Linux Administrator Resume Profile
Professional Summary
- Around 7 years of solid experience in AIX, HACMP, VIO, LPAR Linux operating system
- Experience in installation, configuration, Troubleshooting and administration of AIX 5L, 6.1 7.1 RHEL V4/V5/V6.
- Experience in build, performance, troubleshooting and Maintaining AIX and security Patching.
- Performing Administration such as Virtualization and logical partitioning of CPU, DLPAR, HMC IVM usage, VIO concept.
- Performing administration on NPIV, by assigning the Virtual Fiber scsi adapters and assigning the LUNs,
- LPM administration and performing the operational acceptance test in between the managed system to avoid any point of failures.
- Experience in IBM HACMP, POWER HA Cluster working with the application team to ensure the applications start/stop without any failure in case of event failures
- Expert in Power HA migrations from different version and in different methods
- Experienced in administrating the POWER HA clusters like increasing the clustered filesystems and replacement of hardware dynamically in POWER HA cluser
- Configuring SEA in dual VIO environment for providing continuous availability communication to the LPAR's
- Sharing physical FC adapters to different LPAR's through VIO server using NPIV and to ensure the LUNs are allocated successfully on the client LPAR's
- Exposure in Creation of VSCSI adapter and mapping the disk to client LPARs for the NPIV
- Creating shared processor pools Creation of LPAR's using micropartition
- Active memory sharing AMS Active Memory Expansion AME for the memory sharing of a pool of physical memory among partitions and to provide additional momory capacity for partition
- Managing the hardware using the HMC and webSM consoles Upgrading of Hardware management console HMC
- Managing the LPARs under the blade servers using Integrated volume manager IVM consoles
- Migration of physical to virtual environment of AIX systems P2V and also migration of Virtual to Virtual V2V of LPAR migration from one hardware to another
- Working knowledge on different POWER hardware P4, P5, p6, p7 p6 520, p6 550, p6 570, P710, P740, P780, P795 with LPAR technology
- Working knowledge of different POWER blade hardware like PS700, PS701, PS702
- Experience in managing the different BLADE hardware using Management Module console MMC and Integrate Virtual Manager IVM consoles for the LPARs
- Experience in managing the blade hardware and working with the hardware vendor for the faulty hardware replacement
- Migration of AIX from 5.x, 6.x 7.x using NIM and media and also using alt disk migration methods based on the application enivroment.
- Applying security patches TL ML for all the AIX servers
- Managed major patch release updates to the servers without complete downtime to the application servers
- Firmware upgrade to the managed system
- Physical memory CPU upgrade for the managed system as per the requirement
- Experienced in Monitoring Performance tuning of AIX server for the latency issues reported by the servers to
- User Administration like creating users, setting password, changing the attributes to the users
- Working with 3rd party tools like ITM, SCM, TSM, to ensure the events are notified to avoid outages on the productions servers.
- Experience in DR drill for all the applications in the environment to ensure the data replication from the production
- Worked on Linux operating systems like Redhat and Suse Linux
- Performing Kickstart to build out Linux environments to automate Linux installations with Kickstart to avoid manual intervention
- Managing and configuring Kickstart server, installing/up gradation of RHEL 5.x/6.x using custom Kickstart setup
- Creating customized Kickstart profiles for each server and making ISO to build the server
- Experience in Package Management using RedHat RPM/YUM and RedHat Satellite server.
- Administrative tasks periodically like cleaning of system log files, var files, removing temp files, checking file system and scheduling job automation.
- Creating/ Generating SSH keys for password less authentication in-between Oracle database.
- Experience NIC bounding configuration in Linux and UNIX systems to increase the bandwidth or redundancy based on requirement by the application
Technical Skills
Hardware: IBM P Series Servers P510, P550, P570 , P5-595, P6-595, P7-770, P7 780, Sun Ultra V480, V880 Models, IBM DS4700, EMC DMX-950, NS42G, Clarion CX 400
Operating Systems: AIX 5L v5.3/5.2/5.1,6.1/7.1, Linux RedHat, SuSE 10
Programming Language: Shell Scripting, Solaris Packaging, bash.perl
Software: Teamtrack, Clarity, SharePoint, Archer, Qualys
Tools: nmon, vmstat, tcpdump, telnet, ssh, Exceed, mksysb, NIM
Professional Experience
Statefarm Insurance, Bloomington, IL Aug'13-Till Date
Project: Statefarm Insurance
Aix/Unix Administrator
State Farm is a group of insurance and financial services company with main focus on State Farm Mutual Automobile Insurance a mutual insurance firm that also owns the other State Farm companies.
Responsibilities
- Installing and configuring VIO Servers, building LPAR clients and sharing IO devices to LPARs.
- Installation configuring of PowerHA 6.1
- Migrated Power HA from 5.x to 6.1 using different methods to reduce the downtime to the application
- Performing fail-over , fall back between the HA cluster nodes
- Troubleshooting the POWER HA and increasing the filesystem in HACMP/POWER HA cluster
- Hardware replacement of cluster nodes without any downtime
- Planning the major patch releases by coordinating with the application team for the proper implementation of security patches within the environments
- Involved in hardware migration of servers from p5 to p6 p7
- Developed and implemented the shell scripting for taking mksysb and push to the centralized NIM server.
- Migration of OS through NIM master
- Involved in migration of Physical to virtual servers P2V and virtual to virtual V2V
- VIO Server operations, creating virtual adapters and configuring Ethernet or LUNs to LPARs and performing other troubleshooting techniques. Creating ether channel with link aggregation etc.
- Installing and Configuring MPIO in dual VIO environment for providing continuous availability of storage to the LPAR's.
- Configuring SEA failover in dual VIO environment for providing continuous availability communication to the LPAR's.
- Applying security patches to VIO servers without impacting to VIO client
- Planning of downtime for the hardware upgrades for the managed systems like additional memory or CPU etc..
- Working with the IBM tech support for any faulty hardware
- Configuring NIB in dual VIO environment.
- ML, TL updating and APAR, fix installation, and patch update on AIX and devices on requirements basis and on customer specifications.
- Creating User, Group home directories and password administering.
- Installing new software or file sets, packages and other third party applications when required by the developer or business.
- Using alternate disk installation method when upgrading or installing TL or ML on AIX Operating system.
- Configuring NIM master, NIM resources, installing OS on NIM clients.
- Creating file systems, checking for error report on servers. Running DIAG against hardware of the server to diagnose any issues.
- Exporting volume group from one node to other and adding new disks to volume group, Replacing failed devices.
- Designing and managing disk space using AIX Logical Volume management. Strong technical skills on AIX LVM and troubleshooting.
- Checking error reports and health check of the servers, running snap on AIX Server to analyze system issues.
- Checking the file systems and increase/decrease the file system if required.
- Fixing mount issues, checking filesystem integrity, running fsck in maintenance mode on rootvg logical volumes if any corrupted lv's in rootvg.
- Performance monitoring analyzing these reports to figure out any performance issues.
- Configuring NFS on the servers, working with NFS mounts and related issues.
- Taking regular system backup using mksysb and volume group backup using savevg utilities.
- Creating /removing paging space, checking paging space usage and increase/decrease if required.
- Configuring system dump devices, taking system dump, estimating system dump, uploading the system vmcore files to IBM ftp site to get it analyzed by IBM engineers.
- Closely working coordinating with application team in case of any production issues
- Working with the Storage team in case of any data replication or LUN issues.
- HMC connectivity for managed systems p520, p550 and p570 through WebSM remote client.
- Production support of Investment management Apps 24/7 on a weekly rotation basis. Involved in the build and support of DEV, QA and UAT WAS 6.1.
- Change management with in the team and coordinating with the application team for the proper planning and implementation of changes on weekly basis
- Attending the CAB meeting for the CR discussion with the customer to provide the technical justification for every CR activity
Confidential
AIX/Linux Administrator
Responsibilities:
- Responsible for installation, configuration, upgrade, troubleshooting and maintenance of AIX 5.3/6.1/7.1, VIOS and RHEL 5/6 on pSeries systems OS Security Patches and Additional Software updates installation including SSH/SSL
- Vulnerability remediation of Qualys Vulnerability scans and helped client achieve 100 compliance quarter after quarter.
- Worked on power7 frames and built dual v
- System backups management
- Designed and documented DUAL VIO technical procedures Monthly CIRAT security patching including TL/SP update, OS upgrade on AIX and regular patching on RHEL.
- Provided 24X7 support.
- Have built and installed Dual Vio Servers on Power6 520, P550, p595s and p770s.
- Installed and configured Aix 6.1 on P595 servers and p770 servers.
- Migrated to Aix 6.1 from 5.3 and VIO Servers VIO 2.1 to 2.2.
- Created Virtual Scsi server and client adapters.
- Created Shared Ethernet adapter SEA with Control Channel adapter and the Failover.
- Mapped the disks from the SAN to the VIO clients through VIO servers.
- Building Application hosting AIX servers, VIO Servers
- Installation and configuration of LPAR's with AIX 5.3 and 6.1 IBM eServer pSeries p7, p6 and p5 Servers
- Capacity upgrade to the existing systems dynamically through HMC for physical adapters, memory, cpu
- Upgrade Hardware Management Console HMC firmware and software
- Worked extensively on production and non-production servers to make them complaint as per SOX,PCI and PII standards
- Performed OS upgrades on approx. 500 AIX, Solaris and Linux Production/Non-production servers including upgrades on HACMP production clusters without incidents.
- Installation of the operating system and applications on AIX using NIM installation method by creating NIM master and client with lppsource and spot
- Performed OS Migration from AIX 5.3 to AIX 6.1 using nimadm method
- Installation, configuration and administration of VIO server and VIO client LPAR'S via HMC
- Assigning disks, Ethernet adapters and SCSI adapter to VIO Clients through VIO servers
- Assigning disks to VIO Clients by NPIV
- Configuration and upgrade of HACMP, performing failover and fallback of HACMP Clusters on a regular basis as per the application requirement
- Worked with DBAs for supporting Oracle 9i / 10g / 11g / Raid configuration database maintenance activity on Dev / UAT / Prod Servers
- Worked on Multipathing Software EMC Powerpath
- Developed scripts to make AIX, Solaris and Linux servers compliant and also generate evidences to show present configuration of server as per MSB CIST-0027 standards
- Brought client environment from red to green from compliance point of view in few months and got numerous client appreciations both verbal and in emails.
- Experience in writing, updating and proofing documents and procedures
Confidential
AIX/Linux Administrator
SunTrust Banks, Inc., is an American bank holding company and one of the nation's largest holding companies.
Responsibilities:
- AIX 5.3 / 6.1 , Solaris 9, 10 , Linux SuSE 10 system admin.
- Requirement analysis and designing of hardware and network architecture.
- Analysis and Environment setup as per custom requirements from Design, Development and testing team at offshore
- Formulation and implementation of Backup strategies.
- Liaising / Interacting with clients, offshore and Onsite Management
- Sizing / Architecting / Performance Analysis / Troubleshooting / Managing UNIX / Linux Based Operating Systems and Hardware. This includes designing High Availability for Core Applications and Systems, Backup Strategy, DR, IBM SAN disk allocation, Load Balancers management etc.
- System Tuning in the Performance Engineering Environment
- AIX, Sun Solaris, Linux system monitoring, memory management, user space management, file system creation and maintenance
- Environment setup for the application software, Performance monitoring, creating and managing user accounts, access control management
- Reporting Server Utilization on Daily and Weekly Basis.
- Participated in internal and corporate audits
- Studying the entire server / application management process, procedures, identifying areas of improvement and implementing the same
- Working with DBAs for supporting Oracle 9i/10g/11g database maintenance activity on Dev / UAT / Prod Servers
- Monitor AIX environments to ensure that access is appropriate and report unauthorized access or attempts to management
- Working with CCM.Net to register, resolve and monitor all incidents and changes related to IT Infrastructure
Confidential
Aix/Unix Administrator
- Responsibilities AIX OS level support for the different version like 5.x/6.1and installing configuring of different operating systems like AIX 5.x 6.1
- Troubleshooting Fixing of hardware and OS level issues and hardware level issues
- Logical Volume Management, creating the Logical Volumes, Files systems and mounting them
- Working with different blade servers with VIO support and IVM consoles
- Experienced in managing the Integrated Virtual Manager IVM consoles and managing the LPAR's with them
- Experience in managing the blade server with the Management Module consoles MMC
- Installating Configuring the blade servers with VIO IVM configuration and managing them with MMC
- Troubleshooting the Blade servers in case of any hardware issues
- Servers builds on managed system for LPARs and on Blade servers
- OS Migrations from 5.x to 6.1 with the different POWER BLADE hardware
- Firmware level upgradations on all the POWER hardware and also on the blade servers
- Patches Technology level upgradations for all the LPARs and to the servers/LPAR's under blade hardware
- Working with VIO servers LPARs and on blade servers
- Working with IVM consoles for LPARs under blades
- Managing the blades with MMC and LPARs with HMC
- Supporting SAN attached to the AIX boxes on all the datacenters like creating and mapping LUNs to the servers
- Working knowledge on Global/Metro mirror Flash/remote copy mappings with V7000 SVC
- Fault Monitoring, Troubleshooting, logging vendor calls for hardware issues.
Confidential
Aix Administrator/Support
Duke Energy is a sustainable electric and gas company and is the s the largest electric power holding company in the United States.
Responsibilites
- Installation, migration and maintenance of AIX LINUX operating systems.
- Device management, including adding, changing, and configuring physical and logical devices.
- Zone Creation on Cisco and brocade San switches. Creating, managing and mapping Luns to Servers from DS8K,DS3K,DS4K Storages.
- Configuring Fcip routers and implementing and working on Global mirror between Storages DS8K .
- Installing and Updating Device drivers for Storage, Tape library. SDDPCM, Atape . Firmware Installations on P series servers,Tape library,HMC.
- File system management - Creation, Deletion, File Systems Changes Grow and Shrink
- ftp access, cron and at job Scheduling.
- Disk Storage Management in AIX Logical and Physical Volume Configuration and maintenance
- Monitoring systems, CPU, memory and disk utilization using topas, sar, vmstat, netstat etc.
- User, Patch and Security Management, Problem determination.
- Troubleshooting booting related issues, creating boot records, working with system maintenance mode, accessing rootvg in system maintenance mode, recovering root password, fixing booting related issues, working with bootlist.
- User Management - Creating, maintaining, and removing users and groups. Security settings on user accounts and groups
