SUMMARY

• Over 7 years of experience in Administration and Development of Unix(Red Hat Linux, SUSE Linux & Solaris) and windows (XP/Vista/7,2003/2008, )
• Experienced in Installing, configuring and administering Red Hat Linux AS 3.0/4.0/5.x/6.x running on Dell, Confidential and HP x 86 Servers.
• Experience with day to day System Administration tasks like new Builds, Installs, Upgrades, Patches, Migration, Trouble shooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine - tuning on UNIX (SUN Solaris, Red Hat Linux and HPUX) Systems.
• Experience working in Large and small scale Data Center Environments supporting Servers, Storage and Tape Libraries and Implementing Virtualization using VMware ESX 3.5 & 4.x Versions for Red hat Linux 5.x (5.3 &5.4) & 6.x and Windows and Solaris Zones & LDoms in Solaris 10 on Physical servers.
• Familiar with Splunkin creating Dashboards for generating the reports as required by Business and installing and configuring 3.x and 4.x versions on Linux /Solaris.
• Familiar working with VBlock and CISCO UCS blade servers.
• Experience working on High availability (HA) servers configured in Cluster environment. (Redhat cluster, Sun Cluster, HP cluster)
• Configured and worked on HP ILO for HP servers, Idrac for Dell services, SUN console for Sun hardware (XSCF, SC, FUJITSU Prime Power)
• Extensive experience in Online and Offline Migrations using LVM, EMC Open Migrator & VERITAS Volume Manager, and Experience working with EMC SAN Storage devices like Clariion, Celerra, DMX and VMAX, VNX and worked with EMC Software’s like Open Migrator & Power Path andworked with EMC Clarion CX3 Series SAN storage and troubleshooting CX4 devices using Navi Analyser also worked with Hitachi’s USP, USPV and VSP storages.
• Experience in installing and configuring storage technology such as SAN, NAS, ISCSI, and RAID.
• Hands on experience with NetApp Data ONTAP experience including CIFS, NFS, ISCSI, FCP, Volumes, Qtree, Quotas, Snapshots and SnapMirror.
• Experience on Red hat Linux Server & Desktop Environment using through Virtual Machine under VMware and Involved in Design, Planning and Implementing Migration activities to move application from Solaris 9, 10 & 11 to Redhat Linux Environment.
• Experience in Designing & Creating Zones on M3000, M5000 servers created LDoms on T2000, T5220 and T5440 servers and in Security Hardening in UNIX, Linux and Windows servers.
• Installed, configured and implemented the RAID0/1/5 volume management using VERITAS Volume manager (3.5/4.x/5.0) and Solstice Disk Suite (SVM) on Solaris. Also Experienced in VERITAS file system (3.x, 4.x, 5.0), VERITAS Net Backup (4.x, 5.x, 6.x) for disk management and mirroring tasks.
• Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, NIS+, LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA and also worked on monitoring tools like Cacti and Nagios.
• Worked on installing software’s packages like NIS, NFS, sendmail, open Ssh& compliers using Redhat Package Manager (RPM) on Redhat Linux, Packages on Solaris and Deports on HPUX and configured them efficiently.
• Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio and well versed in configuring Volume Groups and Logical Volumes, extended logical volumes for the system growth needs using Logical Volume Manager (LVM).
• Experience supporting 24x7 production computing environments providing on-call and weekendsupport and have an ability to work independently as well as a team member with ability to meet deadlines on or ahead of schedule. Extremely customer focused.

TECHNICAL SKILLS

Operating Systems: Sun Solaris 7,8,9 & 10 Linux (RedHat 3.x,4.x,5.x,6.x, OEL 5,6, SUSE Linux 10), HPUX 10.20,11i V1, V2 &V3,AIX, VMware ESX 2.x,3.x,4.x Windows NT/2000/2003

Hardware: Confidential x236, Confidential x232, Confidential x3650, Confidential HS22,HS12,LS22 Blade Center, SunT2000,T5240,T5120,HPC7000,BL460c,BL685c,BL465c,BL620c, SunSF15K,SF10KSF6800/4800,SF480/280,V880/890,E6500,E4500/E3500,E450/420/250,E220,Netra1405/X1,T1000/2000,T5120/5220,M4000, B6000.

Tools: Web Sphere Application Server 3.5,4.0, Netscape/iPlanet Server, MQSeries, WebLogic Server,Solstice Disk Suite, VERITAS Volume Manager, VERITAS Net backup 5.1, TSM 5.5, Cluster server 3.5 & 4.1, Sun Cluster 2.x & 3.x, Nagios, Puppet.

Programming Languages: C, C++, Bash, Shell scripting and Perl programming.

RDBMS: Sybase, Oracle 7.x/8.0/9i/10g, MySQL, DB2

Networking: NIS, NFS & DNS and Firewalls

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

PROFESSIONAL EXPERIENCE

Confidential, St. Paul, MN

Sr. Linux/Unix Admin

Responsibilities:

• Worked Primarily on RHEL 4/5, HPUX and Solaris 8, 9 & 10 Operating Systems.
• Involved in migration activities using Redhat LVM, Solaris LVM, Veritas and EMC Open Migrator.
• Installation of OAS (Oracle Application Server) on Solaris 9 and its configuration with oracle database.
• Experience running EMC GRABS, Heat and Sun Explorer reports and working with EMC and SUN/Oracle support teams.
• Migrated ORACLE RAC servers using system EMC Open migrator and effectively worked with the database team to bring up/down the databases.
• Writing Shell and Perl Scripting for automation of job.
• Tuning the kernel parameters based on the application/database requirement
• Used Veritas File system (VxFS) and Veritas Volume Manager (VxVM) to configure RAID 1 and RAID 5 Storage Systems on Sun Solaris.
• File system tuning, growing, and shrinking with Veritas File system 3.5/4.x.
• Installed and configured GFS cluster for holding databases.
• Manage user’s accounts for the team access for Redhat Satellite Server.
• Build channels and pull the packages from MasterRedhat Satellite Server.
• Troubleshooting hardware, software and configuration problems for various protocols and topologies.
• Configured open LDAP Red Hat Linux systems.
• Setup optimal RAID levels (fault tolerance) for protected data storage in NAS environments.
• Install and configure DHCP, DNS (BIND, MS), web (Apache, IIS), mail (SMTP IMAP and POP3) and file servers.
• Deployed Puppet for configuration management to existing infrastructure.
• Tested and then managed the upgrades of Puppet infrastructure from 0.25.4 to 2.6.6.
• Upgraded Solaris 9 to Solaris 10 and worked with Solaris zones/containers/LDOMS, Used Solaris Cluster to deploy two-node cluster.
• Performed patching, backups on multiple environments of Solaris, Linux and VMware.
• Worked with different Active directory databases like Microsoft AD, Tivoli Directory server with LDAP.
• Expertise in troubleshooting the systems and managing LDAP, DNS, DHCP and NIS.
• Worked on making DNS entries to establish connection from server to DB2 database.
• Experienced Cloud Computing technology.
• Experienced working on different remote consoles like HP-ILO, IDRAC, RackableRoamer.
• Created Assisted other UNIX administrators when help was needed (i.e. creating UNIX accounts, writing scripts to perform system administrator functions, responding to trouble tickets, etc).
• Involved in preparation of functional and system specifications. Estimated storage requirements for applications
• Configuration and administration of Fiber card Adapter’s and handling of SAN (SAN arrays, HITACHI, EMC).
• Creating volumes using storage for VMAX Array on Redhat & Solaris servers.
• Data migration at Host level using Red Hat LVM, Veritas Volume Manager and Solaris LVM
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.

Environment: Red Hat Linux (RHEL 3/4/5/6), Solaris 9/10, Logical Volume Manager, Sun & Veritas Cluster Server, Global File System, Redhat Cluster Servers.

Confidential, Charlotte, NC

Sr. Unix/Linux Admin

Responsibilities:

• Administered the entire heterogenous environment comprising of FreeBSD, RedHat Linux and CentOS
• Installed and configured of hardware and OS (Solaris 10, SUSE and RHEL 4/5) on x86 servers.
• To provide ongoing support in systems management and administration of LINUX/UNIX in global-scale environment.
• Installation and use of different Business packages on Solaris Platform.
• Provided 24x7 supports for various divisions within the Company and resolve all production issues in a high pressure and time sensitive environment.
• Network monitoring using NAGIOS tool.
• Implemented Puppet Version 3 for Automation in the Non-production environment.
• Issues related to NFS, NIS, and LVM, Grub corruption, configuration & maintenance of RAID (level 0, 1, and 5).
• Troubleshooting VERITAS Volume Management and cluster server environment.
• VMware configuration, auto mount, installing Solaris/Linux software and patches, NTP and swap space, memory and capacity alerts, SSH and k5login and hung system reboots.
• Developing scripts in PERL and SHELL to automate the process.
• Disaster Recovery and Change Management: Designed and implemented disaster recovery solutions such as clusters using VERITAS Cluster server for storage replication and to allow seamless failover of IP on the DR site.
• Server Optimization and Workstations Consolidation.
• Implemented a custom-run stage to ensure all Yum repository configuration was done before proceeding with any application, installation or configuration.
• Installation of Windows Server 2003 and creating Active directory Users.
• Production Support & Systems engineering duties related to Red hat system administration DNS, DHCP, NFS, NIS, LDAP, user account maintenance, backup & recovery, Auto-mounting, License Management, Printer configuration.
• Created test scenarios for testing NIS, NFS, DNS and other functionality of the OS.
• Maintained system security, including password checks, permission scans, implementation of security ensuring tools Linux environment.
• Managed disk space on server systems using Software RAID and Logical Volume Manager.
• Installed and maintained web servers JBoss 4.x, Tomcat and Apache HTTP (1.3, 2.2) Web server in Red Hat Linux.
• Dealt with Linux Utilities: KICKSTART, SSH, FTP, AUTOFS, Quota Management, wrappers.
• Involved in Design, Configuration & Implementation of Unix/Linux migration activities from 3PAR to EMC SAN devices like VMAX.
• Involved in 24X7 Production support, Build and Migration Assignments.

Environment: Red hat Linux 3,4,5,6 Sun Solaris 8,9,10 Sun V440, V 20 T5240 Sparc stations 20, Switches, VMware ESX 5.1, oracle 11, Veritas Cluster Server 5, Veritas Operations Manager, EMC VMAX.

Confidential, Kansas, MO

Sr. Unix/Linux Admin

Responsibilities:

• Installation and Configuration of Solaris 10, RedHat Linux 5 operating systems on large distributed environment.
• Configured, administered and effectively monitored AIX on Confidential bladecenter servers and P-series servers.
• Implemented remote installation on servers using AIX Network Installation Manger (NIM), RedHat Linux Kickstartand Solaris jumpstart/JET Servers.
• Installed and configured RedHat softwares and 3rd Party tools using RPM’s and YUM on RedHat servers.
• Worked on SAN & NAS devices like EMC Clariions, and NAS Devices like NetApp filers.
• Worked on NetApp filers like FAS 3240 & 6070 running DATA ONTAP 7.x.
• Involved in creating volumes on raid groups and aggregates and sharing to Windows and Unix servers using CIFS & NFS.
• Worked on scripting using shell, bash and korn.
• Experience working Snapmirror & Snapvaults for backup and replication purposes on NetApp devices.
• Upgraded Red Hat Linux servers from 5.2 to 5.4 and AIX from 5.2 to 5.3.
• Involved In Migration from Solaris to Red Hat Linux.
• System performance tuning, User administration and security.
• Scheduling Backups, Monitoring & taking failover test of Veritas Clustered servers.
• Clustered multiple RS/6000 machines on AIX 5.1/5.2 using HACMP, configured HACMP cluster to keep applications running.
• Monitoring of Tivoli storage logs for restarting any failed backups or trouble shooting any file permission or stale file handling problems.
• Ability to screen and diagnose client inquiries and problems; troubleshoot to clearly understand problems (root cause determination), solve problems, use operational documentation (runbooks)
• Responsible for administering and maintaining RedHat Linux work stations running Apache web server, iPlanet and SUNONE.
• Configured and Adminstered JBOSS 4.2 on RedHat Linux and Solaris Cluster Nodes.
• Installed and configures Weblogic 9.1.
• Installed and Configured VMware ESX 3.5 server and Installed Red Hat Linux servers on top of it.
• Worked on EMC Legato networker for the backup and data recovery
• Provided eCommerce application support for Java/J2EE based ATG Dynamo and Websphere environments.
• Worked in Data center environment for configuring new Hardware.

Environment: AIX 4.3,5.1,5.2,5.3,Solaris 8/9/10, RedHat Linux 5.x, Confidential Blade center Servers (HS20, HS21), Lenovo workstation’s (D2, D3, D10, D20), Confidential P570, p590, 595MQSeries 5.0

Confidential

Linux/Solaris Admin

Responsibilities:

• Installation of Sun E250, E450, Sun E3000,E6900, SunFire v440/v480/v490 with Solaris 8/9.
• Upgraded/Migrated Solaris 7 to Solaris 8 on Sun servers and workstations.
• Configured Winbind on all Linux workstations which enables all the Linux users to be authenticated on Microsoft Windows 2000 Active Directory Server.
• Monitor T1, ISDN, 56k Modem, Router connectivity and all main servers' activity on a continuous basis.
• Used RPMs to install, update, verify, query and erase packages from Linux Servers.
• Authorized Solaris users/groups to access various applications and troubleshot various user problems using management tools.
• Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, UAT/Staging.
• Incident management for Unix Servers (Solaris, Linux and AIX).
• Involved in migration AIX servers from 5.2 to 5.3.
• AIX systems administration and Disk Management using SMIT
• Primary responsibility includes building and supporting Solaris/ Red hat Linux 3, 4 servers.
• Extensive experience in installing, integrating, tuning, and troubleshooting Apache, Tomcat WebSphere and Weblogic application server.
• Installation and configuration Veritas Net Backup on Sun Severs and performing Backup using Veritas Net Backup.
• Sudo administration and Redhat Linux package administration using RPM and YUM.
• Involved in migration of projects from one flavor to another one.
• Worked on SAN using Tivoli Storage Manager in allocating filesystems to the end users and for managing storage.
• Involved in development, user acceptance and performance testing, production &disaster recovery server.
• Worked in Data center environment for racking servers and configuring new Hardware.
• Worked with other IT teams, customers (users), and other managers in helping build and implement systems and standards.

Environment: Confidential AIX 4.3.3, 5.1, 5.2, Solaris 8/9/10, Red Hat Linux 4/5, Sun Enterprise Servers, SUN FIRE 6800/E6500/E4500, Sun Sparc1000, Confidential RS/6000, Disk Suite.

Confidential

Linux Admin

Responsibilities:

• Installation, Configuration, Upgradation and administration of Sun Solaris, RedHat Linux and HP-UX.
• User account management, managing passwords setting up quotas and support.
• Worked on Linux Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SFTP, SSH, LDAP integration.
• Controlled the access to users by adding or removing the user from the groups as per the requirements by using LDAP.
• Troubleshooted LDAP server if there is any login issues for the users.
• Used LDAP to setPermissions,as an administrator to allow only certain people to access the LDAP database
• Network traffic control, IPSec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat Linux Software.
• Managing file systems and disk management using Solstice Disksuite.
• Responsible for configuring real time backup of web servers.