SUMMARY

• Over 6+ years of experience in technical support and maintenance of networks.
• Experienced in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX, Linux (RedHat & SuSE),Windows 2003 server
• Expertise in Administration of AIX 4.3 ,5.1 ,5.2 ,5.3, 6.1 & 7.1
• Installation/Administration of AIX on RISC servers running on a LAN with full setup of network services and protocols, ensuring the proper implementation of the TCP/IP Stack, and ARP/RARP routing, and network functionality
• Configured and Administered HACMP 4.5,5.1,5.2
• Migrated from HACMP 4.5 to 5.1 and from HACMP 5.1 to 5.2
• Configuring and administration of weekly mksysb backup on AIX servers.
• Installation of patches, Security fixes, packages on AIX, Linux and Windows NT/2000 Servers
• Installation ,Configuration and administration of LPAR’s.
• Installation, administration of VIO Server and VIO client Lpar’s.
• Configuration and administration of NFS. Handling automount.
• Configuring and administration of NFS server and NFS client.
• Configuration and administration of Fiber card Adapter’s and handling AIX part of SAN (SAN arrays HITACHI,IBM SHARK).
• Installed and Configured Web Sphere Application Servers on AIX.
• Installed and configured IBM Web Sphere Application Server 3.5/4.0/5.0 on AIX and Linux.
• Performed NT and UNIX Network System Administration, including adding NT and NIS domains, creating new users and groups with multi-levels of security, creating assign file attributes & permissions, defining network protocols, insuring TCP/IP and router connectivity
• Installed and Configured DB2 on AIX OS Server
• Adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments
• Migrating AIX OS from AIX 4.3 to 5.1,5.2and 5.3 on p-770, p-590, p-520, p-550, p-610 ,RS/6000 Servers
• Administering and troubleshooting of AIX HACMP Clusters
• Installation, configuration and administration of IBM Web Sphere Application Server V4.0, on AIX along with DB2 UDB & IBM HTTP server with SSL for secure communication & providing technical support to users
• Experienced and familiar with tools like SMITTY
• Installation and support of Apache Web Server, IBM HTTP Web Server, Oracle 8i/9i, SQL Server on Windows and UNIX
• Experienced in implementing the workload Management (WLM) using cloning and clustering
• Experienced in writing scripts such as Korn Shell (ksh) and Perl
• Experienced in DNS, NIS, NFS, LDAP, sendmail, ftp, remote access, security management, and system troubleshooting skills
• Excellent client relation skills and the drive to complete tasks effectively and efficiently where customer services and technical skills are demanded as well as the ability to communicate effectively with all levels of management and the client community

TECHNICAL SKILLS

Operating Systems:

IBM AIX 5L,5.1,5.2,5.3,6.1 Linux (Redhat, SUSE), Windows 2000/NT4.0, Sun Solaris. MAC8.1/9/10 and OS2.

Hardware:

IBM RS/6000, pSeries 520,550,570,575,590,595,770, SUN Enterprise 450

Web/Application Servers:

Web Sphere Application Server 3.5/4.0, Netscape/iPlanet Server, MQSeries,WebLogic Server, IBM HTTP Server, HTML, DHTML, XML, Java Script, JSP, Servlets, EJB

Networking:

TCP/IP, NIS, NFS, DNS, DHCP, Cisco MDS 9500 Series, Cisco Routers/Switches, LAN.

RDBMS:

IBM UDB2, Oracle 7.x/8.0/9i, MS-SQL Server 7.0/6.5 and MS-Access 97/95

Programming Languages:

C, C++, Java, Servlets, Jsp, EJB,VB, JavaScript, HTML, Perl and Shell programming.

Applications:

HACMP, Samba, Tivoli (TSM), Veritas NetBackup, Veritas Volume Manager

EXPERIENCE

Confidential,Michigan Feb’09 – Present
AIX Administrator/System Engineeer

Responsibilities:

• Responsible for maintaining and administering 600 productions IBM RS/6000 servers with AIX, RHEL and SuSe Linux.
• Giving the Level 2 support and assisting the team members in fixing the AIX software problems.
• Installation, Configuration and Administration of AIX 5.1, 5.3,6.1 & 7.1.
• Configuration and administration of HACMP 5.2/5.3 using 2/3 node cluster using Cascading, Rotating, Concurrent resource group.
• Installation of Redhat Linux High Availability SCADA Clusters with no single point of failure and geographic failover.
• Responsible for Administration of AIX Production, Integration and Development servers (Web/DB2/ Oracle Environment).

Creation of logical partitions using LPAR/DLPAR, micro partitioning and installation of AIX in p650/p670 (regatta) series model thru HMC and p5-p590, 595, p6-p590, p7-p750, 770 series of servers.

• Worked with multiple IBM AIX V5R3 TL8 LPAR’s running on IBM p570 servers as well as sun servers running Solaris 8.
• Assist customers with proper architecture of servers Unix to achieve best practices when attached to EMC storage.
• Applying the security fixes and Synchronize the VERITAS cluster.
• Placing the hardware call and follow up with IBM Hardware Support to fix hardware problems.
• Highlyeffective resource sharing (CPU, memory, I/O) and capabilities to minimize planned an unplanned downtime (error prediction, concurrent maintenance for hardware and OS, live migration of running SAP instances etc.),
• Implemented the combination of AIX an IBM Power Systems an ideal platform to support any kind of SAP Business applications.
• Logical Volume Manager (LVM), SSA Disk and RAID Management.
• Capacity planning of disk space and hardware resources required for production and developments.
• Created and implemented the Change Control for any change which may vary from installing patches, fixes, data migration or third party products installations etc.
• Installed software using Installp applying PTF’s, Microcodes, updating PMR’s, downloading Filesets, ODM, LVM and Disk Management.

Remote command execution across multiple nodes (or node groups) in the cluster.

• Advanced AIX V5R3 administration skills
• Installing and Configuring SQL Server 2005 and SQL Server 2008.
• Modification of Shell Scripts as per the Customer requirements.
• Configured EMC SAN fibre channel switches (McData, Brocade, and Cisco).
• Installed and configured EMC storage management software (Control Center, Powerpath, SRDF,SYMCLI, Timefinder) on various platforms (AIX, Sun, W2K, TRU64, and HP-UX).

Perform all duties relating to Unix System Administration, hardware & software technical support in Linux OS environment of mid range and high range server in a multi-platform heterogeneous UNIX environment.

• Setup and configured network TCP/IP on AIX including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on AIX Servers.
• Experience in REMEDY software and DMR system.

Confidential,Columbus, OH Aug‘07 – Feb ’09
AIX Administrator

Responsibilities:

• Installation and maintenance of AIX Systems.
• Administration of AIX Operating Systems.
• System & backup management using IBM ADSM Backup Server.
• IBM RS/6000 SP System Software Maintenance AIX System Dump Generation and sending System Dump to AIX System Support Center.
• Installation and configuration of VIO Server with AIX 5.3 on client LPAR’s on p550, p570, p590 and p595 models.
• Installation/administration of AIX, Linux, Solaris, and NT/2000 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.
• Daily tasks included dealing with AIX side of SAN. Like troubleshooting Fiber card adapter, replacing Fiber card adapters. Configuring LUN’s back.
• Perform daily Tivoli storage manager Administrator duties to ensure all information processed through systems and databases are efficient.
• Defined and setup network printers, and install client/server applications. Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS).
• Setup and administered training room / Mentored students during training
• AIX systems administration and Disk Management using SMIT.
• Logical Volume Management (LVM) of AIX.
• Predefined and Customized Volume Group management on AIX
• Installation and Administration of TIVOLI Service Desk.
• Disk Replacement Strategy on AIX.
• Performance Management & Tuning of AIX UNIX Kernel.
• Managing cron jobs, batch processing and job scheduling.
• Software installation and maintenance.
• Installation and administration of peripherals.
• Security, users and groups administration.
• Networking service, performance, and resource monitoring
• Daily backup and restore operations.
• Set-up and administration of DNS server.
• Completed a full migration of UNIX Server (Solaris), including all network services, applications from NT 4 to Windows 2000 platform.
• Installation/setup of client/server MMS Applications. Create RDBMS backend with Oracle8 Database and MS SQL Server for the University at telecommunication sites throughout the US.
• Review Design Documentation confirming to Software Requirements
• Systems administrator providing support for production and development systems. Environment consisted of multiple IBM RS/6000’s (SP, R-series) and X-Window terminals
• Used Perl v5 for systems tasks as well as C and Korn shell scripting.
• Design and implemented SMIT configuration screens.
• Other standard system administration tasks performed, such as system monitoring, performance usage, network support, and user support.

Confidential,IL Jan ‘06 – Aug’07
AIX Administrator

Responsibilities:

• Configured IBM RS 6000,550,520,570,590 machines for production, staging and test environments and also worked on Blade center JS20 and JS21
• Setup and configured network TCP/IP on AIX including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on AIX Servers
• Configured and administrated Lpar’s.
• Configured and administrated VIO server and Lpar clients.
• Administration Tasks included User administration, Performance, Sendmail . weekly mksysb
• Daily roles included dealing with LVM extensively. Strong hold of LVM.
• Migrated AIX 5.3 with HACMP 5.1 to HACMP 5.2 (online).
• Daily tasks included dealing with AIX side of SAN. Like troubleshooting Fiber SAN Switch and replacing Fiber card adapters. Configuring LUN’s back.
• Setup of full networking services and protocols on AIX, including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP, applications, and print servers to insure optimal networking, application, and printing functionality.
• Dealing with user id deletion with removing entries from CRONTAB.
• Performing Failovers in HACMP / cluster environment, monitoring servers
• Installed and configured AIX 5.1 ,5.2 ,5.3, 6.1 ,creating the root volume group application/backup volume groups, logical volumes, and filesystems (JFS) on RAID Level 5 with appropriate data stripping for protection, and for the optimal performance of the RS-6000 Servers within a High Availability system using DASD, DCE and DFS services.
• Ensured server data integrity by evaluating, implementing and managing software solutions like Tivoli Storage Manager.
• Configured backup/archive policies using Tivoli Storage Manager (TSM) Backup utility and mksysb images of root volume group to meet data archiving requirements and disaster recovery readiness.

Performed maintenance on AIX RS/6000 machines, such as Remote tape creation and hard drive replacements, adding print queues, and making and changing logical volumes and file systems.

• Designed and configured Ethernet VLAN’s with RS/6000 IBM Servers, Cisco Routers (2500/2600 series) and Cisco Switches (Catalyst 2912) utilizing RJ45 CAT5 cables for the internal LAN, and a T1 fiber uplink across a Cisco backbone for connection on the WAN.
• Configured Work Load Management (WLM) for IBM Websphere Application Server.
• Setup of full networking services and protocols on UNIX, including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP, applications, and print servers to insure optimal networking, application, and printing functionality.
• Backing up AIX servers using mksysb and ADSM/TSM using IBM 3494 automatic tape libraries and recovering the dedupe problems
• Installed and configured Sudo for users to access the root privileges.
• Installed application connectivity software to enable IBM print services. Configured and administered firewall rules, including the use of SNORT, NMAP to effectively monitor system files, port security, and network traffic activity coming through the firewall.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production.
• Developed Korn and Bash shell-scripts to automate routine activities.
• Migrated database applications from Windows 2000 Server to Linux server.
• Installing and setting up Oracle10g on AIX for the development team.
• Wrote shell scripts for automated installations, to extract logs.

Confidential,MI Nov ‘04 – Jan’06
System Engineer/Admin

Responsibilities:

• Responsible for installation and maintenance of 4.3 AIX servers.
• Administrator of IBM RS/6000 servers running AIX 4.3.3 for support of HRMS Environment on Oracle 7.3.x., DNS, FTP.
• Created users, manage user permissions, maintain User & File System quota.
• Installation of patches, packages on AIX.
• Adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.
• Administering and troubleshooting of AIX HACMP Cluster.
• Installation, Administration and configuration of LPAR’s with AIX 5L on p5 servers
• Installation, configuration and administration of IBM Web Sphere Application Server V4.0, on AIX along with DB2 UDB & IBM HTTP server with SSL for secure communication & providing technical support to users
• Data Warehousing and System Backup using tar, cpio for local systems and Veritas Net backup for enterprise wide backup and recovery and to centrally manage storage Networking through a single console.
• Installation/administration of AIX, Linux, Solaris, and NT/2000 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.
• Installation and administration of VIO Servers
• Setup network printers and installed client/server applications. Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS).
• Network management of TCP/IP networks, IP address management.
• Performing upgrades of OS and applications.
• Korn & C shell scripting, mainly for scheduling jobs (CRONTAB)
• Experience in analyzing logs, problem determination, and Recovery and restart.
• Worked closely with DBAs to install raid, disk areas for Oracle database instance installations, created Bourne shell database startup and shutdown scripts for UNIX servers. Wrote shell scripts for automated installations, to extract logs.

Confidential,India. Jan’03- June’04
System/ Network Administrator
Responsibilities:

• Worked as a Systems / Network Administrator configured and maintained Solaris 2.5 servers.
• Used the LVM extensively, Created/Modified/Deleted Volume Groups, Logical Volumes and Filesystems, Added/Removed physical disks; Mirrored Volume Groups and Logical Volumes.
• Setup of print queues and definition printing and plotting devices.
• Setup NIS in a multi-platform UNIX environment.
• Setup NFS between IBM, SUN, HP and SGI workstations and servers.
• Setup NFS between IBM RS/6000 server and NT server.
• Setup NIM master and slave clients.
• Configured TCP/IP for servers and workstations and setup of complete network.
• Wrote several korn shell scripts û perform background FTP, distribution of data to other servers, backup operations and management of large volumes of CAD data.
• Setup Jumpstart server for auto installations of servers.
• Involved in user, package and patch management and administration.
• Support for all the internal Windows nodes
• Installation and maintenance of the Internal DNS server.
• Firewall configuration for packet filtering firewall.
• Network administration and Network monitoring.
• Development shell scripts using Perl, awk for automation of Systems administrative tasks.
• Implemented RAID techniques (RAID 0+1, RAID 5) by using Veritas Volume Manager and Online Disk Suite (ODS).
• Implemented Crontabs, Shell Scripts for automatic back -up.