TECHNICAL SKILLS

Operating Systems: IBM AIX 4.3,5, 1, 5.2,5, 3, 6.1 and AIX 7.1Linux (Redhat 5)

Hardware: IBM RS/6000, P Series 570 590 595,630,650,670,695,770 and 780's.

Web/Application Servers: Web Logic Server, iPlanet Server, MQSeries, IBM HTTP Server, samba, apache, dhcp, dns, ftp, mailserver, nfs, nis, squid.

Networking: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, LAN.

Databases: IBM UDB2, Oracle 7.x/8.0/9i, 10g.

Programming Languages: C, C++, HTML, Korn Shell programming.

Technologies: HACMP, IBM Virtualization, N - Port Virtualization (NPIV), Tivoli (TSM), EMC (DMX and VMAX), IBM Storage DS4000, DS4500, DS4800,and RAID levels.

PROFESSIONAL EXPERIENCE

AIX Administrator

Confidential

Responsibilities:

• Production Environment Support
• Performance Test Case Execution.
• Maintenance and leading the team of 8 System Admins.
• Strong Experience in supporting IBM - AIX.Also supported RHEL server environments.
• Experienced in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX.
• Knowledge in implementing NPIV and mapping storage directly to the VIO clients using the client WWPN's.
• Worked on pSeries p550, p570, p590, p595, p695, p770, p780 & IBM Blades.
• Extensive experience in installing, configuring, maintaining, implementation, and support on IBM AIX 4.3.x/5.1/5.2,5.3/6.1 RHEL 5, NIM, NFS, TSM, Oracle RAC, and ASM.
• Upgraded Aix servers from 5.3 TL 9 to 5.3 TL12 and also upgraded from Aix 6.1 TL 6 Sp2 to Aic 6.1 TL6 Sp4 Using Alt Clone
• Experience in Working on AIX LVM.
• Migrated AIX servers from 5.1 to 5.2,5.2 to 5.3 and from 5.3 to 6.1
• IBM Power VM experience including setup and management of VIO Servers and partitions
• Experience on AIX administration tasks on EMC disk subsystem (DMX and VMAX disks )with powerpath and IBM subsystems (DS4800) with MPIO.
• Configured, Administered, Maintained 2 and 4 node HACMP Clusters with versions 4.5, 5.1, 5.2, 5.3, 5.4, Power HA mirror (6.1).
• Upgaded Hacmp from 5.2 to 5.4 using Cluster snap shot.
• Did Failover and Falback of HACMP Resource Group.
• Added more resources to the HACMP Resource Group Configuration.
• Familiar with Setup of disk Heart bit for HACMP Cluster.
• Built a 2 Node Hacmp Cluster with HACMP 5.3
• Configured shared, Concurrent Vgs, Resource Groups, Application servers on HACMP Cluster.
• Migrated Vio servers from 2.1 to 2.2.
• Experience in upgrade system firmware, Ethernet and Fiber card firmware.
• Experience in applying patches to the AIX servers at various TL and Service pack Levels.
• Experience in NIM installation, setting up NIM servers. Defined Nim clients on Nim master server, and defined resources.
• Performed BOS Installations from NIM server using Lppsource and Spot, Migrations, patch Installations from NIM server .taking mksysb's of the servers from NIM
• Performed BOS installation from Mksysb and CD's and also restoring systems using Mksysb. worked in setting the Crontab for non root users in both AIX and SUSE
• Familiar with taking mksysb and Tsm restore and archive utility.
• Familiar with setting root and user Crontabs on Aix
• Upgraded MPIO ODM To accomadate DMX to VMAX Migration
• Performed powerpath upgrade
• Worked on DMX to VMAX Migration.
• Worked with IBM Advance support on issues which required high level insight.
• Familiar with HMC and SDMC and upgrades
• Migrated HMC's to version's 6 and 7
• Built, Administered, Configured, Monitored and Maintained the NIM Servers.
• Installed and configured Sudo for users to access the root privileges.
• Installed and upgraded different versions of ssh/ssl.
• Installed and upgraded GNU Compiler, Splunk and Guardium.
• Unlocking Root user and Padmin user, using Aix And VIO's Bootable CD's respectively.
• Installing, configuring and maintenance of DNS, Apache Web Server, DHCP server, NIS and NFS servers and Clients.
• Installing and configuring of Samba, squid, FTP Server, SMTP Server, RAID and LVM, send mail Server, and Network based Printers.
• Installation of computers both client and servers, Modems, Printers, Scanners and other computer Peripherals, antivirus software's and other 3rd party application.
• Monitor system performance, performs system tuning, and proactively asses systems infrastructure for improvement.
• VMware Server and VMware Workstation installation and implementation.
• Experience in Installing RHEL5 using kickstart servers.
• Installing, Configure and maintain Windows and Linux servers.
• Knowledge of Configuring IPTABLES.
• Installing YUM Server & Client, Installing (Kick Start Installation) and configuring of Linux (Red Hat EL 5.0).
• Trouble shooting OS, hardware and network related problems, Adding and configuring disks and creating new file systems, Installing software applications and Packages, Managing Users and Group accounts quotas.

IBM AIX Administrator

Confidential

Responsibilities:

• worked on IBM RS6000 and pSeries p550, p570.
• Performed TL upgrades in the environment and installed ifixes when required.
• Worked with different application teams to resolve the performance issues to improve the performance.
• Weekly health check for All the servers in the Environment.
• Working on daily Incidents and requests on production and test Environments.
• Worked on Disaster Recovery Procedures in the Environment.
• Worked on Unix changes on production servers.
• Performed Firmware Level Upgrades on system, Ethernet and Fibercard on Aix Servers.
• Solved ssh, telnet and Many other Network connectivity issues.
• Worked on setting up Passwordless connections for batch users.
• Worked on removing multiple users present on all the servers in the environment using korn shell scripting.
• Worked on Server remediations to comply with GSD331 Compliance.
• Remediated the servers by disabling the then active but unsecured daemons and services like ftp, telnet, nfs, rlogin, rexec, snmp, finger, rsh, tftp etc.
• Remediated all the findings where possible, raised by Independent Auditors across environment
• Co - ordinated with the application teams for remediation of unsecured services
• Implemented Crontabs for Root and normal users.
• Configuration and administration of NFS Version 3 and 4.
• Taking backups using tar, Bzip2, gzip, zip.
• Hardware troubleshooting, Maintenance and replacement of failed hardware and configuration of new hardware
• Troubleshoot hardware issues, cabling issues.
• Configuration and administration of Fiber card Adapter's and handling AIX part of SAN.
• Created backup and restored backups for the AIX servers.
• Analyzing nmon data for servers with slow performance.
• Upgraded servers using Alt clone Procedure.
• Add memory to a particular server.
• Perform failover / failback on HACMP nodes during test / maintenances
• Add COD keys on a P5 Machines.
• Configuration and administration of Fiber card Adapter's and handling AIX part of SAN.
• Familiar with AIX user Administration, File attributes Permissios, And Password less connectivity setup between servers using Public/Private Keys.
• Implemeting and troubleshooting the application servers set up on HACMP Clusters.
• Installation and Upgrade of Apache Web Server Experienced in writing scripts in Korn Shell (ksh)
• Experienced in DNS, NIS, NFS, sendmail, 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

AIX Administrator

Confidential - San Jose, CA

Responsibilities:

• Responsible for AIX Team With more than 800 servers.
• Provided 24x7 supports on shift rotation basis.
• Configured IBM p5, B80, RS 6000, for production, staging and test environments.
• Installation and configuration of LPAR's with AIX 5.3 on p5 servers.
• Rebuilding infrastructure of the environment.
• Extensively used LVM, created VGs, LVs, and disk mirroring.
• Responsible for Installing Security fixes and APAR's in Servers.
• Installation and upgrade of OpenSSH 4.3p1 on AIX 5.2 and 5.3, OpenSSH 4.1p1 on AIX 5.1 servers.
• Installation and configuration of NIM master server and clients.
• Creating lppsource and SPOT for client on NIM server.
• Installing OS on NIM clients using NIM Server.
• Worked with DB2 team to manage filesystem, lvm and upgrade db2level.
• 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.
• 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.
• 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.
• Clustered multiple RS/6000 machines on AIX 5.1/5.2 using HACMP, configured HACMP cluster to keep applications running.
• Configured cascading, mutual takeover and rotating modes of operation of the HACMP and HACMP/ES Products.
• Performing Failovers in HACMP / cluster environment, monitoring servers.
• Installed and configured AIX 4.3, 5.0, 5.1 on p5, B80, RS 6000, 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 Servers within a High Availability system using DASDDCE and DFS services.
• Installed and configured DCE and DFS services.
• 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
• 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 serverMySQL 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 Oracle9i on Linux for the development team.
• Wrote shell scripts for automated installations, to extract logs.