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Unix/ Aix System Administrator Resume

4.00 Rating

IL

EXECUTIVE SUMMARY

  • 8 years of experience in technical support and maintenance of UNIX Systems.
  • Experience in installing, configuring, managing, maintaining and developing AIX Systems, Linux (Red Hat), Windows 2003 server, Solaris.
  • Experience in Administration of AIX 4.3, 5.1, 5.2, 5.3, 6.1.
  • Experience in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX.
  • Expertise in creating scripts with Korn, Perl which would help in automation and simplification of jobs.
  • Experience in AIX LPAR Virtualization and configuration work using HMC/VIOS (vscsi and NPIV)
  • Installation and configuration of NIM master server and clients.
  • Experience in working with Live Partition Mobility to perform migration from one frame to another.
  • Hardware Migrations from P5, P6 to P7 hardware.
  • OS Migrations from AIX 4.3.3 to 5.1, 5.1, 5.2 to 5.3 and 5.3 to 6.1 on pSeries servers.
  • Configuration of HACMP 4.5, 5.1, 5.2, 5.3 as well as performing failover and failback of HACMP Clusters on a regular basis as per the application requirement.
  • Migration of HACMP from version 4.5 to 5.1.
  • Experienced in Tivoli Storage Management, creating TSM Servers and Clients, performing backups.
  • Experience in building and configuring VIO servers and clients with shared storage and Networking on P5, P6 and P7 hardware.
  • Experience in working with Shared Ethernet Adapter, Link Aggregation and NPIV concepts associated with VIO server technology.
  • Installed DB2, Web Sphere Application Servers on Linux and AIX.
  • Provided support to DB2 DBA and SAP application team.
  • Experience with LVM, NIM, User & System Resource Management, Job Scheduling and Paging Space Management.
  • Experience in creating CRON jobs to automate various system administration tasks using Crontab Utility.
  • Experienced in Installation, configuration and maintenance of EMC powerpath for load balancing and MPIO for redundancy in data paths.
  • Experience in Installing, Configuring and Trouble - Shooting Web Servers like IBM HTTP Web Server, Apache Web Server, WebSphere Application Servers, Samba Server on AIX. Everyday administration.
  • Experience in Migrations and Decommissioning of the systems.
  • Managing cron jobs, batch processing and job scheduling.
  • Performed System Backup local systems and Veritas Net backup for enterprise wide backup and recovery and to centrally manage storage resources through a single console.
  • Efficiency in installing, configuring and implementing the RAID Technologies using various tools like Veritas volume manager, Solaris volume manager. Creating VERITAS file systems, UFS, ZFS, etc.
  • Experienced in increasing the file system, create Mirroring, striping and parity using Veritas volume manager (VxVM).
  • Experienced and familiar with tools like SMIT, configured public network with mktcpip and backup network with smitty chinet
  • Installing new software on AIX 4.3/5.2/5.3/6.1 Boxes, Upgrading the Maintenance Levels as per application requirement
  • Experience working in NFS/NAS, Storage Area Networks (SAN), SSA disk storage environment.
  • Good experience on Routers and Switches (Brocade silkworm). Subnetting, vlan, TCP/IP, vpn, firewalls, OSI model.
  • Experienced in monitoring system performance and check the status of the system using utilities such as TOPAS, GLANCE, NMON, VMSTAT, IOSTAT, etc.
  • Experienced in configuring SSH, DNS, NIS, NFS, LDAP, sendmail, ftp.
  • Excellent presentation, analytical, documentation and interpersonal communication skills.
  • Worked 24X7 and on-call in production support and trouble shooting on AIX pSeries servers.

TECHNICAL EXPERTISE

Operating Systems: IBM AIX (4.3, 5.1, 5.2, 5.3,6.1) RHEL 5.5/5.6, HP-UX 11i, Windows 2000/NT4.0, Sun Solaris7/8.x/10

Hardware: IBM RS/6000, p5 520,560,561,570,590,595 p6 570,590 IBM Blade Server JS20,JS21 SUN E-3000/4000, HP 9000/750

Storage Area: Fiber Channel SAN, SCSI, SSA.

Tools: LVM, NIM, HMC, TSM and Veritas Net Backups. VERITAS Volume Manager 3.x/4.x/5.x, VERITAS File System 3.x/4.x/5.x, Solaris Volume Manager / RAID, Solstice Disk suite 4.x

RDBMS: DB2, Oracle 8.0, 9i, 10g

Programming Languages:: C++, Java, Java Servlets, EJB, VB, JavaScript, HTML, XHTML, DHTML Perl and Shell programming.

PROFESSIONAL EXPERIENCE

Confidential, IL

UNIX/ AIX System Administrator

Responsibilities:

  • Installed and configured IBM pseries p7 (p710, p740) for production, staging and test environments.
  • Created, installed and Configured VIO server and client Lpars on IBM P740.
  • Set up NIM servers, created LppSource, SPOT and mksysb resource on NIM, defined NIM clients and pushed OS on these new NIM clients using Lpar Netboot.
  • Performed OS migration from AIX 5.3 to AIX 6.1.
  • Set up Shared Ethernet Adapter (SEA) and link aggregation on VIO.
  • Configured LUNS for VIO clients and stand alone LPARS.
  • Performed server migration using Live Partition Mobility.
  • Installation and configuration of LPAR’s with AIX 6.1 on p7 servers.
  • Upgraded VIO from 1.5 to 2.2 and installed fix packs.
  • Performed server migration and Decommission.
  • Experience in creating and installing standalone LPAR and VIO client LPAR using HMC.
  • Upgraded AIX 5.3 servers to TL 11.
  • Configured Shared Processor Pools.
  • Extensive working experience on LVM. Creating VG, LV and FS.
  • Performed mksysb backup and restore using NIM master.
  • Built and configured RHEL 5.5Linuxservers using Kick Start server.
  • Performed REAR backup and restore for Linux servers.
  • Configured the GPFS clusters to keep the high availability applications running on RHEL 5.5 servers.
  • Supported Oracle DBA with RAC node configuration and installing Oracle Binaries.
  • Performed NIC teaming Reconfiguration.
  • Upgraded Networker/NMC Application from 7.4.3 to 7.6.2.
  • Responsible for performance monitoring using AIX utilities and nmon.
  • Provided on-call support as required.

Confidential, MN

UNIX/ AIX System Administrator

Responsibilities:

  • Performed administration tasks on Prod, QA, Dev, Test servers running AIX 5.3 and AIX 6.1 on P-series frames P570, P590, P595, P750, P770.
  • Worked on Data Center Migrations of AIX servers from Power5, power6 to power7 frames.
  • Created, installed and Configured VIO server and client Lpars on IBM P770.
  • Migrated servers form AIX 5.3 to AIX 6.1.
  • Worked on AIX LPAR Virtualization and configuration using HMC/VIOS (vscsi and NPIV).
  • Configured Shared Ethernet Redundancy between the VIO servers.
  • Upgraded TL levels on servers.
  • Upgraded VIO from 1.5 to 2.1 and installed fix packs.
  • Performed troubleshooting with LVM.
  • Performed migrations of LPARS between frames virtualizing internal, direct SAN disks.
  • Participated in root-cause analysis of recurring issues, system backup, and security setup
  • Performed user administration and trouble shooting.
  • Created CRON jobs to automate various system administration tasks using Crontab Utility.
  • Performed system health checks regularly.
  • Worked on SAN migrations.
  • Configured MPIO on VIO server and clients.
  • Involved in Rapid Recovery testing (Distributed SAN replication).
  • Performed Network configurations and troubleshooting.
  • Created scripts for automated installations of various softwares.
  • Maintain Web servers, file servers, firewalls, and directory services, and set up user accounts.
  • Installed Open ssh, java, cobol.
  • Configured sendmail.
  • Installed and configured performance monitoring tools like HP Openview and IBM Tivoli Monitoring.
  • Performed system backup and restore using IBM Tivoli SYSBACK 6.1.
  • Installed and configured IBM Tivoli Network Storage Manager (TSM) client & Server software backup and recovery solutions.
  • Performed LDAP configuration management.

Confidential, MO

UNIX/ AIX System Administrator

Responsibilities:

  • Responsible for regular & enhanced Migration of AIX p5, p6 series servers from one data center to another and migrations within the data center which also included using Live Partition Mobility.
  • Responsible for Remote AIX Support With more than 1250 servers.
  • Implemented and configured high availability and disaster recovery using Snap Mirror.
  • Installed racked and configured IBM pseries p4/p5/p6 (p570, p561, p560, p550) for production, staging and test environments.
  • Installation and configuration of LPAR’s with AIX 5.3 on p5 servers.
  • Configured the HACMP clusters to keep the high availability applications running on IBM pSeries.
  • Responsible for performance monitoring using AIX utilities and nmon, Site view.
  • Performed HACMP failover and failback as per the user’s requirement.
  • Experience of configuring 4 nodes cluster with multiple RG configuration.
  • Extensive working experience on LVM. Creating VG, LV and FS.
  • Upgrading and updating TL, APAR and patches on AIX 5.2/5.3.
  • Perform User Account management, data backups, and users’ logon support.
  • Installation and configuration of NIM master server and clients.
  • Experience of upgrading and updating p550 and p570 systems and devices firmware using HMC.
  • Provided UNIX infrastructure, operations and support for IBM RS/6000 (7026-M80) servers and pSeries servers running IBM AIX 4.3.3, 5.1, 5.2.
  • Performed installation, periodic maintenance updates and applied APAR fixes.
  • AIX systems administration and Disk Management.
  • Working for SAN switch migration.
  • Administered the UNIX System for clustered AIX Servers running HACMP and dynamic LPARs with fiber attached SAN storage.
  • Experience in creating and installing standalone VIO client LPAR and VIO client LPAR using HMC.
  • Upgraded and upgrading HMC from version 6 to 7.
  • Installed Solaris andLinuxcreated user logins, administering the system performance and monitoring user activities.
  • Building and configuring Solaris 8/10, Red hatLinuxusing Jump start server using Kick Start server as required for the project.
  • Experience in creating zones and zone sets and fabric configuration. Net Apps NAS Administration, Filer Administration, CIFS, NFS configuration.
  • NAS Netapps Filers quota Management, NFS exports, Data migration Administration.
  • Installation and configuration of VIO Server 1.3 and AIX 5.3 on client LPAR’s using p520 and 570 boxes.
  • System & Backup management using IBM TSM Backup Server and using Tape libraries.
  • Installed and configured IBM Tivoli Network Storage Manager (TSM) client and performed basic administration tasks.
  • Installation and configuration and maintenance of Netscape and Apache web server.
  • Managing various scripts to start up and shutdown databases and SAP systems.
  • Installed and configured Sudo for users to access the root privileges.
  • Involved in implementation of EMC Power path for load balancing and redundancy in data path.
  • Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS).
  • Provided support by 24x7 shift rotation basis and pager support.

Confidential, IL

UNIX/ AIX System Administrator

Responsibilities:

  • Responsible for installation and maintenance of 5.1,5.2 AIX servers
  • Installation of patches, packages on AIX, and Windows NT/2000 Servers.
  • Adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.
  • Installation, Administration and configuration of LPAR’s with AIX 5L on p5 servers
  • Experience of creating and installing standard LPAR and VIO client LPAR using HMC
  • 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
  • IBM RS/6000 SP System Software Maintenance AIX System Dump Generation and sending System Dump to AIX System Support Center.
  • Network management of TCP/IP networks, IP address management.
  • Performing upgrades of OS and applications.
  • Tested products for evaluation purposes and documented for necessary changes required as per environment
  • Korn & C shell scripting, mainly for scheduling jobs.
  • Installed Veritas clustering on oracle and websphere server.
  • Responsible for migrating and decommissioning of the system Creating Disk groups and volumes, plexes using VERITAS Volume Manager 5.0, Managing disks and file systems using VERITAS Volume Manager 5.0
  • Installing and configuring Legato Netbackup 7.3.3, VERITAS NetBackup 5.0/6.x and Tripwire
  • Creating UNIX file system, VERITAS File System and configuring VG’s and LV’s using LVM.
  • Worked extensively on HA/ Disk Volume Management with VERITAS Volume Manager/ SVM & VCS.
  • Security, users and groups administration.
  • Provided support by 24x7 shift rotation basis and pager support
  • Monitored trouble ticket queue to attend user and system calls.
  • Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.

Confidential, CT

AIX / System Administrator

Responsibilities:

  • Worked with implementation team of high availability cluster on IBM RS/6000 platform (HACMP for AIX)
  • Used the LVM extensively; Created/Modified/Deleted Volume Groups, Logical Volumes and File systems; Added/Removed physical disks; Mirrored Volume Groups and Logical Volumes.
  • Tested and installed various patches (Fix Packs) on the servers to solve the problems encountered by the applications running on the servers
  • 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.
  • Network trouble shooting using ‘ndd ’, ‘netstat’, ‘ifconfig’ etc.
  • Userid and Group management.
  • Networking and Communication devices, Server Utilities, TCP/IP, FTP
  • Installation and Administration of TIVOLI Service Desk.
  • Excellent knowledge in writing Shell Scripts; KORN and BASH
  • Document installation procedures, changes required in present environment.
  • Performed routine checks on nodes by monitoring syslogs and errorlogs for system and hardware errors. Installed and configured Oracle 8i in Solaris OS. Worked with DBA team in tuning kernel parameters for database setup and performance.
  • Working on wide patching on the boxes for SAN migration.
  • Installed SYSMON software on Solaris 7 and monitored the system performance.
  • Configured and installed servers for Solaris 7 using Custom jumpstart installations for the workstations through jumpstart server.
  • Setup cron jobs schedules for various backup and monitoring tasks.xsupported with enterprise backups using Veritas Nebackup version 4.5
  • Monitored system performance with conventional tools like iostat, netstat, vmstat and topas

Confidential, WA

AIX Administrator

Responsibilities:

  • Responsible for installation and maintenance of 4.3, 5.1 AIX servers
  • Set up and configured RS6000 (AIX) servers; troubleshoot conflicts with existing hardware and software; troubleshoot network connectivity.
  • Planned and executed upgrading, patching of RS6000 (AIX) servers
  • Disk Management on AIX using SMIT
  • Logical Volume Management (LVM) of AIX.
  • Performance Management & Tuning of AIX UNIX Kernel.
  • Created LV's and Filesystems using SMIT.
  • Configured backup/archive policies using Tivoli Storage Manager
  • Performed user management per the requirements which also included working on permissions and adding/deleting users from groups and servers.
  • Escalation of issues to Level 3 Administrators as part of the ticket escalation procedure.
  • Test and install various patches (Fix Packs) on the servers to solve the problems encountered by the applications running on the servers.
  • Specifying and procuring new AIX systems, hardware and software upgrades and peripherals.

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