SUMMARY

• A seasoned Unix/Linux System Administrator with more than 11 years of experience in Administration, Engineering and Development of Information Systems
• As a LINUX/UNIX systems administration and application support. Proficient in Redhat Enterprise Linux Also, worked and supported on sun Solaris 10/11 server environments.
• Responsible for installation, configuration, upgrading, patching and administration of RHEL 7/6/5 Servers. and IBM AIX 6.1/7.1/7.2 (Dynamic LPARs, Micro - Partitions and Virtualization) operating environments.
• Responsible for Installation, Management of high load Reverse proxy servers using Pound. Management of Static and Dynamic configuration. Creation of Pound services, and redirection of requests to its backends. Configuration of URL Redirections.
• Responsible for Configuration Management using Puppet.
• Experienced in configuring Kickstart to initiate installation of Red Hat Enterprise Linux using cobbler.
• Experience with IBM Power VM and HMC for the systems provisioning and the frame management.
• Strong hands on experience in provisioning systems using PowerVC.
• Possesses good experience in Cloud Technologies.
• Implemented various IBM power tools in the environment.
• Expertise with various IBM pSeries servers (p570, 590, 750, 770, 795), RS/6000 platforms and have extensive experience in configuration, installation and administration of AIX including
• Configuration, and maintenance of HACMP v4.5 and TSM on AIX v5.x, v6.x, v7.x
• Migration of HACMP v4.4 to HACMP v4.5.
• Administered tasks like taking backups, expanding file systems disk space, creating NFS mounts.
• Involved in handling Tickets, Monitoring, Troubleshooting and maintenance for Day to day Activities.
• Great communication and interpersonal skills, ability to learn, implement and explain new tools and technologies quickly and ability to work within stipulated timelines.
• Highly motivated and able to work with low supervision independently as well as in a team environment. Have practical and terrific trouble shooting skills. Ansible and has worked on integrating Ansible
• Working experience with Chef to perform the deployments of packages in the Unix environment.
• Experience with RedHat Linux, configuration management using Ansible or Puppet.
• Built and deployed various Ansible playbooks and modules in the Production and pre-production environments.
• Good hands on experience in managing GPFS cluster.
• Good Experience on Continuous integration, automated deployment and management using Jenkins, Ansible, Puppet Docker, or comparable tools.
• Experienced in configuring Kickstart to initiate installation of Red Hat Enterprise Linux.
• Maintained/Administrated the current storage environments (SAN, NAS, DAS, etc.) as well as make recommendation for optimal solutions to support business initiatives. iSCSI SAN connectivity between EMC CX-300 storage to RHEL server and Multipathing.
• Management of Synalogy storages and NFS mounts from Synalogy storages to Censhare servers.
• Experience of adding iSCSI LUNs from storage to Oracle Linux servers. Configuration of Multipathd.
• Worked extensively on Logical Volume Manager (LVM).
• Worked extensively on Ext3, Ext4, ZFS File systems. RAID Concepts.
• Expertise in Linux Enterprise using HP Blade Servers.
• Performance Monitoring, resolving network issues & Tuning the system using tools such as top, iostat, iotop, vmstat, netstat, nfsstat, truss, sar, ndd, ithtool, Dtrace, Strace. Ethernet NIC bonding.
• Experience in writing Shell scripts using bash for process automation of databases, applications, backup and scheduling.
• Experience in writing Shell scripts using bash for process automation of databases, applications, backup and scheduling.
• Used VERITAS Netbackup tool for backup and recovery.
• Expert in setting up SSH, SCP, SFTP between UNIX hosts.
• Experienced in DNS, NFS, FTP, Samba Server, LDAP, remote access, security management, and system troubleshooting skills.
• Manage high load servers and troubleshoot/Fix the issues and identification of the root cause.
• Responsible for DNS and Configured DNS Servers, troubleshooting system and DNS issues.
• Experience working on Apache, Nginx web servers.
• Experience in writing Shell scripts using bash for process automation of databases, applications, backup and scheduling.
• Experience in installing, maintaining, and troubleshooting Linux/Unix, Tomcat Apache application & web servers.
• Experienced in implementing the various security features in the UNIX/AIX environment using LDAP like configuring user authentication.
• Experience in Installing the GPFS (Golden Gate Rule) instead of NPIV in the environment.
• Experience in installation, configuration, tuning, optimization, security, backup recovery, and upgrades of IBM AIX, Red Hat Linux.
• Performed HACMP to cluster multiple IBM RS/6000 nodes work to provide a highly available application.
• Proficient in archiving and backups. Using tar, pax, cpio, dd, restore and backup commands, mksysb for root volume group backup and savevg for user created volume groups backup.
• Extensive Experience in AIX System Dump Generation and sending System Dump to AIX System Support Center.
• Extensive use of Resolved Application Startup problems, PATH problems, Name conflicts, TCP/IP and Networking Problems in AIX.
• Installation/administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, auto mounts, sendmail, and print servers as per the client’s requirement.
• Experienced in Tivoli Storage Management, Managing LVM and File systems, SRC and Paging space management, restore and availability, Monitoring System / Network Performance and Send mail administration.
• Experience in DNS, NIS, NFS, LDAP, send mail, ftp, remote access, security management, and system troubleshooting skills.
• Provided production support in an on-call rotation in a 24x7 environment.

TECHNICAL SKILLS

Operating Systems: IBM AIX (6.1, 7.1,7.2), Windows 2000/NT4.0, Linux (RedHat Enterprise Linux 7/6/5, CentOS 7/6/5): Web Servers, Mail Servers and DNS Server etc. Solaris 11,10: Managing Zones with ZFS FS

Hardware: IBM RS/6000, IBM p-Series (p550, 570, 590, 650, 670, 680, 690, 750, 770, 795) IBM AS/400, IBM PCs, SCSI and IDE architectures, SUN E-3000, E-4000, HP 9000/750BM, Sun fire servers - V1280/V2800 and V3800, Sun Microsystems SPARC&ULTRA servers/workstations (U5, U10, U20, E450, E3500, E6000, E10K), backup DLT tape drives, Compaq servers.

Network: TCP/IP, DNS, DHCP, and Cisco Routers/Switches, LA, OSI Layer Concepts, TCP/IP Layer Concepts, Iptables.

RDBMS: Oracle 8i/9i, DB2, MS SQL SERVER 7.0/2000.

Applications: DCE/DFS, AFS, Tivoli Storage Manager, IIS 5.0/4.0,FTP, MS Office 2000, MS Proxy Server, Norton Utilities.

Web Servers: IBM HTTP Server1.3/1.2, IPlanet Web Server 5.1/6.0, Netscape Enterprise Server, IIS 4.0/5.0, MQ Series, Apache.

PROFESSIONAL EXPERIENCE

Confidential, Birmingham, Al

AIX/Unix Administrator

Responsibilities:

• Applying the security fixes to remediate the vulnerabilities in the Unix Environment.
• Monitored the ticketing queue and address the incidents.
• Placing the hardware call and follow up with IBM Hardware Support to fix hardware problems.
• Managed the effective resource sharing servers (CPU, memory, I/O) and capabilities to minimize planned an unplanned downtime (error prediction, concurrent maintenance for hardware and OS.
• Performed the AIX OS migration from 7.1 to 7.2 and made sure that the applications are functioning as expected after the upgrade.
• Used Chef tool to manage the nodes in the environment.
• Launched AWS EC2 instances as per the Application requirements.
• 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.
• Installed various monitoring agents- Zabbix, Nagios in the Unix Environment.
• Worked closely with the security team to address the vulnerabilities in the Unix Environment.
• Performed the user administration.
• Performed the Firmware update on the PSeries platform.
• Performed VIOS operations, mapping the adapters, assigning the disks and management of shared resources.
• Responsible for determining hardware and compatibility requirements for installation of TSM client software.
• Patch the Unix servers in the environment.
• Responsible for Administration of AIX Production, Integration and Development servers (Web/DB2/ Oracle Environment).
• Manage the IBM Power machines via HMC Console.

Confidential, Proveidence Rl

AIX/Linux Administrator

Responsibilities:

• Installation, Configuration and Administration of Linux/AIX 5.3, 6.1 & 7.1.
• Performed LPAR OS maintenance with NIM.
• Migrated LPARs from AIX 5.3 to AIX 6.1.
• Assisted in setup of live partition mobility on Power-6 systems.
• Used VMWare to create and maintain Linux (Suse and Red Hat) environment.
• Documented printer setup procedures.
• Updated HMC OS.
• Updated firmware on Power-5, and Power-6 series boxes.
• Assisted in maintenance of HACMP clusters on AIX.
• 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 series of servers
• Created users, manage user permissions, maintain User & File System quota.
• 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.
• Performed upgrades of OS.
• Network management of TCP/IP networks, IP address management.
• Logical Volume Manager (LVM), SSA Disk and RAID Management.
• Decommission of old hardware.
• Installations of monitoring agents on server.
• Installation and Configuration Solaris servers.
• Maintaining and Monitoring Solaris serves.
• Updating Solaris servers

Confidential, Columbus, OH

UNIX Engineer

Responsibilities:

• Performed AIX administration supporting pSeries servers (570, 590, 620, 650, 670, 680, 690, 750, and 770).
• Performed VIOS operations, mapping the adapters, assigning the disks and management of shared resources.
• Embedded system, network and object-oriented programming in C/C++ and various compiler installations.
• Performed user account management, data backups, and user’s logon support.
• Monitored trouble ticket queue to attend user and system calls.
• Updated data in inventory management package for software and hardware products.
• AIX system optimization over Oracle10/11 applications and utilities.
• Worked with DBAs on installation of RDBMS database, backups and restoration and log generation. Configured and maintained TSM Clients on TSM 5/4 servers running AIX 6.0/1 and IBM HTTP Server.
• Giving the Level 2 support and assisting the team members in fixing the AIX software problems.
• Installation, Configuration and Administration of AIX 5.3, 6.1 & 7.1.
• Installed patches and health check.
• Administration of HACMP 6.1/7.1 using 2/3 node cluster using Cascading, Rotating, and Concurrent resource group.
• Implemented the various security features in the UNIX/AIX environment using LDAP like configuring user authentication, Keonizing.
• Tivoli tape management, troubleshooting tape libraries and drive error, checking tape consistency.
• Responsible for determining hardware and compatibility requirements for installation of TSM client software.
• Installation and Configuration Solaris servers.
• Maintaining and Monitoring Solaris serves.
• Provided 24x7 support on shift rotation basis.

Confidential, McGraw Park, IL

UNIX/AIX Administrator

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.
• Configuration and administration of HACMP 5.2/5.3 using 2/3 node cluster using Cascading, Rotating, and 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, micropartioning and installation of AIX in p650/p670 (regatta) series model thru HMC and p5-p590, 595 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.
• Applying the security fixes and synchronizing the VERITAS cluster.
• Placing the hardware call and follow up with IBM Hardware Support to fix hardware problems.
• Highly effective 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 Install applying PTF’s, Microcode’s, updating PMR’s, downloading File sets, ODM, LVM and Disk Management.
• Remote command execution across multiple nodes (or node groups) in the cluster.
• Advanced AIX V5R3 administration skills
• Configuring SQL Server 2005 and SQL Server 2008.
• Modification of Shell Scripts as per the Customer requirements.
• Configured EMC SAN fiber channel switches (McData, Brocade, and Cisco).
• Installed and configured EMC storage management software (Control Center, Power path, SRDF, SYMCLI, and Time finder) 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.