SUMMARY

• Over 7+ years experience in UNIX - AIX 5.3/6.1/7.1 and -RedHat Linux/CentOs v5.0/6/0) systems administration that include day to day support to production issues as well as Planning and Build of VIOS and NIM server/clients relationship, HACMP/PowerHA Cluster and Nodes etc along with their Installation, Configuration, Migrations, Consolidation and Upgrades and other maintenance tasks on IBM Power 5, 6 and 7 Servers as well as HP Blade servers Proliant G5/G6 SAN Switches, SAN Storage DS5000 series HMCs V5.0/V6.0 Hardware Management Console.
• Performed Logical Volume Management (LVM), User and Group Managements, Backup and Recovery, DR operations, Performance Management, Virtualization (VIOS/VIOC), HA Clustering (HACMP), DR Disaster Recovery, Security Applications, Procedures Standards, Kerberos Authentication for user login setup such as, Kerberos Server Setup, krb5 Filesets Installation, Active Directory AD Synchronization, LDAP setup, Configuration etc.
• Extensively used NIM Master to install AIX 5.1/5.2,5.3/6.1, fix pack, Service pack, patches, restore mksysb etc as well as Kick start and PXE boot Instalaltion,.
• Responsible for serversperforming Monitoring, user and groups account maintenance, Logical Volume Management LVM such file systems creation, modifications and troubleshooting (JFS/JFS2/GPFS/EXT2/EXT3, OS hardening as per guidelines laid out by design team / security team System disk storage maintenance (LVM) System monitoring - CPU, Resource Monitoring and Management, Network Performance, Disk Utilization, User/Group Management, Memory utilization, Capacity planning inputs.
• Supported application deployment and performance tuning,24x7 Infrastructure & Application support, periodic reporting of Problem resolution and RCA for system issues OS/Patches upgrade, Scripting for automating tasks, Backup / Restore, Responsibilities include hardware, OS level troubleshooting.
• Knowledge and experience working with Shell Bash/kasha scripts and procedures to automate administration tasks, HACMP, LPAR and DLPAR, WLM, RMC, VIO, NFS/FTP configuration and administration.
• Worked with IBM p 0 p595, p 0 p 0 and virtualization of resources, performed Server build by creating LPARs for configuring NIM, VIOS, VIOC, as well as HACMP Node clusters with the help of HMC Version 5.0 /7.0. Server build and restoration using NIM, ignite, kicks start, PXE boot securiy, backup, recovery and upgrades of IBM-AIX 4.3/5.1/5.2/5.3/6.1/7.1 , Solaris, Windows and Linux (Red Hat and Centos, Performed Complete Installation of AIX 5.1, 5.3, 6.1, VIO 1.2, 2.2, Migration Installation, TL/ML Upgrade, and Patching, FIX/service pack installation, configuration and troubleshooting. Auditing for security remediation and enhancement for users history, password change, file permissions, setuid, rlogin, rsh, telnet, rcp, rhosts, syslogd, scan and audit root accounts, password change policy.
• Parametric changes in /etc/security/passwd, user, etc..,. Files for high level security.
• Managed DNS, LDAP, FTP, Tomcat and Apache Web servers on LINUX (Redhat ES 3.0) servers.
• Extensively used IBM Blade Center HAMM and IVM for VIOs and VIOCs and HMC-V7 and V6 to perform various tasks like creating VIOS and LPARS, performing DLPAR operation to change CPU configuration, changing LPAR profiles, Activating LPARS, power-off frame etc.
• Involved in performance tuning discussions with performance experts and did analysis of NMON report and suggested remedies.
• Worked on Migration of TSM 4.3/5.1/5.2 to TSM5.3 and 5.4 on AIX and windows servers.
• Participated in Disaster Recovery tests and recovery of AIX and TSM server, PowerHA and Service guard cluster software.
• Extensively worked on Oracle RAC requirement, allocated EMC SAN Storage which was to be added to Oracle ASM including the ownership being given to DBA. RAC disks were to use ASM and not Linux LVM, and also created OCFS file systems as part of the Oracle RAC cluster build.
• Experience working with SAN (EMC Clarion, NETAPP and IBM’s SVC and IBM DS5000 series, performed disk/LUN creation, Mapping, Zoning and Masking of Luns with the servers hosts.
• Expertise in Security and Health remediation, critical assessments, disaster recovery and Virtualization VIOS/VIOC, Installation, Configuration and Maintenance of IBM HACMP V5.3 and 5.5 on AIX 5.1/5.2/5.3/6.1.
• Discover and made new LUNS available on dual VIO Servers by changing their reserve policy.
• Ensured disk performance by changing disk attributes like queue depth,largesend etc on clients and VIO servers.
• Created NPIV and SCSI adapters from lpar profiles and through hmc command line.
• Mapped NPIV Adapters to fcs ports from VIOs servers and logged wwpn numbers from hmc command line using chnportlogin command.
• Deleted all the dead powerpaths from VIO servers for correct LUNs discovery and proper mapping of LUNS to vio clients using powermt check command.
• Performed LUN migration to migrate the complete rootvg data from one disk to another disk without having downtime.
• Discover new LUNS,mapped new LUNs to vscsi adapter from VIOs and get it onto Lpars and configured TSM backups on new disks.
• Added extra require storage on existing disks,varyoffvg and varyonvg to discover the new storage, increased PVs to LVs and then increased the File System Size.
• Configured two node HACMP cluster on AIX Lpars.
• Added a new disk to existing HACMP resource volume group.
• Well versed in Data center operations such as managing the racking and cabling connections of servers, Hardware diagnostic operations, installation and replacements of Hardware, administrating, troubleshooting, decommissioning, tuning, and replacement of Hardware.
• Extensive experience in deployments and management of enterprise applications using Web Sphere Application server WAS 4.0.x/5.0.x/6.0.x, JACL, TCL, XML Config, Workload Management (WLM), Tivoli Performance Viewer, JMS, DB2/UDB (7.2.x/8.0.x), Oracle 9i/8i/7.x on UNIX(AIX, Solaris, LINUX, HP), z/OS and Windows NT/2000.
• Built HACMP Clusters from the scratch,single point of contact for HACMP Cluster issues & support
• Worked in coordination with DB2 DBA’s, Oracle DBA’s and WAS Admins and performed changes as per there requirements
• Exposure on IBM PPRC and to establish SAN Connection to perform SAN Mirroring
• Planned and Documented DR plans for many critical servers between the distant data centers
• Auditing for security remediation and enhancement for users history, password change, file permissions, setuid, rlogin, rsh, telnet, rcp, rhosts, syslogd, scan and audit root accounts, password change policy.
• Experience working in Oracle /SAP ERP enterprise resource environment, hands on experience working on Installation, Maintenance, Upgrade and operation and support of SAP and Oracle applications.

TECHNICAL SKILLS

Operating Systems: IBM AIX (4.3.3, 5.1, 5.2, 5.3, 6.1/7.1) Linux 6/7/8.x (RedHat, SUSE), Windows 2000/NT4.0, Sun Solaris7/8/9/10, HP-UX11.x

Platforms: IBM RS/6000, SP2, p 520/550/570/590 , 670/680/710/750/ , Dell PE2650, HP Proliant G5/G6 Series, EMC Symmetrix,NetApp, Connectrix, FaST,DS5020, DS8100,DS4300, F20/40, HACMP

Tools: Active Directory, VERITAS Netback up, EMC VMAX, EMC symmetrix,NETAPP, NETGEAR, IBM’s SVC and IBM DS 5020/4000/ 4800 , 6800 and 8000 SAN VERITAS Volume Manager, Veritas Volume Replicator, BMC, Tivoli, NMON Analyzer, Tripwire,, NAS, Korn, C shell scripting

Languages: C, C++, VB, Java, Perl and Shell programming

Databases: Oracle 8i, 9i and 10G, DB2, MS SQL SERVER 7.0/2000

Networking: TCP/IP, HTTP/HTTPS, FTP, SMTP and SOAP.

Web / App Servers: IBM WebSphere App Server (3.5/4.0/5.0), IBM HTTP Server (IHS), Apache, Tomcat, iPlanet, Netscape Enterprise Server.

Software Applications: Oracle Supply Chain Planning, SAP - ERP, MS Office, MS project, Remedy, VISIO, MS Project, Minitab Statistical.

PROFESSIONAL EXPERIENCE

Confidential, Los Angeles, CA

Linux/AIX Admin

Responsibilities:

• Supporting the Clients Production operations by providing 24/7 support in problem resolutions as well as uilding new VIO servers and clients from p-series p550, p560, p570, p590 using HMC by
• Creating Logical Partitions of VIO Servers and VIO Clients on series frame and assigning processor, memory and Ethernet adapters to VIOS and assigning memory and processor to VIOC (LPARS), installation and configuration of VIO servers and updating system firmware by using HMC along with Logical Partition technology (LPARs).
• Installation of VIOS 1.5.2.5, VIOS Fix packs 11.1 Service Pack via NIM Server, AIX 5.3/6.1 on all VIOC/LPAR Clients, and installation via NIM Sever.
• Implement NPIV and VSCSI on VIO servers.
• Set up GPFS clusters on two node AIX servers.
• Discover and made new LUNS available on dual VIO Servers by changing their reserve policy.
• Ensured disk performance by changing disk attributes like queue depth,largesend etc on clients and VIO servers.
• Created NPIV and SCSI adapters from lpar profiles and through hmc command line.
• Mapped NPIV Adapters to fcs ports from VIOs servers and logged wwpn numbers from hmc command line using chnportlogin command.
• Deleted all the dead powerpaths from VIO servers for correct LUNs discovery and proper mapping of LUNS to vio clients using powermt check command.
• Performed LUN migration to migrate the complete rootvg data from one disk to another disk without having downtime.
• Discover new LUNS,mapped new LUNs to vscsi adapter from VIOs and get it onto Lpars and configured tsm backups on new disks.
• Added extra require storage on existing disks,varyoffvg and varyonvg to discover the new storage,increased PVs to LVs and then increased the File System Size.
• Configured two node HACMP cluster on AIX Lpars.
• Added a new disk to existing HACMP resource volume group.
• Did the P770 planning with the Architect and build it from the scratch.
• Configuration of NIM server and Client and performed the network installations.
• Responsible for day-to-day support (AIX) which includes. System setup and customization OS installation and configuration OS hardening as per guidelines laid out by design team / security team System disk storage maintenance (LVM) System monitoring - CPU, Disk, Memory utilization etc. Capacity planning inputs.
• Periodical reporting Problem resolution and RCA for system issues OS/Patches upgrade, Scripting for automating tasks, Backup / Restore, Responsibilities include hardware, OS level troubleshooting.
• Knowledge and experience working with scripts and procedures to automate administration tasks, HACMP, LPAR and DLPAR, WLM, RMC, andVIO configuration and administration.
• Building and configuring AIX V6.1, 5.3 on LPARs using NIM.
• Worked in coordination with DB2 DBA’s, Oracle DBA’s and WAS Admins and performed changes as per there requirements
• Changed parameters as per the requirement of oracle DBA’s.
• Performed Security on users, group’s administration and daily backup and restore operations, networking service, performance, and resource monitoring.
• Installing, upgrading and configuring Redhat Linux,SLES ES 4.x/5.x using kickstart installation
• Worked on VM motions on the vm’s, build the SLES/RHEL vm’s from the template in 5/5.5 vcenter.
• Allocate SAN from VMware data stores to the vm’s and created Filesystesm, LV’s and PV’s using LVM.
• 24x7 on call production support
• Shell scripts to gather server resource statistics like available memory, processors etc from multiple servers
• Written Shell scripts to check if all the servers have dual SAN paths and if they are live paths
• Wrote Scripts to gather information on the peak load times and logs of multiple servers
• Maintain and Creation of User profile and respective Groups.
• AIX 5.2/ 5.3/6.1 migrations using NIM and local install methods.
• Responsible for mirroring and un-mirroring using logical volume manager (LVM).
• Responsibility for installation, Config- and Troubleshooting of TSM as secondary admin.
• Designed & built a five node HACMP cluster from scratch and added nodes to two different existing clusters.
• Experience in Migration of HACMP 4.3.1/4.5/5.1 to HACMP 5.4 using Node-by-Node migration without changing the cluster setup.
• Extending file system and space management in HACMP and non HACMP environment.
• Checking the status of the cluster and monitored the error log files of the HACMP.
• Created and applied a cluster snapshot during cluster failure because of configuration changes in HACMP cluster environment.
• Responsible for adding and setting up the start and stop scripts for the application server in a HACMP cluster environment.
• Providing support to install the oracle Databases and WebSphere Applications.
• Responsible for Websphere and Weblogic application shutdown and restart.
• Responsible working with the Application team to test which process is consuming most of the processing time by using topas.
• Documenting each and every procedure and uploading the Documents on the Internal Web Portal of the Company for Team Reference.

Environment: IBM pSeries 550, 570,590, 595, AIX v5.2/5.3/6.1, VIOS, LPAR, HACMP V5.2/5.3, Windows 2000, Oracle 9i,Oracle 10g, Veritas Netbackup Java, DB2r, LVM, SSH,IBM BladeCenter JS22,, FAS3100, FAS2000 storage devices, IBM SAN DS5020/4000,NetApp,NetGear, AN-EMC-Symmetric, Tivoli, TSM, Web Sphere Application Server.

Confidential, Atlanta, GA

AIX/Linux/Solaris Sys Admin

Responsibilities:

• Working in a production environment that consists of almost 10,000+ Servers including RS/6000, pSeries, HP and IBM Blade Center
• Creating VIO Servers and VIO Clients on pSeries frame and assigning processor, memory and Ethernet adapters to VIOS and assigning memory and processor to VIOC (LPARS).
• Create and Edit Scripts for Server Turnover Process, Performance Testing and Backup etc.
• Setup of VIO Clients/LPARS sharing Ethernet Adapters and SCSI’s
• 24x7 on-call support of AIX & RHEL Servers.
• Performed DLPAR operations to dynamically increase memory of LPARS, change CPU Settings from Capped/Uncapped, Dedicated/shared, changing weights on LPAR, changing VCPU’s etc
• Used HMC-7 to make VIOS and VIOC partitions
• Maintaining and monitoring the file systems and performance tuning on AIX (5.1/5.2./5.3/6.1 ) servers (550/ 570/ 595/670/680 ).
• Expertise in doing NIM installations on AIX 5.2/5.3/6.1,
• Disaster Recovery, Security Applications, Procedures Standards, Kerberos Authentication for user login setup such as, Kerberos Server Setup, krb5 Filesets Installation, Active Directory AD Synchronization, LDAP setup, Configuration etc.
• Responsible for system partitioning (LPAR) and operating system installation using HMC
• Edited Sunder script, added Oracle DBA and Web sphere Admin to sunder’s list limiting their access to specific directories to perform the task to improve security
• Performed recovery for Windows 2003, NT Servers and used VERITAS Netback up to restore the data. Got the backup server up and running in less than 2hours
• Configuring and maintaining DNS, DHCP,FTP,NIS servers
• Responsible for LPAR and DLPAR system administration
• Expertise in installation configuration and administration VIOS
• Responsible in configuring of virtual Ethernet, virtual SCSI and virtual memory
• Responsible and expertise in working with LVM, Disk mirroring, unmirroring, Disaster Recovery, backup and restore for AIX 4.3/5.2/5.3
• Configure Etherchannel / Link Aggregation, Auto mount
• Responsible in configuring of virtual Ethernet, virtual SCSI and virtual memory
• Responsible and expertise in setup and configuration of TCP/IP network for the public network and backup network using mktcpip and chinet.

Confidential, RTP, NC

AIX/Linux Administrator

Responsibilities:

• Worked with IBM p710, p670, p 0 p550 and & RS6000 servers connected to storage area networks. Configured and Installed logical partitions (LPARS), assigned hardware resources within LPARS, installed AIX 5.2 and 5.3 and installed patches.
• Creating Logical Partitions of VIOServers and VIOClients on pSeries frame and assigning processor, memory and Ethernet adapters to VIOS and assigning memory and processor to VIOC (LPARS).
• Installation of VIOS 1.5 and 2.1 and Installation of AIX 5.3 on LPAR’s through NIM Sever
• Prepared Disaster Recovery strategies & tested them by restoring servers through mksysb restores
• Supporting & troubleshooting RHEL servers
• Installing, upgrading and configuring Redhat Linux ES 4.x/5.x using kickstart installation
• Installation of RHEL 3.3, 3.9, 4.3, 4.4, 4.5, 5.2 on the IBM blades
• Worked on Live partition mobility (AIX 6.1)
• Worked on NPIV N Port ID Virtualization) and created N Port Ids to share single phy- N port.
• Build LPARS by restoring mksysb
• Created Etherchannel and shared Ethernet Adapters, Configured SAN Storage for AIX Servers
• Setup of HACMP Cluster. Configured Shared SAN Storage, created Concurrent file sys, VG’s
• Performed resource group move to test as a DR strategy HACMP Cluster
• Extensively used HACMP - CSPOC to create VG’s, LV’s and File Systems.
• Extensively worked on setting up of HACMP clusters including RGMOVE and performed failovers, Starting up and shutting down of HACMP Cluster Application for change activities.
• Administered the UNIX System for clustered AIX Servers running HACMP and dynamic LPARs with fiber attached SAN storage.
• Configured EMC (SAN) to HACMP clusters and extended in concurrent vg’s.
• Set up and validated networking and configured an AIX NIM (network installation) environment that served multiple standalone clients.
• Installed, upgraded and recovered HMC environment, created configuration and created backups of installed HMC's.
• Installed and build from scratch complete NIM Setup. Added different clients to NIM server and their Backup.

Environment: AIX6.1/5.3/5.2, SAP R/3, DB2UDB, VIOS, HACMP, Linux, HPUX, Solaris, Windows 2003 advance server, LPAR, JBOSS application server, Oracle RAC, WAS6.0 SAN.