Manager Aix,Linux and cloud

YESHWANTH VARDHINENI

***********@**************.***

Mob:-+91-703*******

Aix & Linux Administrator

Professional Summary:

5+ years of Experience in AIX & 3 years of experience in LINUX Administration.

Extensive experience in working with AIX, NIM, Power HA, VIO and RHEL environments.

Career Achievement:

Around 5+ years of experience in IT industry and the same as UNIX and LINUX Systems Administrator.

Excellent skills in UNIX and Linux System Management concepts including file system organization, allocation and maintenance, configuration and installation of storage subsystem, backup/restore strategies, implementation, management and troubleshooting.

Technical expertise also includes strong administration and maintenance of AIX using HMC, NIM, mksysb, HACMP management and LPAR, on pSeries.

Experience includes Data Replication, Migration and Networking.

Worked in BAU environments and handled all the tasks successfully.

Strong Communication and analytical skills. Able to handle multiple task, demonstrated ability as a team player as well as well suited independently.

Hands on experience on High Availability Environments. 24 X 7 Production on Call Support.

Education:

B.E from Anna University – 2012.

Board of intermediate Education – 2008.

Technical Skills:

Operating System : AIX Versions 5, 6 and 7 & Red Hat Linux OS 6X, 7X, Windows 2012

Cluster Technology : HACMP and GPFS

Backup : Commvault

Virtualization : VIO, LPAR, DLPAR, HMC

Others : NIM, NFS, SSH, FTP, SUDO

Career Profile:

Company: Trimix Americas

Designation: Consultant

Duration: May 2019 to Till date

Working On AIX and Linux, Suse, CentOS and windows server’s migrations from on premises to Azure Cloud.

Basic Administration Knowledge on Azure cloud

Knowledge on azure profile creation.

Knowledge on user management related tasks.

Knowledge on Lift and shift and migration from on premises to azure cloud environment.

Knowledge on performing discovery, assessment activities before doing azure migration activity.

Working on Inventory report, Discovery and Assessments of Servers and Applications.

Participating on Migration strategies and Build documents preparation.

Company: E Hosting Data Fort

Designation: Senior System Administrator

Duration: November 2017 to May 2019

Manage Data Center

AIX, Linux and windows support for Datacenter Clients

Provides overall support and maintenance of operating systems, Application and network connectivity for all AIX and Linux systems.

Provides support to vendors and application programmers as necessary.

Maintains current operating systems and patch versions that comply with vendor requirements.

Coordinates hardware repairs with appropriate vendors on supported platforms as necessary.

Performs research and development on new products, technologies, and operating systems as required.

Server build, configuration.

Log calls with IBM and Redhat for software or hardware issues.

Working with HMC, performing dlpar operations on dlpar nodes, installing OS on lpars using NIM etc.,

VIO Servers, working with virtual adapter – creating client and server adapters, mapping adapters and allocation LUNs to LPARs via VIO etc.,

Working on HACMP and GPFS related issues.

Provides overall support and maintenance of operating systems and network connectivity for all AIX systems.

Monitors system performance on a daily basis to ensure adequate response times for production applications.

Establishes and documents procedures to ensure data integrity including system fail-over and backup/recovery.

Has the capability to handle the teams successfully. Coordinated and guided individuals to the higher roles.

Took training's and sessions to the team and educated them on Technical and Process prospective.

Provides reliable backup services. Conducts routine hardware and software audits of AIX servers for compliance with established standards, policies, configuration guidelines, and procedures.

Provides recommendations to management on changes, upgrades, and new hardware as required.

Provides support to vendors and application programmers as necessary.

Performs research and development on new products, technologies, and operating systems as required.

Maintained all the servers up to date compliant with the ITCS 104.

Installation, migration, upgrading and maintenance of AIX operating systems.

Keeping the complete backup of the system and restoring data in the event of disk failure.

User Management - Creating, maintaining, and removing users and groups. Security settings on user accounts and groups.

System Administration and performance monitoring Task on AIX servers.

File system management using LVM, 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 boot list.

Worked on cron and at job schedule, managing log files, errpt, daily management activities.

Disk Storage Management in AIX – Logical and Physical Volume management, configuring disks, working with volume groups, logical volumes, and physical volumes.

Mirroring volumes groups, logical volumes and VGDA and fixing related issues.

Monitoring the system, cpu, memory and disk utilization using topas, sar, vmstat, netstat, nmon, etc

Working with paging spaces – creation, increase, decrease paging spaces as per the requirement.

Fixing Audit related violations.

Using alternate disk installation method for critical servers to reduce down time.

NFS Administration, exporting file systems, mounting exported file systems, working nfs daemons and fixing any mounting issues.

Configuration of new devices using cfgmgr – faulty disk Replacement in case of any disaster. Working with mirrored logical volumes. Device management, including adding, changing, and configuring physical and logical devices.

Configuring NIM Master, creating resources on NIM to have network installation on clients such as stand-alone servers or lpars.

HACMP Cluster Configuration, setting up new HACMP environment, Planning, Design, Configuring HACMP networks, Failover testing and verification, Cluster Synchronization, performing HACMP health checks – looking at cluster statistics.

Trouble shooting HACMP related issues, going through the log files.

Adding LUN’s and Files systems management on HACMP.

Responsible for testing a mutual takeover configuration in a HACMP environment.

Worked on HMC, administering, configuration of LPAR, DLPAR nodes, resource allocation, moving resources as when required dynamically.

Working with HMC, performing dlpar operations on dlpar nodes, installing OS on lpars using NIM etc.,

VIO Servers, working with virtual adapter – creating client and server adapters, mapping adapters and allocation LUNs to LPARs via VIO etc.,

Working with hardware and software supports.

Working on incident management, problem and change management.

Roles & Responsibilities in LINUX Administration.

Providing On call support & Able to perform in 24/7 Environment

System administration, maintenance and monitoring various day-to-day Operations.

Creating and increasing the file systems by using LVM

In Linux Environment, Changing Root Password & troubleshooting Booting (Issues).

Day-to-day management of support and demonstration environments including software and hardware upgrades, patch management and infrastructure design in a mixed of Linux environment.

Giving special permissions using SUID/SGID and Sticky bit

Setting up FTP, NFS for file sharing.

Install and Upgrade Patches in Linux Machines.

Creating and Managing SWAP Space management.

File System Security with ext2 and ext3, which includes user, groups read write and executable permissions also with some special permission stuid, setgid & sticky bit.

Applying Access Control List (ACL’s) on the files in order to allow multiple users to access a particular file or directory.

Supporting servers in production, DC, test& UAT environment.

Troubleshooting activities and helping user requests.

Coordinating for execution of outage changes, Scheduled Maintenance's, Root cause analysis

Maintain and audit user accounts.

User & Group Administration and Resolving the user related problems.

Creating and managing file systems.

Installation of packages using RPM and YUM

Change owner ship on files and Directories.

Implementing sudo on users.

Installing and configuring of Redhat Linux OS.

Scheduling system events using Crontab utility

Configuration of SSH

Administering and monitoring System performance, disk Space and memory.

Handling Performance issues.

Company: IBM India

Project: Kaiser Permanente

Designation: System Administrator

Duration: May 2015 to May 2017

Provide day to day support for AIX Servers

Work on tickets as part of BAU

Perform changes on AIX servers.

Server build, configuration.

Configured the systems for TCP/IP Networking with the existing LAN, Setting up SSH and SCP.

Log calls with IBM for software or hardware issues.

Handling NFS server issues, mounting issues etc.,

Extensive experience in AIX volume manger

Setting up Network Installation Manager in the next work, configuring resources and perform client installations.

Server installation, good at AIX SMS menus.

Configuring new devices in AIX – expert in device management in AIX

Work on AIX users and security. Security hardening in AIX.

Performing server health checks. AIX error reporting tool, figuring out errors and taking necessary actions.

AIX System backup using mksysb image using tape and as file.

Using NIM server for server recovery (mksysb), TL upgrade or Fix install on NIM clients using NIM server.

Taking system dump in case of any issues with servers and get it analyzed by IBM (by raising software call).

Having good understanding on AIX boot logical volume and fix any booting related issues.

Configuring and monitoring paging spaces and their usage.

Scheduling cron and at jobs.

Expert in Virtualization, VIO – vitalizing network interface cards, and disks.

Configure redundant VIO servers, create ether channel, Shared Ethernet adapter

Performing SEA failover tests

Mapping disks to VIO clients. Configuring redundant paths to disks using MPIO.

Performing different operations on LPARs – assigning /removing/moving resources to partitions dynamically.

VIO server backup and recovery.

Root password recovery.

Good at configuring resources, resource groups in HACMP.

Performing cluster failover and fail backs. Checking cluster statistics and cluster topology.

Modifying resource groups in the cluster performing cluster verification and synchronization.

Good experience in working with Cluster Single Point of Control (C-SPOC).

Implement and maintain server virtualization using LPAR and DLPAR capable servers.

Company: Aditya Birla

Designation: System Administrator

Duration : April 2014 to May 2015

Provide day to day support for AIX Servers

Work on tickets as part of BAU

Perform changes on AIX servers.

Perform changes on AIX servers.

Server build, configuration.

Log calls with IBM for software or hardware issues.

Handling NFS server issues, mounting issues etc.,

Extensive experience in AIX volume manger

Setting up Network Installation Manager in the next work, configuring resources and perform client installations.

Server installation, good at AIX SMS menus

Hands on experience on TL Upgradation

Personal Details:

Gender : Male

Passport : Valid

Languages : English, Telugu, Tamil and kannada

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