SUMMARY

• 9+ year’s hands on experience in RHEL/SLES/IBM AIX/ Unix system, routers, switches, firewalls and servers administration.
• Extensive experience in setup, configuration, upgrade, maintenance, performance monitoring and troubleshooting on different UNIX platforms like RHEL, SLES, IBM AIX, Sun Solaris,Windows system software and hardware.
• Hands on experience in administration and maintenance of application services like DNS, NIS, LDAP, Send Mail, HTTP, Apache, DHCP, SMTP, FTP, Samba and Oracle RAC.
• Installed, monitored and supported SAP, WebSphere Application Server, DB2, IBM HTTP/ Apache Web Servers in RHEL and AIX environment for various projects.
• Extensive command on IBM virtualization, Xen virtualization and Vmware virtualization.
• Installed and configured DNS, DHCP servers on RHEL.
• Worked on VMWARE VM and installed the RHEL image using kickstart.
• Experienced in LPAR, DLPAR and micro partitioning and creating new partitions. Assigning resources between LPAR.
• Experienced with LPM (Live partition Mobility)
• Extensive Experience in AIX System Dump Generation and sending System Dump/snapshots to AIX System Support Center
• Expertise in Planning, Installation, Configuration and Maintenance of IBM HACMP 6.1 on AIX 5.3/6.1.
• Administered shell interfaces, groups/user accounts, login scripts, service pack and kernel patches & updates.
• Configured Shared Ethernet adapters (SEA), virtual disks, virtual fibre adapter in VIO and client lpars.
• Administering and troubleshooting of AIX HACMP Cluster.
• Installed and configured Veritas Cluster on RHEL.
• Experienced in writing scripts such as Korn Shell (ksh) and Perl
• Experience with LVM, NIM, User & System Resource management, job scheduling, Paging Space management.
• Linux Administrator experience impacting organizational performance through expert development, enhancement, and administration of complex technical platforms
• Extensive use of Resolved Application Startup problems, PATH problems, Name conflicts, TCP/IP and Networking Problems in AIX.
• Experienced in IBM RS/6000 SP System Software Maintenance.
• Installed and configured a Tivoli Storage Management server on Windows 2000 that serves both Windows and UNIX machines.
• Experienced in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX, RHEL, SLES, Sun Solaris and Windows 2003 servers.
• Networking of HP and Intel based servers in a Heterogeneous Networking Environment.
• Highly organized, proactive, multitask oriented and able to prioritize tasks to meet project’s deadlines.
• Able to work independently and within the team.
• Able to create positive and professional business relationship with internal and external clients.
• Developed ability to work in fast - paced atmosphere.
• Provided production support in an on-call rotation in a 24x7 environment.

TECHNICAL SKILLS

Operating Systems: IBM AIX 7.1, 6.1, 5.3, 5.2, 5.1,4.3,4.2, RHEL 5/6, SLES 10, Windows 2000/2003, Sun Solaris.

Hardware: pSeries 795,780, 770,710,630, 650, 660, 670

Web/Application Servers: SAP, TSM, WebSphere Application Server 5.0/6.0,, WebLogic Server, HTTP Server, Appache, Tomcat, HTML, DHTML, XML, Java Script, JSP, Servlets, EJB

Networking: TCP/IP, NIS, NFS, DNS, DHCP, SMTP, POP3,VPN, IMAP, SAN,NAS Cisco Routers/Switches, LAN.

Databases: IBM DB2, Oracle 9i/10/11

Programming: C, C++, VB, HTML, Shell programming.

PROFESSIONAL EXPERIENCE

Unix Administrator/Engineer

Confidential, Columbus, Ohio

Responsibilities:

• Worked on AIX 6.1 and RHEL 6.2 build and support.
• Support and troubleshooting on RHEL, AIX and Solaris Pre Production and Production servers.
• Installed and configured different operating systems such as RHEL and AIX and built filesystem using LVM.
• Administered Linux servers and successfully installed, configured and managed Apache web server and FTP server using Red Hat Linux.
• Installed and configured different operating systems e.g. Red Hat, Windows, SUSE, Cent OS, Debian and Ubuntu using RAID and LVM technology.
• Implemented and enhanced UNIX/ Linux shell scripts using Ksh, Csh, Bash and Perl Scripting.
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Supported a large infrastructure of RHEL and AIX servers, providing corporate IS infrastructure (email, file service, etc.) using NIS, NFS.
• Planned, scheduled and Implemented OS patches on both RHEL and AIX servers as a part of proactive maintenance and Secure Shell (SSH) implementation.
• Installed AIX and RHEL created user logins, administering the system performance and monitoring user activities.
• Configured LDAP and monitored LDAP services on Unix and Linux servers.
• File system Administration, Setting up Disk Quota, configuring backup solutions on SAN/NAS storage.
• Configured SAMBA and shared the filesystem with windows user and set users password.
• Installed and monitored websphere and weblogic application.
• Managed Disks and File systems using LVM on RHEL and AIX.
• Troubleshooting logon problems, boot process and printing.
• Applied patches on all Linux Boxes from common repository using YUM.
• Documentation of all the setup procedures and System related Policies.
• Monitored Linux server for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring.
• SENDMAIL configuration and administration, testing the mail server.
• Patched management and regular system updates.
• Installed NetBackup client on RHEL and AIX servers for daily, weekly and monthly basis backup.
• Reviewing system log files for errors. Setting up cron jobs for backups and monitoring processes.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager.
• Troubleshooting VMWare ESX server related issues, maintaining their virtual server environment, creating and deleting virtual servers.
• Experience with NIM installation, setting up NIM servers and clients and defining various NIM resources like lppsource, spot, mksysb, image.data, bosinst.data.
• Maintained availability, increased capacity & performance of production machines by upgrading their hardware (disks, CPU, memory, IO board, power cooling unit, mother board etc) & firmware.
• TCP/IP Configuration like assigning IP addresses, configuring network interfaces, assigning static routes, hostnames.
• Created lpar profile from HMC 7.7.4 on Power 770 and 795 machines according to the requirements
• Managed the VIO 2.2.1 and performed all the vscsi and npiv mapping for the lpars.
• Successfully shutdown and start the VM using Vsphere client and checked cpu and memory.
• Built ext4 filesystems, mount and umount for application and database team according to their request on RHEL 5.8 and RHEL 6.
• Added application scripts in cron jobs on RHEL.
• Checked the multipath on RHEL servers and added all path in multipath configuration file for mutipathing.
• Mounted NFS filesystems on AIX and RHEL servers according to the request.
• Created volume group, logical volume and file systems according to the database and app requirements.
• Responsibilities included manage the AIX LPAR, LVM and SAN operations and manage the application and database users.
• Built and configured the file systems and created ASM disks on raw disks for Oracle RAC according to the documentation and installed Guardian.
• Built the standalone database file systems and ASM disks for Database Team.
• Involved on various troubleshooting with SAN and Network team and resolved tickets.
• Update the server’s details in TAMS inventory tools and filled up the SAN details in Prime for the storage.
• Installed and configured the GPFS and ACFS file systems on various AIX 6.1 Production Servers.
• Identified security vulnerabilities using ESM (Symantec: Enterprise Security Management) and performed the necessary updates.
• Submit the EURC for adding hostgroup to the Keon Boks Master Servers and installed the Boks (LDAP) on every new build AIX and RHEL servers and test the communication and authentications.
• Installed the control-m agent for Database team for job scheduling.
• Worked closely with various teams such Design Architects, QA and support engineers.
• Worked with netbackup team for adding servers for backup and installed the netbackup agent on each server.
• Built AIX and RHEL servers according to the Chase standards and implements and test the security standards.
• Installed the ESM agent (Enterprise Security Management) on AIX and RHEL servers and scan the servers and remediate the security standards.
• Successfully installed and configured the Veritas Cluster (VCS) products VxFS and VxCFS on RHEL 6.2 servers for High Availability.
• Responsible for hardware and operating systems installations, patches, maintenance and tuning for AIX 6.1 and RHEL 6.2.
• Support over the weekend data center migration, OS migration, upgrades activities as needed.

System Administrator/Engineer

Confidential, Milford, Michigan

Responsibilities:

• Worked on HMC, installed and configured VIO Server, LPARs/DLPARs and subsequent maintenance and administration on IBM Power 7 machines.
• Configured the fresh HMC and add new IBM Power770, 780 and Power710 machines.
• Upgrade the latest HMC version and installed fix pack on all HMC.
• Installation/administration of AIX, Linux, Solaris Servers on a LAN, setting up 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, POP3) and file servers.
• Installed VMware ESX server on Dell Servers and configured RHEL,SLES / Windows 2000 virtual machines for various applications.
• Installation of software packages and checking the integrity of the installed packages. Installed different RPM on RHEL.
• Monitored Linux server for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring.
• Setup NFS file systems and shared them to clients.
• Installation of software packages and checking the integrity of the installed packages.
• Troubleshooting backup and restore problems and constant monitoring of system performance.
• Created the Dual VIO profile and installed on local disk of Power770 and Power780 machine according to the architecture diagram and documentation.
• Successfully perform LPM (Live Partition Mobility) and migrate to the other frame on same HMC.
• Created mirror the VIO and added in bosboot list.
• Created virtual Ethernet with appropriate VLAN for client lpars and sent request to network team to setup the same vlan according to the documentation.
• Configuration and administration of Fiber Adapter’s and handling AIX part of SAN
• Created Pre-Production lpars profile and submitted WWPN to SAN team for provision the OS disk.
• Installation and Configuration of Network Installation Manager (NIM), configuring the NIM Master and assigning the clients and taking the mksysb of the NIM client on the NIM Master.
• Experience with NIM installation, setting up NIM servers and clients and defining various NIM resources like lppsource, spot, mksysb, image.data, bosinst.data
• Created the virtual fibre adapter on VIO and mapped to the client lpars.
• Pushed the OS image on SAN disk for Pre-Production lpars with the help of NIM.
• Installed and configured EMC powerpath and installed the License key on all lpars and checked that all paths are active.
• Created Volume Groups, Logical Volume and Filesystem according to the build documentation.
• Created users and group, installed and configured ssh and sudo files according to the instruction.
• Implemented and configured SAP checklist requirements on all lpars such as kernel parameters and application users limits
• Created NFS mount point and mounted on the all Pre-Production lpars.
• Installed the HPOV monitoring agent tool on all lpars.
• Daily troubleshooting and worked on IBM SAP application request.
• Remediation the SOX compliance according to the GM TSS documentation.
• Installed lsof, java and vnc filesets on the request of SAP application team.
• Created dual VIO profile for Production and DR/FO environment.
• Created the Production and DR/FO lpars profile and push the image using NIM
• Took the mksysb for all Pre-Production, Production and DR/FO lpars using NIM.
• Performed testing to verify failover and fallback of Dual VIO server on p770.
• Installed the EMC networker client, SAP database module for backup on all lpars and worked with application team and backup team to configure the filesystems level backup.
• Used to take HMC and its lpars profile monthly basis backup on NIM server.
• Provided sulogs and users details information to the audit team.
• Implemented the Power HA/XD 6.1 (HACMP) and configured the cluster between two sites, Production and DR/FO.
• Tested Power HA/XD implementation with SAP application team and EMC SRDF team.
• Successfully failover the Production environment to the DR/FO side in disaster recovery test.
• Upgrade the Power770 and HBA firmware.
• Built the QA environment according to the GM request.
• Configured the NAS storage and mounted on Pre-Production environment and HP team migrated the SAP application data from Canada to Milford SAP environment.
• Worked on Gold Build AIX 6.1 and submitted to GM for approval.
• Daily worked on Services request, ticketing and troubleshooting.
• Experience in installing HACMP/XD (High Availability Cluster Multi Processing) and configuring HeartBeat on the H/A cluster.
• Migrated AIX OS from AIX 5.3 to 6.1 on p770.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager.
• Troubleshooting PowerVM and PowerHA on pseries server related issues, maintaining their virtual server environment, creating and deleting virtual servers.
• Helped SAP application team for application migration from Mexico and Canada data center to Milford and Warren (USA) data center.
• Troubleshoot and helped application team for application migrate from HP-UX to AIX 6.1.
• Provided remote technical support for the AIX software team.
• Provided support to EMC backup team to configure and troubleshooting the backup the SAP instances filesystems.
• Worked on AIX, SLES and Solaris troubleshooting issue and handles daily tickets

Environment: s: IBM AIX pseries, RHEL, SLES, Solaris 10, Tivoli Storage Manager, EMC Storage, SAP, Oracle 11g, SAN

AIX System Engineer

Confidential, Issaquah, Washington

Responsibilities:

• Worked with IBM team to deploy Websphere Application Server on Power7 machine, model770 and model780.
• Performed LAN Administration including: adding and deleting users, performing regular backups, and maintaining LAN security.
• Installation, configuration and maintenance DNS servers, Mail servers, NFS and NIS on Sun Solaris servers.
• Configure the printer using various access methods, maintaining spool and output request.
• Performed phone support for all remote sites and traveling corporate personnel. Determined computer-related needs for the entire corporation.
• Managed group and user account permissions for users.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Administration responsibilities include user, group, disk, printer and security management, File sharing Permissions.
• Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Send mail and Print servers as per the client’s requirement.
• Process administration (i.e. monitoring processes using PS utility, signaling a running process using kill and killall command, monitoring processes and system load using VMSTAT, UPTIME utilities, monitoring logs, scheduling processes using CRON utility).
• Supports all the Products on the AIX servers and Sun Servers.
• Installed VMware on Dell Servers and configured Solaris 9, Red Hat Linux 4 / Windows 2000 virtual machines for various applications.
• Involved in developing various scripts to automate the day to day administration activities including C, Shell and Perl scripting languages and utilities.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Diagnosed hardware and software problems and provided solution to them.
• Installed and configured DNS, DHCP servers for LAN.
• Configured FTP servers to maintain shared folders in the organization.
• Background job scheduling and monitoring.
• Configured and implemented Bind and Apache web servers.
• Settled up automatic installation and configuration of new servers and workstation using kickstart.
• Configured and implemented Samba installation and configuration on RHEL.
• Created Lpars through HMC v7 according to Application requirements.
• Successfully installed AIX 6.1 operating system on lpars using NIM server.
• Worked on System Director for daily management and administration.
• Created Volume groups, logical volume and file systems for WAS application and altinst rootvg.
• Responsible for WAS and DB2 application installation and maintenance.
• To run silent installation and configuration for application, edited response files and create scripts for automation.
• Installed update installer, service pack and fix pack for Websphere application server.
• Created users and groups for application and add variable PATH for application.
• Responsible for start and stop WAS and DB2 applications and make sure that application processes are running successfully.
• Created Dev, QA and Prod environment according to Costco requirements.
• Worked on HMC, VIO Server v2.1, LPARs/DLPARs and subsequent maintenance and administration.
• Took system backups using mksysb and store on NIM server. Using tar, cpio and gzip took backups for files.
• Helped the team for Websphere application Server installation documentation.

Environment: s: IBM AIX pseries, RHEL, SLES, Tivoli Storage Manager, Tivoli Provisioning Manager, IBM Maximo tool, SAN, Windows, Cisco.

AIX System Administrator

Confidential, Myrtle Beach, South Carolina

Responsibilities:

• Worked on HMC, installed and configured VIO Server, LPARs/DLPARs and subsequent maintenance and administration.
• Create /Installed/Configured Single Virtual I/O server with MPIO access to storage.
• Performed testing to verify failover and fallback of Dual VIO server on p6-570.
• Installation and Configuration of Network Installation Manager(NIM), configuring the NIM Master and assigning the clients and taking the mksysb of the NIM client on the NIM Master
• Configuration and administration of Fiber Adapter’s and handling AIX part of SAN
• Worked on partition mobility during VIO upgrade.
• Experience with installations, configuration, upgrade and administration of IBM pSeries and Power5/Power6 servers on various levels of AIX operating system environments
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager.
• System policies and hardware profiles, hard disk configuration for fault tolerance, disk mirroring and backup the data using BACKUP devices.
• Provided remote technical support for the AIX software team.
• Maintained availability, increased capacity & performance of production machines by upgrading their hardware (disks, CPU, memory, IO board, power cooling unit, mother board etc) & firmware.
• TCP/IP Configuration like assigning IP addresses, configuring network interfaces, assigning static routes, hostnames.
• Gathered performance statistics on the nodes and tuned them to meet the requirements and documented the modified configuration.

Environment: s: IBM AIX pseries, RHEL 4.x/5.x, Suse, Tivoli Storage Manager, EMC Storage Server, IBM Maximo tool, SAP, Oracle 9i/10g, SQL, SAN, Windows, Cisco.

AIX Administrator

Confidential, Saddle brook, NJ

Responsibilities:

• Responsible for Installation, up gradating, Configuration Management, Maintenance and Systems Development of AIX Systems.
• Provided remote technical support for the AIX software team
• Monitoring Process load average and Disk Usage.
• Installation of packages and patches required to system.
• User Administration password restrictions and security implementations.
• Maintenance of PCs and Servers, Troubleshooting and repairing in case of crash or application failure.
• Responsible for creating LPAR, DLPAR and micro partitioning and creating new partitions. Assigning resources between LPAR.
• System policies and hardware profiles, hard disk configuration for fault tolerance, disk mirroring and backup the data using BACKUP devices.
• Recommended, evaluated and purchased IT assets and additional responsibilities included documentation of general systems administration processes, dissemination of critical information (e.g. security, software updates) to the general users in the company, as well as diagnosing and troubleshooting the network, hardware, and software problems. Used and corrected network and building diagrams.
• Worked with DBA Team for Oracle Installation and database configuration as well as Oracle Performance Tuning.

Environment: s: IBM AIX 5.x, RHEL 4.x/5.x, Suse, Solaris 10, Tivoli Storage Manager, SAP, Oracle 9i, Cisco IOS, Korn shell, Bash shell,Csh, NFS, SAN, DNS

System Administrator

Confidential

Responsibilities:

• Installation, configuration, maintenance of AIX on IBM RS6000.
• Configured IBM RS 6000 for production, staging and test environments.
• Managed group and user account permissions for users.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Administration responsibilities include user, group, disk, printer and security management, File sharing Permissions.
• Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Send mail and Print servers as per the client’s requirement.
• Process administration (i.e. monitoring processes using PS utility, signaling a running process using kill and killall command, monitoring processes and system load using VMSTAT, UPTIME utilities, monitoring logs, scheduling processes using CRON utility).
• Supports all the Products on the AIX servers and Sun Servers.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Diagnosed hardware and software problems and provided solution to them.
• Installed and configured DNS, DHCP servers for LAN.
• Configured FTP servers to maintain shared folders in the organization.
• Background job scheduling and monitoring.
• Configured and implemented Bind and Apache web servers.
• Configured and implemented Samba installation and configuration on different platform in heterogeneous network environment.
• Perform Site Surveys, and provide documentation for Cable Company and design the layout for cable installations.
• Installed and configured different operating systems e.g. Red Hat, Windows, SUSE, Cent OS.
• Using VMware installed different systems through network based, CDs, and DVD.
• Used cron to schedule command execution on Linux server and workstation.

Environment: s: IBM AIX, Red Hat, CentOS, Oracle 9i, Bourn Shell, NFS, SAN, DNS. Cisco IOS, Windows

Linux Administrator

Confidential

Responsibilities:

• Installed and configured different operating systems e.g. Red Hat, Windows, SUSE, Solaris.
• Ensure safe and secure backup and storage of organizational data and all the servers.
• Evaluate IT equipment and plan for future hardware needs & software needs.
• Maintaining smooth operations of Linux based servers: Squid Cache server, Samba server qmail server, Apache server, MySQL etc.
• Ensure safe and secure backup and storage of organizational data.
• System and Network administration, User administration on Windows 2000 and Linux.
• Troubleshooting network problems such as routing, repairing systems in case of crash.
• Designing and implementation of Network and System.
• Installation and Configuration of Network and System.