite and Kickstart techniques.
• Worked on System Imager for cloning Redhat Linux Server.
• Extensive experience in configuring and administrating NFS,NIS, NIS+, DNS, DHCP, SMTP Mail, Samba Server&Printer configuration.
• Experience in Installation & Configuration of RAID Volume Management using VERITAS Volume Manager (VxVM) and Solaris Volume Manager (Solictise Disk Suite).
• Extensive experience configuring Zettabyte file system (ZFS) bycreating pools, snapshots and clones.
• Worked on GFS (Global File System) on Linux and ZFS (Zettabyte file system) on Solaris.
• Expertise in User & Security administration, backup & recovery and maintaining Unix Account management.
• Experience in configuring IPMP, NIC bonding, Link aggregation on Unix/Linux environments
• Specialization in packages or APAR’s downloading and patching in severs to maintain security levels.
• Upgrading servers to latest AIX technology level and service pack level and upgrading severs from 5.2 to 5.3 and 6.1 on AIX.
• Experiencein AWS components Cloud Formation, Elastic Beanstalk, EC2, ELB, EBS, S3, RDS, Cloud Watch,etc.
• Work off hours periodically to accommodate maintenance, change requests and downtime windows.
• Proficient in administration of TCP/IP, NIS/NIS+, NFS, DNS, DHCP, LDAP sever and Samba sever and Implemented LAN/WAN systems.
• Experience inIBM Tivoli storage Manages functions of backup, mksysb, BMC patrol and recovery Management and experience maintenance of tape libraries.
• NIM (Network Install Management) set up, performing a NIM installation, troubleshooting, advanced client Configurations and NIM operations.
• Experience in Shell scripting(korn, bash) to automate system administration jobs.
• Experienced in installation, configuration, tuning, security, backup, recovery and upgrades of IBMAIX, Sun Solaris, Sun OS.

TECHNICAL SKILLS

Operating Systems: AIX 5.x, 6.x, SunSolaris 7,8,9 &10 Linux (RedHat 3.x,4.x,5.x, SUSE 10), HPUX 10.20,11.20, AIX, Windows, VMware ESX 2.x,3.x,Ubuntu

Hardware: Sun Ultra Enterprise Servers (E3500, E4500, E450,E420R,E250,Sun Fire (6800/4800/3800/ v880/v480/v210/v440/280R/15K/25K), Sun Workstations (Ultra 5, 10,20,Blade 100,150,2000) IBM P - series, IBM RS6000, DELL Poweredge 1650,2850,2950,6400. HP DL320, DL360, DL380, DL580(G5, G6)

EMC: Symmetrix, Sun Storage Array D1000, A5000, Hitachi arrays, Backup Devices, Ethernet Hubs, Routers, Repeaters, Jukebox, Printers

Tools: Solstice Disk Suite, VERITAS Volume Manager, OpenMigrator,Rsync, VERITAS Net backup 5.1, TSM 5.5, Cluster server 3.5 & 4.1, SunCluster 2.x & 3.x,Splunk, Nagios,AWS, AWS elastic beanstalk

Programming Languages: C, C++, java, JavaScript, HTML, KSH, CSH, Bash, and Perl programming.

RDBMS: Sybase, Oracle Oracle 7.x/8.0/9i, MySQL

Networks: NIS, NFS&DNS and Firewalls

Protocols: TCP/IP, FTP, SSH, SFTP, SCP, SSL, ARP, DHCP, TFTP, RARP, PPP and POP3

Storages: SunStorageTek Arrays, Hitachi, EMCCLARiiON

PROFESSIONAL EXPERIENCE

Confidential, Princeton, NJ

Sr.Linux Systems Administrator

Responsibilities:

• Installation, configuration, administration of AIX 5, 6 & Solaris 9, 10 using NIM, Jumpstart, custom configuration like package management, volume management of servers.
• Configured HMC, VIOS and LPAR/DLPARs on IBM Servers.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Applied security polices for hardening the server based on the company policies.
• Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
• Creating Zones, containers, LDOMs on Solaris servers, creating zpools, ZFS file system installing Oracle, Java based applications on them.
• Troubleshooting and administering High Availability using VERITAS Cluster Server on various business critical database & application production servers.
• Monitored Linux server for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager.
• File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Gathering requirements from customers and business partners and design, implement and provide solutions in building the environment.
• Responsible for monitoring and working on tickets. Following it up with business and technical teams, and ensuring the problem is successfully resolved.
• Experience in Sun Solaris 10(Creation of Zones, Service Management Facilities, Virtualization, Container based).
• Network configuration for interfaces, switch ports, Ethernet cards, host names, netmasks and routes details, DNS, NFS, LDAP, NTP and SNMP etc.
• Configured and managed Global File System (GFS) in Linux Servers, Creating and managing Cluster suite using GFS.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage on 2, 3, 4 node clusters.
• Excellent experience on creating zones and installed applications on individual zones. Responsible for configuring and maintaining global and local zones.
• Experience in using Perl, shell scripting for Applications, Backups and scheduling.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Implemented cloud services using Amazon Web Services (AWS- elastic beanstalk).
• Implemented automations tools Chef, Puppet, Splunk, DevOps.
• Automated the cloud deployments using Chef and AWS cloud formation templates.
• Implemented Chef recipes for deployment on internal data center servers and created deployment directly into Amazon EC2 instances
• Managing VCenter and VSphere Client 5.1 & Configured VM’s using Clone and VM Template
• Managing ESX/ESXI 5.0 Servers and
• Configured HP physical servers DL380/580/G7 with Multipathing and installed Red hat.
• Incident, Change and Problem tickets. Support for HP-UNIX servers.

Environment: AIX 6.x/5.x, Solaris 8/9/10, Redhat Linux 4/5, VMware ESX, IBM p7xx, p8xx, Sun Fire 440R Server, Sun Fire V880/890, Sun Enterprise T series servers, FacetTerm,OEL 6.5,SPARC Server 1000, HP 9000 K, L, N-class Server, IBM P series Servers, Veritas Net Backup 6.x, Veritas Volume Manager 5.x

Confidential, Fort Worth, TX

Sr. System Administrator

Responsibilities:

• Installation, configuration & upgrade of AIX 5/6, Solaris8/10, Linux AS 6/5, operating systems
• Configured and troubleshooting of NFS, NIS, NIS+, DNS, DHCP, FTP, LDAP, Samba, Apache servers in Solaris and Linux Servers.
• Worked on AIX to Linux migration with LPAR configuration.
• Worked on installation and configuration and disk and file system management using Veritas Volume Manager(VxVM),Veritas Cluster Server (VCS),Solstice Disk Suite in SolarisServers and Logical Volume Manager (LVM) in AIX and Linux Servers
• Performed setup and configured high-end Sun/IBM enterprise Servers likep770, p750, E15ks, E20ks, M5000s, M8000s, T2000's, T5120's and T5140's
• Configured HMC/LPAR on AIX and LDOM on Solaris.
• Performed memory and swap management to improve optimization and performance of the servers
• Experienced with working in Solaris Volume Manager (SVM), creating and maintaining meta data base.
• CreatingMetadevices, concatenation/striping, soft partitions, mirroring the devices, creatinghotspares.
• Allocated space to Meta devices depends on requirement, detaching and clearing Metadevice not in use.
• Created and managed Zettabyte file system (ZFS) in Solaris 10, HP-UX and Linux Servers. Created zpools. Exported ZFS from local zones to global zones
• Experienced in User and Group administration and security issues
• Performed upgrades of packages and patches in Solaris, HP-UX and Linux
• Worked on automated installations of Linux Servers using System Imager tool
• Implemented Virtual Servers in Solaris by using Solaris Zones/Containers, in HP-UX using npars and vpars features, in IBM AIX using AIX VIO/LPAR/WPAR, Installed OS on VirtualServers
• Backup management and recovery policy using Veritas Net Backup (VNB)
• Installed, configured and managed Oracle Real Application Cluster (RAC) and OracleData Guard on Solaris,HP-UX and Linux Servers
• Creation and scheduling Cron Jobs for backup, system monitoring and removal of unnecessary files
• Providing day-to-day user administration like adding/deleting users and managing user queries
• Planned and implemented migrations from one environment to another environment in OS level and Hardware level in Solaris and HP-UX servers
• Expertiseon live upgrades in Solaris and HP-UX servers. Worked on migration from UFS root file system to ZFS root file system
• Worked on installation, configuration and manage Redhat Cluster Suite in LinuxServers
• Installed, configured and managed Global File System (GFS) in Linux Servers, creating and managing Cluster suite using GFS
• Performed enable/disable the processes depending on the requirement and minimize the load average of the server using Service Management Facility (SMF) in Solaris 10
• Performed installation, configuration, upgrades, package administration and support for Linux systems on client side using Redhat satellite Network server
• Performed RPM Package Administration using RPM build
• Regular disk management like adding and replacing hard drives in existing servers and workstations.
• Creating partitions according to requirements, creating new file system or growing existing one over the hard drives and managing the file system
• Used Facet for increasing productivity for character based UNIX/Linux systems.
• Worked on VMware. Installed and monitored with various virtual environments with ESX 3.x and Virtual Center 2.X
• Monitored VM’s hosted in cloud environment through Nimsoft, Dynatrace and Splunk monitoring tools
• Performed configuration of Network Multipathing in Solaris and Linux

Environment: Solaris 8/9/10, Redhat Linux 4/5, HP-UX 11i, AIX, VMware ESX, Sun Fire 440R Server, Sun Fire V880/890, Sun Enterprise T series servers,FacetTerm, SPARC Server 1000, HP 9000 K, L, N-class Server, IBM P series Servers, Veritas Net Backup 6.x, Veritas Volume Manager 5.x

Confidential

Unix Administrator

Responsibilities:

• Installation and configuration of Solaris, AIX and RedHat Linux servers
• Worked on administration and patching of Solaris and AIX servers.
• Management and provisioning the servers on theRedHat Spacewalk and applying patches to the physical and VMware’s
• Working on Apache and Jbossincluding installation, configuration, management and troubleshooting
• KVM guest creation and management on physical servers in RHEL 5/6. Taking backups of running KVM guest servers using LVM Snapshot
• Configuring multipath and LVM on attached SAN disks
• Set up bonding, bridge (for KVM guest) on Ethernet ports
• Configuring Raids and upgrading firmware on Dell C6100 mini chassis
• Creating RPM packages for Jboss and Apache installations using rpm build tool
• Writing shell and perl script for application log rotations and server post installation tasks
• General troubleshooting of operating system, hardware, and application problems and diagnostic of internally developed J2EE applications
• Configuring LDAP on Linux servers for user authentication
• Manage systems remotely using Dell Drac and Digi Terminal port
• Developed Cron jobs and Shell Scripts (Shell, Python) for automating administration tasks like file system management, process management, backup and restore
• Maintained Load balancing, High availability, Failover functionality, and Disaster recovery included changing IP address of the web and app server machines, which caused change in the virtual host and http transport configurations
• Performed setting up of configuration server and boot server for Jumpstart process
• Implemented and organized a rollout project which involves upgrade of servers using Redhat Satellite Server
• Monitoring of space availability on each file system using the Shell Scripts
• Modified Kernel parameters and rebuilt kernel on Linux, HP-UX environment
• Extensively worked on Veritas Cluster Server to add new node, new service group and modify existing service groups, failover/switchover and other maintenance activity
• Used SystemImager to clone Linux Servers
• Implemented and organized a rollout project which involves upgrade of servers using Redhat Satellite Server
• Worked on Solaris10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones
• Experience in load balancing workload evenly across two or more servers, network links, CPUs, hard drives, or other resources, in order to get optimal resource utilization, maximize throughput, minimize response time, and avoid overload
• Configured new service group and resources for new application in Veritas Cluster Servers
• Supported 24/7 high availability production servers
• Working with backup team for the TSM backup & Restore in the Redhat Linux server
• Participation in change control activities, involved in memory sizing of different applications
• Complete periodic checks of production and development systems, CPU utilization, memory profiles, disk utilization, network connectivity, system log files, etc.
• Verify successful completion of daily incremental and database backups, following developed procedures

Environment: AIX, Solaris,RHEL, VMware vSphere, HP Proliant Servers DL series, Tivoli Monitoring, TSM Backup, EMC Powerpath, Splunk, SCSP, ILMT