Shiva Kumar
Chennai
Summary
Around 4.5 years of experience as an System & AIX Administrator, And having Good Knowledge on AIX Logical Volume Manger, HACMP Cluster Administration Basics, Managing VIO Servers, LPAR and DLPAR operations, Having intermediate level Knowledge on LINUX and VMware ESXI 6.5 to 7.0 U3
Overview
5
5
years of professional experience
1
1
Certification
Work History
AIX Administrator
Saint Gobain India Private Limited
02.2022 - Current
- Company Overview: Client: Saint Gobain India Private Limited
- Oracle Upgrade on AIX Servers: Upgraded Oracle from 12c to 19c SP 19.19
- AIX OS Migration: Migrated AIX OS in SAP Environment from 7.1 to 7.3
- TSM Application Upgrade: Upgraded TSM Application from 8.1.10 to 8.1.17
- SAP Application Support: Participated in SAP Application's SAP SP Upgrade
- Data Restoration and Refreshment: Performed data restoration and refreshment with PRD data
- SAP Application DR Test: Conducted Disaster Recovery tests for SAP applications
- Linux Training and Certification: Completed a Linux course and obtained certification on Udemy
- Microsoft Azure Certification: Achieved AZ-900 Microsoft Azure Fundamentals certification
- SAP Content Server Installation: Installed SAP Content Server with MAX DB on Linux OS
- VIOS Migration: Participated in VIOS Migration from 2.2.4 to 3.1.3
- HMC Server Installation: Installed v10 HMC Server to monitor the hardware status of AIX servers
- AIX OS Service Pack Upgrade: Upgraded AIX OS from 7.1 TL05 SP05 to 7.1 TL05 SP09
- PowerHA Upgrade: Upgraded PowerHA from 7.2 TL3 to 7.2 TL6
- Storage Management: Participated in V5000 storage expansion and gained knowledge in creating and assigning LUNs
- Security Updates: Updated OpenSSL and SSH, JavaSDK, iFixes Etc
- Kernel Upgrade: Upgraded kernel in SAP Application on AIX OS
- Firmware Upgrade: Upgraded firmware in the Tape Library (PRD)
- Linux Certification: Completed course and certification on Udemy
- Microsoft Azure Certification: AZ-900 Microsoft Azure Fundamentals
- Client: Saint Gobain India Private Limited
AIX Administrator
Iscribe Software Solutions Private Limited
12.2019 - 01.2022
- Company Overview: Client: TCS
- Installing and configuring AIX 6.1/7.1/7.2/7.3 on P series hardware
- 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 / filesets, 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
- Participated in AIX migration project - Migrating AIX Version 5.3 to AIX 6.1 Operating System
- 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
- Run snap on AIX Server to analyze system issues
- HACMP - Monitoring servers, Starting and Stopping Cluster Services, moving resource groups across the nodes, increasing filesystem in cluster filesystem, synchronizing cluster resources and cluster verification
- Perform health checks on HACMP nodes, running cluster statistics to find cluster stability, finding resource group status etc
- Creating Volume Group, Logical volumes, and file systems in both standalone and HA environment
- 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 using vmstat, iostat, sar, topas, netstat and nmon and analyzing these reports to figure out any performance issues
- Configuring NFS on the servers, working with NFS mounts and related issues
- Configuring NIM Master, creating resources on NIM to have network installation on clients
- 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
- LPAR operations including scheduling operations, troubleshooting activation errors, configuring and using system profiles, and activating and shutting down partitions, Power on/off partitions
- Create partitions, partition profiles, and system profiles, activate partitions, and Schedule operations for partitions, dynamic operations for adding, moving, and removing memory, processor resources, and I/O slots
- Installation, configuration and disk management
- Analyzing log files, checking error report and taking pro-active steps
- Using alternate disk installation method when upgrading or installing TL or ML on AIX Operating
- User and password administration, OS Hardening and working with security related settings
- Installing Quick Fixes such as APAR’s PTF’s as when required
- Working with Network File systems - Configuration, troubleshooting network shared issues
- Daily health checks and keeps track of change records
- Scheduling jobs using crontab – editing, removing and checking cron logs
- Attending daily issues such as filesystem management, housekeeping, checking disk usages etc
- Plan and implement system upgrades, patches, software installations, hardware additions
- Stay current with technical developments in the area of expertise
- Interacting with other teams such as DB team and Web team to solve and fix any related issues
- Daily, weekly backups, running system backup using mksysb, Volume group backups with savevg
- Disk and volume management AIX LVM
- Replacing faulty physical volumes from rootvg or other user defined volume group
- Dynamically add, remove and move resources in the LPARs
- Dedicated and shared processors, logical processor, processing unit, and allocation of processing power from the shared processor pool etc
- VIO Server operations, creating virtual adapters and configuring ethernet or LUNs to LPARs and performing other troubleshooting techniques
- Client: TCS
Education
B. Tech -
ECE
Skills
- Oracle Database Management
- AIX Operating System Administration
- LVM Management
- LPAR and DLPAR Operations
- SAP Application Management
- TSM Application Management
- VIOS Administration
- HMC Server Management
- Storage Management (V5000, LUNs)
- Security Updates (Vulnerability Fixes)
- Kernel Upgrades
- Firmware Upgrades
- HACMP Management
- Oracle administration
- Tape library management
- AIX system administration
- Monitoring tools
- Filesystem management
- Patch management
- Network configuration
- Disaster recovery
- LVM management
- Shell scripting
- Software installation
- NIM server management
- HACMP cluster management
Certification
IBM Certified System p Administrator
Traininganddevelopment
Completed extensive training in Linux and Microsoft Azure fundamentals.
Timeline
AIX Administrator
Saint Gobain India Private Limited
02.2022 - Current
AIX Administrator
Iscribe Software Solutions Private Limited
12.2019 - 01.2022
B. Tech -
ECE
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