Summary

• A Certified pSeries System Specialist with AIX 5.2/5.3/6.1/7.1 with over Seven years of experience in the software industry, specializing in Linux/AIX Administration.
• Extensive experience in the areas of design, development, implementation, support and user training on IBM AIX 4.3.x/5.2/5.3/6.1/7.1 SuSE Linux SLES 10/11, RHEL 5/6 and Windows NT/2003/2008 Operating Environments.
• Worked on various IBM pSeries servers, MQseries, Tivoli Storage, RS/6000, P570, P505, P510, A50, P590 and IBM pSeries Bladecenter and have extensive experience in Configuration, Installation and Administration of AIX operating Systems.
• Excellent knowledge of hardware architecture of JS20, JS21, JS22, HS20, HS21 and HS22 IBM pSeries Blades in IBM Bladecenter.
• Excellent knowledge of configuring the Management Modules in the Bladecenter and excellent ability in working on Nortel switch Four Port and Six Port within the bladecenter.
• Skills include performance analysis/tuning of Linux/AIX.
• Strong hands-on experience on IBM AIX - LVM, LVM Mirroring, SMIT, Disaster recovery Using mksysb, tar and cpio.
• Firm understanding of all aspects of the LINUX/AIX Operating System including kernel internals, shells, file systems and sockets.
• Experienced in installing AIX 5.1/5.2/5.3/6.1/7.1 using NIM.
• Experienced in setting up NIM environment and loading servers and performing upgrades with NIM on AIX servers.
• Configuration management including the building of LPARs and configuring the hardware devices that support them.
• Configuration and management of Virtual I/O on LPAR and assigning VLAN id and configuring Virtual Ethernet adapter.
• Excellent understanding of error logging subsystem and Performance Monitoring tools like vmstat, iostat, netstat on AIX Version 5.1/5.2/5.3/6.1/7.1
• Expertise in installation, configuration, maintenance and troubleshooting of HACMP v4.5/5.2/5.3 on AIX
• Extensive use of Resolved Application Startup problems, PATH problems, Name conflicts, TCP/IP and Networking Problems in AIX.
• Experienced in installing TSM 5.3/5.4 on AIX/Linux/Windows servers, automating the backups with scripts and troubleshoot TSM related issues with backups and perform Disaster recovery with TSM.
• Experience in administering VMware Infrastructure Client 3.5 and Vsphere 4.0.
• Experience configuring and supporting IBM clustering products PowerHA and GPFS.
• Perform periodic file system GPFS tuning and monitoring jobs to enhance system/complex performance.
• Expertise in VERITAS Volume manager VxVM , Creating new file systems, mounting file systems and unmounting file systems.
• Expertise in implementation and maintenance of Apache SMTP, DHCP, NFS, NIS, NIS , LDAP, DNS, SAMBA, SQUID, Postfix, Sendmail, FTP, Remote Access, Security Management and Security trouble shooting skills.
• Experienced in authoring, coordinating, directing, and executing various operating system and network performance benchmarks.
• Performed user tasks including submitting and managing parallel, serial and interactive jobs.
• Experienced with support 24/7 on AIX administration.
• Excellent leadership skills to finish assigned projects in time and motivating team to finish up the tasks and provide assistance to team on 24/7 basis.
• Skilled in replacement/repair/upgrade of software, hardware and firmware.
• Excellent knowledge in writing Shell Scripts Korn, perl .
• Excellent knowledge of iSCSI attached Network Storage Netapp connected to the JS20 and JS21 Blades in the IBM Bladecenter.
• Extensive experience in TCP/IP networking.
• Extremely fast and adept at learning new systems, protocols, programming languages and applications.
• Excellent team worker and ability to quickly adopt and work under minimal supervision.
• Experienced in performing encryption for filesystems and database using Vormetric Encryption software on AIX/Linux servers
• Ability to interact professionally with clients and peers.
• Excellent problem solving skills, willingness to take the initiative ability to work productively in teams.
• Technical Skills and Product Expertise
• Routers : CISCO 3600, 2500, 1600 series
• Switches : Ethernet, Fast Ethernet, Layer 2 switches
• Switch Models : Cisco Catalyst 3500, 2900, 1900 series
• Protocols : TCP/IP, NetBeui
• Operating System : AIX, Redhat SUSE Linux, Win NT/2000, 2003
• Databases : SQL Server 2000, Oracle, DB2, Informix

Work Experience

Confidential

Role : UNIX system Administrator

Environment:- AIX 6.1/7.1, Rehat Linux 5/6, Websphere 5.0/6.0, IBM BladeCenter, P505, P510, P590, P570, Cisco Switches, pSeries 6/7, Windows NT/2003/2008, HACMP Clusters, VIO, LPAR, DLPAR, IBM HTTP server, Apache, DB2, EMC storage, and Korn Shell scripts.

RESPONSIBILITIES

• Work as UNIX System Administrator for AIX 6.1/7.1 and RHEL 5/6 servers.
• Administer and Support Windows NT/2003/2008 server by performing DNS administration, record changes, AD changes such as adding User Accounts, Staging Hardware.
• Work as part of a technical support team to perform incident management, problem management and change management to enterprise network or security domain.
• Perform User/Filesystem and system performance management on AIX, Linux and Windows servers.
• Perform Technology Level and Service Pack updates on AIX and Linux servers.
• Edit/Tweak/Run various Korn shell scripts for automation on AIX and Linux servers.
• Review logs from error and troubleshoot hardware and operating system issues.
• Perform performance tuning on AIX and Linux servers.
• Troubleshoot down servers, clustering hosts/VM's, building and cloning VM's using VMWare ESXi.
• Perform AIX SAN disk migration and decommission servers in Data Center environment.
• Perform backup Recovery with Symantec NetBackup to SAN and tape libraries.
• Troubleshoot and correct any and all server, application and system issues with impact flow of business.
• Determine and exercise corrective actions for emergency situations, Collaborate, share information with, and coordinate efforts with other team members.
• Work the shift hours and schedule required supporting the enterprise.
• Ensure the day-to-day availability of the production systems, Monitor, troubleshoot, interrogate alerts, and help correct incidents with appropriate action.
• Operate analytical program to identify potential errors and incompatibility, Analyse issues and formulate solution alternatives that meet defined IT or business problem.
• Document and communicate incident priority, symptom, business impact, status, and resolution.
• Create incident reports to document exceptions to normal or scheduled activities, including hardware and software failures.
• Develop/document/implement processes and technical solutions.
• Assess the impact of and consult on low, medium, and high risk production system changes.
• Conduct trend analysis with a focus on proactive identification of events/issues that threaten performance and a consistent timely resolution and documentation.
• Create and review technical system processes and recovery plans, and Make proactive suggestions for service improvements.

Confidential

Role : UNIX system Administrator

Environment:- AIX 5.2/5.3/6.1/7.1, SUSE Linux 10/11, IBM BladeCenter, JS20, JS21, JS22, HS20, HS21, HS22, P505, P520, P590, P690, P570, Nortel Switches, Cisco Switches, pseries, Windows 2000/2003/2008, HACMP 5.2/5.3 Clusters, VIO, LPAR, DLPAR, DRBD, Pacemaker, TSM, IBM HTTP server, Apache, Geronimo, Websphere 6.0, Informix, EMC, NetApp, Vormetric, DS3200 and Korn Shell scripts.

RESPONSIBILITIES

• Extensive experience in taking the Backups and checking the logs for the failures for backups using TSM and working on TSM clients and restarting the Scheduler when needed.
• Extensive knowledge of Netapp and iSCSI attached storage Netapp for IBM Bladecenter.
• Expertise in working with LVM, Disk mirroring, unmirroring, Disaster Recovery and backup and restore for AIX 4.3/5.2/5.3/6.1/7.1
• Expertise in setup and configuration of TCP/IP network for the public network and backup network using mktcpip and chinet.
• Expertise in writing the scripts korn shell for doing the change control and automation to implement changes on all the servers and support on AIX 4.3/5.2/5.3/6.1/7.1.
• Perform Nightly backups on UNIX and Windows server using TSM V5.3/5.4.
• Expertise in Configuring the Nortel Zigmo and Elmo Switches for IBM BladeCenter.
• Expertise in Configuring VLANs on IBM Bladecenter, Nortel Switches, CISCO switches.
• Provided 24X7 supports on pager rotation and third shift basis remotely for all the stores.
• Expertise in doing the FSCK on the corrupted file systems in AIX 4.3/5.2/5.3/6.1/7.1.
• Expertise in installing new software on AIX 4.3/5.2/5.3/6.1/7.1 Boxes, Upgrading the Maintenance Levels, Doing the Change Controls and Migration from HP-UX to AIX 5.3 for Wal-Mart Pharmacy Servers from NCR boxes to IBM Blade and from RS/6000 to pSeries IBM blade.
• Expertise in installing, configuring and troubleshooting Suse Linux Sles 10 and Windows 2003/2008 on HS20, HS21 and HS22 servers in IBM Bladecenter.
• Expertise in installing, configuring and troubleshooting AIX 5.1/5.2/5.3/6.1/7.1 on Power-5, Power-6 servers and IBM Bladecenter.
• Expertise working in a huge environment that consists of almost 9500 Servers including RS/6000, P505, P520, P690, P570 and IBM BladeCenter.
• Work as Second Level UNIX System Administrator to support IBM pSeries BladeCenter and Power-5 and Power-6 servers used in Wal-mart stores throughout the world.
• Build VIOS and VIO LPAR's on p-Series 590, 570, 550 and 505 servers using HMC V6 later upgraded the HMC V6 to HMC V7 GUI .
• Decommissioned old frames and migrated servers on to each LPAR in high end p7 frames as part of consolidation strategy.
• Maintain the NIS user administration account
• Working on the backup and restoration of data by using SNAP.
• Monitor systems CPU, memory and disk utilization.
• Analysis the NMON data and observe the spikes of the system performances issues.
• Worked on the HACMP 5.4 version, failover the RG to the next node, start and stop the cluster services and HACMP
• User Management - Creating, maintaining, and removing users and groups. Security settings on user accounts and groups.
• Trouble shooting HACMP related issues, going through the log files Taking HACMP snap using snap utility and using snaps to recover HACMP topology in case of any disaster
• Configuring system dump devices, taking system dump, estimating system dump, uploading the system vmcore files to IBM ftp site to get it analysed by IBM engineers.
• Defining shared volume groups and working on different operations such as creating shared file systems, increase or decrease file system sizes and adding disks to the volume groups.
• Troubleshooting from system performance related issues.
• Handling the server hardware related issues with IBM CE coordinate with the IBM CE for hardware replacement.
• Installation of emergency fixes and supporting fixes for the applications.
• Using alternate disk installation method when upgrading or installing TL or ML on AIX Operating system.
• Network configuration of TCP/IP Ether Channel Ling Aggregation , online troubleshooting for network and system, ensuring connectivity between servers
• Performed the HMC up gradation to 7.7.2 version.
• Responsible for installing configuring, migrating and maintenance of GPFS version 2.1 and 3.3
• Managed and used NIM server to install, migrate and creating backups
• Built VIO servers and VIO clients on POWER6, p5 P520, P550, P570 and p595s.
• Installing and configuring LPARs, and VIO Server on pSeries servers through HMC.
• Setup HACMP clusters for high availability of servers and to face any unexpected outages.
• Troubleshooting BOS installations, Boot Failures, monitoring systems performance using Nagios, sar, vmstat, netstat, iostat, perfpmr and systems tuning.
• Included upgrading NIM master, alternate NIM master, creating the SPOT, lppsource mksysb NIM clients.
• Installed Veritas clustering on WebSphere server.

Confidential

Role : UNIX/DBA system Administrator

Environment: Sun Solaris7/8, Red hat Enterprise Linux, SunFire 4500/V880/480/E420R/E450/E250, IBM, Sun StorEdge L280, Sun StorEdge A1000, A5000, JBODs Compaq servers, Solstice Disk Suite, Oracle 7.x/8.x

Responsibilities

• Support for more than 150 users of various departments including Developers, Designers, Sales, Production and Accounts. Troubleshooting hardware and software problems for end-users and providing technical support for their installations.
• Installed application software including Oracle, DB2 and Websphere on Sun Solaris 7/8, Linux Servers
• Experienced in authoring, coordinating, directing, and executing various operating system and network performance benchmarks.
• Performed user tasks including submitting and managing parallel, serial and interactive jobs.
• Performed system administration of UNIX servers by using Operating Systems of Solaris 7/8
• Installation of patches and other software packages
• Configuration of Hardware and Software RAID on Digital Sun Servers
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects, Creating Profiles, Users, Roles and maintaining system security.
• Configuration and maintenance of NIS, NFS, DHCP and DNS Servers on Solaris.
• Administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management, dumb terminals and devices carried out.
• Installation and configuration of Oracle 7.x/8.x
• Performed the administration of the Domain Name Server and configuration of the Database Files.
• Troubleshooting Backup and Restore problems and performed Day-to-Day trouble shooting for the end users on Solaris based applications.
• Performed OS upgrades and Patch loading as and when required.
• Backing up and restoring files across the network
• Responsible for Installation of various software components on several servers.
• Installed and Configured Sendmail Utility on Sun UNIX Servers.
• Administering NFS Mounts.