Prabhu Senthamilselvan

Senior ConsultantFull Time

• Job Details:Responsibilities • Troubleshooting the issues and provide root cause to the customer • Taking end to end responsibility for the Linux and AIX patching • Automated the AIX and Linux patching with script (500+ servers every month) • Automating the jobs using shell script • Proposed and implemented service improvement plans • Preparing technical documents (Work Instructions) and share with the team • Working on migrating the current Linux environment to AWS environment • Design and deploying cloud infrastructure • Netbackup administration AIX: • Creation of Volume Group, Logical Volumes & File System. • Applying software updates, Patch Management & Performance Monitoring, • Installation and Configuration of HACMP. • Resource Group Monitoring and Movement in HACMP environment. • HACMP file system management such as creating file system and increasing the space of file system. • SP and TL updation in HACMP environment. • GPFS configuration and management • Installing the client OS and maintenance with common configuration using NIM master with lpp_source and spot. • Create mksysb backup in NIM master and restore it in the client. • Mksysb restoration, OS installation and Migration through NIM serer • Logical Partition’s – Creation, Resources allocation to profiles. • Activation / Deactivation of LPAR profiles and Monitoring through Command Line Interface. • Performing DLPAR activities – dynamically adding / moving resources • VIO profile creation and OS installation • Storage allocation in VIO environment using VSCSI and NPIV. • SEA failover configuration in VIO server. • HMC management - HMC critical backup and Server Firmware upgradation through HMC Linux: • Worked on user and group creation, file system creation • VMtools & VM hardware upgrade on Linux VMs • LCC,Firmware and Bios upgrade on Dell servers • kdump configuration • Software package administration with RPM and Tarball • Patching the servers with satellite • Kernel update and tuning • Worked on Vmware environment to build Linux servers • Partition and LVM related activities • Configuring NFS, Xinetd, DNS, NTP and FTP • Configuring static routes and network bonding • Securing through TCP wrappers and iptables (internal firewall) AWS: • Utilized Cloud Watch to monitor resources such as EC2, CPU, Memory, RDS DB services, DynamoDB tables, EBS volumes; to set alarms for notification or automated actions; and to monitor logs for a better understanding and operation of the system • Migrating the current Linux servers to AWS environment • Launch and managing Amazon EC2 and VPC instances • Create AMI images of critical EC2 instances as backup • Utilize Amazon Glacier for archiving data • Cloud Front setup for low latency for fast loading website/web contents experience • Designing and Deploying Highly scalable infrastructure using ELB and Auto Scaling services • Migrating and managing DNS entries in Route53 and various DNS providers • Create and managing VPC, Subnets and Security Groups • Good understanding of ELB, Security groups, NACL, NAT and Route 53. • Created AWS Route53 to route traffic between different regions. • Housekeeping activity based on Trust Advisor • Create and managing buckets and policies in S3 • Created Users and Groups using IAM and assigned individual policies to each group. • Setup and attached EBS volumes to EC2 instances • Setup and managed backup and recovery using snapshot • Up scaling and attaching new EBS volumes VMWare: • Creating VM templates and creating VMs from the template (VM Builds) • Migrating VMs to new host using vMotion and Datastore migration • Create cluster and add host • Taking snapshot of VMs • Adding, Deleting and modifying Storage space for VMs as per requirement. • Modifying CPU cores, Physical Memory and Swap Memory as per client request. • Researching VM performance using VMWare performance tool • Working on VM ballooning related issues and Memory reservation • Performing VM Replication to new Vcenter, V2V Migration and Logical move

Senior Operanals ProfessionalFull Time

• Job Details:Responsibilities • Installing the OS patches and updating the ML/TL as per the requirement • OS Migration and installation of AIX and VIO servers • TSM backup and restore activities • HACMP configuration on new setup • Troubleshooting and fixing HACMP related issues • Resource group management and filesystem management on HACMP • NIM configuration and all NIM related activities • Building new Lpars by creating profile in HMC and OS installation from NIM • DLPAR Activities • HMC activities from both GUI and command line • Configuring virtual scsi adapters and device allocation using VIO server. • SEA failover configuration in VIO server. • VIO server upgrade from 2.1 to 2.2

System AdministratorFull Time

• Job Details:Responsibilities AIX : • Support activities of hardware management. • Case logging with OS Vendor for any Hardware or Software problem. • NFS server and client configuration • LVM management • Working knowledge on Veritas Volume Manager • Patching AIX servers (SP/TL and Firmware upgrade) • HACMP configuration and management • LPAR creation and DLPAR activities • HMC management • NIM configuration and all NIM related activities • Configuring virtual scsi adapters and device allocation using VIO server EMC Storage: • Knowledge on Clarion architecture • Knowledge on creating zoning in san switch • Creating storage group and assigning luns to the hosts from clarion • Knowledge on creating luns, mapping and masking in DMX • Storage migration from DMX to VMax HP-UX: • User Administration and LVM • Installing critical patches and hardware firmware upgradation • Ignite backup through ignite server • OS installation, Migration through ignite server • Working knowledge on Cluster • Working on VM Host, Gust concepts