SUMMARY

• 11+ Years of Experience in the field of Linux and AIX System Administration with DevOps tools.
• Experience in installing, configuration, support, upgrading and patching Linux servers using Red hat Satellite Server and also worked on registering different client servers and involved in building channels and pushing the packages to master Red hat Satellite Server.
• Installing and configuring various network services as DNS, DHCP, NFS, Apache server, NIS, SSH and SMTP protocols.
• MonitoredLinuxserver for CPU Utilization, Memory Utilization, and Disk utilization for performance monitoring.
• Experience in Configuration, Backup, Monitoringsystemperformance,Systemand Network Security ofLinuxservices.
• Having experience in install, upgrade and configuring Open SSH and SSL.
• Worked with other teammate Installing and Configuring Veritas Cluster Services for High Availability of Application creating users with root's privileges and also users with limited root's privileges.
• Used Puppet tool for managing system configurations.
• Having good experience in Red Hat Directory server
• Performed installation, patching and upgrading software and hardware packages including its dependencies using YUM, RPM and RH Satellite.
• Having good experience with Shell and Perl scripting.
• Having good experience on Engineering, analysis and development of Linux endpoint security agents and providing solutions.
• Working on User management, Identity Access Management like adding, removing and modifying user access.
• Knowledge with VMware and Linux virtualization.
• Having experience on Oracle Solaris, VCS Administration and Veritas Storage
• Good knowledge on CDOM, LDOMs, and Zones.
• Provided architecture assistance on Linux security initiatives.
• Having good troubleshooting skills and finding the Root Cause Analysis for Sev1
• Experience in automation tools to deploy across all servers.
• Network and infrastructure monitoring by using Nagios.
• Set up NFS and Samba File sharing on Linux and Windows.
• Set up user and group login ID's, network configuration, password, resolving permissions issues.
• SSH private and public key generation and copying to client server.
• Troubleshooting System and Network related issues.
• Having good experience on providing services to other IT Security teams.
• Experience in Installation, configuration of AIX IBM pSeries Machines of5L, 6.1 & 7.1
• Experience in High Availability (Power HA & System Mirror) Cluster Configuration & Management.
• Experience in Virtualization (VIO) configuration & Administration
• Installing and configuring VIO Servers, building LPAR clients and sharing IO devices to LPARs
• Having strong knowledge on AIX LVM Experience in creating VG’s, LV’s and File systems on AIX and LINUX and disks to VG’s.
• Expert in Power HA migrations from different version and in different methods
• Experience in build, performance, troubleshooting and MaintainingAIXand security Patching
• Installed, Supported Application and middleware WebSphere Application Server, IBM HTTP/ Apache Web Servers in AIX and LINUX environment for various projects.
• Supporting Java and Database applications, upgraded Java versions on AIX and Linux OS.
• Supporting and managing IBM pSeries servers (P6 & P7) using HMC Versions 8.3.0/8.4.0
• Managing the hardware using the HMC and webSM consoles & Upgrading of Hardware management console (HMC)
• Use NIM servers to manage new LPAR builds for AIX
• Working knowledge on different POWER hardware P4, P5, p6, p7 ( p6 520, p6 550, p6 570, P710, P740, P780, P795) with LPAR technology
• Performing administration on NPIV, by assigning the Virtual Fiber scsi adapters and assigning the LUNs
• Experience in Firmware upgrade to the managed system.
• LPM administration and performing the operational acceptance test in between the managed system to avoid any point of failures.
• Experience in Monitoring & Performance tuning of AIX server for the latency issues reported by the servers.
• Experience in User Administration like creating users, setting password, changing the attributes to the users.
• 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.
• Physical memory & CPU upgrade for the managed system as per the requirement
• Extensive experience in Multipath and Bonding in Linux and AIX.
• Installed and Managed EMC SAN devices using EMC Power ptah and SRDF on Linux and AIX servers.
• Expert in Power HA migrations from different version and in different methods.
• Experience Migrating AIX servers from 5.3 to 6.1 and 6.1 to 7.1 versions.
• Experience in DR drill for all the applications in the environment to ensure the data replication from the production.
• Upgrade and install Powerpath version 5.5 on clients
• Experience in Amazon Web Services(AWS) - Design and Architecture, System Operations
• Working with AWS EC2, EBS, ELB, VPC, Security Groups, S3, Route 53, Glacier.
• AWS Instance Pricing, design and architecting Cloud Infrastructure to meet application requirements.
• AWS Instance configuration, application installation and high availability designing with Auto Scaling and Instance deployments across Availability Zones.
• Having good experience on Azure and Winter servers.
• Having good experience on Chef, Ansible, puppet and Git
• Installed and Implemented CHEF configuration management system.
• Setup the Chef Nodes, Chef Client, Chef Server, and Chef Workstation, worked on Bootstrapping the Nodes
• Performed all Linux operating system, disk management and patch management configurations, on Linux instances in AWS
• Experience in Installation, configuration of TSM
• Experience with zones, zfs, ABE/Snapshots on Solaris 10/11
• Working with 3rd party tools like ITM, SCM, TSM, to ensure the events are notified to avoid outages on the productions servers.
• Experience in Incident, Change and Problem Management.
• Have the desire and capability of learning new Technologies.

TECHNICAL SKILLS

Operating Systems: AIX 5.3, 6.1 7.1, RHEL 6.1, 7.0 Solaris 8, 9 &10

Cluster: HACMP 5.3, 5.4, 6.1, VCS

Virtualization: VIO, LPAR, DLPAR, HMC.

Disaster Recovery: Business Continuity Exercise

Network: NIM, NFS, TCP/IP, DHCP, SNMP, SMTP

Web Server: IBM HTTP Server 7/8/8.5, iPlanet Web Server 5.1/6.0, IIS 4.0/5.0, and Apache

Hardware: IBM RS/6000, IBM p-Series (595, 670, 695, 770, 780, 795, 812, and 822), IBM PC’s and Intel based Systems

Storage: EMC & IBM SAN

Scripting: Shell, Perl & Python

Backup: TSM

PROFESSIONAL EXPERIENCE

Confidential - Atlanta, GA

Unix Administrator

Responsibilities:

• Installing, configuration, support, upgrading and patching Linux servers using Red hat Satellite Server and also worked on registering different client servers and involved in building channels and pushing the packages to master Red hat Satellite Server
• Creating users with root's privileges and also users with limited root's privileges.
• Used Puppet tool for managing system configurations.
• Performed installation, patching and upgrading software and hardware packages including its dependencies using YUM, RPM.
• Network and infrastructure monitoring by using Nagios.
• Set up NFS and Samba File sharing on Linux and Windows.
• Installed and configured Red Hat Directory Server to user identity and application, settings, user profiles, group data, policies, and access control information.
• Set up user and group login ID's, network configuration, password, resolving permissions issues.
• SSH private and public key generation and copying to client server.
• Troubleshooting System and Network related issues.
• Installing the patches and bringing up the AIX to up to date patches.
• Working with File systems - creating, removing, changes such as increasing and decreasing the size of the file systems.
• Install and configure Red Hat Linux systems - Physical and Virtual.
• Experience with configuring and managing Red Hat Satellite.
• Having experience on Oracle Solaris, VCS Administration and Veritas Storage
• Good knowledge on CDOM, LDOMs, and Zones.
• Installed and Implemented CHEF configuration management system.
• Setup the Chef Nodes, Chef Client, Chef Server, and Chef Workstation, worked on Bootstrapping the Nodes
• Development of cookbooks on nodes and running Chef client on them in a Chef environment.
• Involved in the setup of Chef Servers, work stations, nodes and bootstrapping new infrastructure chef nodes for configuration management.
• Converting production support scripts of Chef Recipes.
• Developing Ruby code for Chef Recipes.
• Develop and maintain installation and configuration procedures.
• Maintain system standards and documentation.
• Having good experience on providing services to other IT Security teams.
• Research and recommend innovative, and where possible automated approaches for system administration tasks.
• Working on User management, Identity Access Management like adding, removing and modifying user access.
• Identify approaches that leverage our resources and provide economies of scale.
• Repair and recover from hardware or software failures.
• Upgrading Power Broker versions on servers.
• Provided architecture assistance on Linux security initiatives.
• Installing TSM software, monitoring the daily backup’s and troubleshooting if any issues.
• NFS Administration, exporting file systems, mounting exported file systems, working nfs daemons and fixing any mounting issues.
• Gathering NMON report & analyzing them with NMON analyzer
• Generating MUP file on the servers & uploading IBM site to check the microcode levels.
• Disk Storage Management in AIX - Logical and Physical Volume management, configuring disks, working with volume groups, logical volumes, and physical volumes.
• Worked on Hardware Amber attention issues on servers & resolving them.
• Mirroring volumes groups and logical volumes.
• Creating system dump and increasing the sysdump size.
• Writing script to automate mksysb backup and copy to NIM server.
• Working on the scripts for automates jobs as per the requests.
• Writing the scripts for application team requirements.
• Day to day server management activities, LVM management, User Management and Software installations.
• HACMP - Monitoring servers, Starting and Stopping Cluster Services, moving resource groups across the nodes, increasing file system in cluster file system
• Upgrading firmware on Fiber Channel Adapters and replacing them.
• Working with SAN paths upgrade and installation.
• Mapping LUN's to VIO client & taking the VIO backup.
• New server build & configuring them.
• Having good experience on Engineering, analysis and development of Linux endpoint security agents and providing solutions.
• AWS Instance configuration, application installation and high availability designing with Auto Scaling and Instance deployments across Availability Zones.
• Working with DevOps tools like Maven, Ansible, puppet and Chef
• Performed all Linux operating system, disk management and patch management configurations, on Linux instances in AWS
• Working with IBM on software & hardware issues, generating snaps to them for analysis
• Dynamically add, remove and move resources in the LPARs.
• HACMP Cluster Configuration & Failover testing and verification, Cluster Synchronization, performing HACMP health checks - looking Confidential cluster statistics, observing resource group status.
• Participated on DR activity.
• Mapping LUN's to VIO client & taking the VIO backup.
• New server build & configuring them.
• Configuring FC Cards Confidential OS end.
• Connecting FC Cable from Fiber Switch to Servers.
• Mapping LUN’s to AIX/Solaris/Windows 2003/VMware Servers.
• Increasing the SAN space and Adding the HDD to Arrays.
• Creating snapshots. Monitoring Storage Status & Performance using
• IBM DS Manager Client SW.
• Health checks on SAN and Storage environment.
• Allocation of Luns according to the request from the server teams.
• Handling Storage Reclamation Projects for LUN De-allocation.
• Working on New Server builds projects.
• Handled Service requests for LUN creation, Mapping.
• Securing and Hardening RHEL Production systems by applying security using different tools available in RHEL and configuring /setting/enforcing/removing/restricting different conf files/folders/users etc.
• Administering Disks (Creating, Mount/Unmount, File System Integrity, Backup/Restore) the File Sys-tems.

Confidential

Unix Administrator

Responsibilities:

• Installing, configuration, support, upgrading and patching Linux servers using Red hat Satellite Server and also worked on registering different client servers and involved in building channels and pushing the packages to master Red hat Satellite Server
• Creating users with root's privileges and also users with limited root's privileges.
• Used Puppet tool for managing system configurations.
• Performed installation, patching and upgrading software and hardware packages including its dependencies using YUM, RPM.
• Network and infrastructure monitoring by using Nagios.
• Set up NFS and Samba File sharing on Linux and Windows.
• Set up user and group login ID's, network configuration, password, resolving permissions issues.
• SSH private and public key generation and copying to client server.
• Troubleshooting System and Network related issues.
• Installed and configured Red Hat Directory Server to user identity and application, settings, user profiles, group data, policies, and access control information.
• Having good experience on providing services to other IT Security teams.
• Installing the patches and bringing up the AIX servers to up to date patches.
• Working with File systems - creating, removing, changes such as increasing and decreasing the size of the file systems.
• Upgrading Power Broker versions on servers.
• Installing TSM software, monitoring the daily backup’s and troubleshooting if any issues.
• NFS Administration, exporting file systems, mounting exported file systems, working nfs daemons and fixing any mounting issues.
• Working on User management, Identity Access Management like adding, removing and modifying user access.
• Having good experience on Engineering, analysis and development of Linux endpoint security agents and providing solutions.
• Gathering NMON report & analyzing them with NMON analyzer
• Generating MUP file on the servers & uploading IBM site to check the microcode levels.
• Disk Storage Management in AIX - Logical and Physical Volume management, configuring disks, working with volume groups, logical volumes, and physical volumes.
• Worked on Hardware Amber attention issues on servers & resolving them.
• Mirroring volumes groups and logical volumes.
• Provided architecture assistance on Linux security initiatives.
• Creating system dump and increasing the sysdump size.
• Day to day server management activities, LVM management, User Management and Software installations.
• HACMP - Monitoring servers, Starting and Stopping Cluster Services, moving resource groups across the nodes, increasing file system in cluster file system
• Upgrading firmware on Fiber Channel Adapters and replacing them.
• Working with SAN paths upgrade and installation.
• Mapping LUN's to VIO client & taking the VIO backup.
• New server build & configuring them.
• Working with IBM on software & hardware issues, generating snaps to them for analysis
• Dynamically add, remove and move resources in the LPARs.
• HACMP Cluster Configuration & Failover testing and verification, Cluster Synchronization, performing HACMP health checks - looking Confidential cluster statistics, observing resource group status.
• Participated on DR activity.
• Mapping LUN's to VIO client & taking the VIO backup.
• New server build & configuring them.
• Configuring FC Cards Confidential OS end.
• Connecting FC Cable from Fiber Switch to Servers.
• Mapping LUN’s to AIX/Solaris/Windows 2003/VMware Servers.
• Increasing the SAN space and Adding the HDD to Arrays.
• Creating snapshots. Monitoring Storage Status & Performance using
• IBM DS Manager Client SW.
• Health checks on SAN and Storage environment.
• Allocation of Luns according to the request from the server teams.
• Handling Storage Reclamation Projects for LUN De-allocation.
• Working on New Server builds projects.
• Handled Service requests for LUN creation, Mapping.
• Securing and Hardening RHEL Production systems by applying security using different tools available in RHEL and configuring /setting/enforcing/removing/restricting different conf files/folders/users etc.
• Administering Disks (Creating, Mount/Unmount, File System Integrity, Backup/Restore) the File Sys-tems.
• Performance monitoring and improvement by setting kernel parameters /using different tools available in RHEL
• Configurations of Servers: DHCP, DNS, NFS, SAMBA, FTP, SENDMAIL, NIS, HTTP
• Installing Red Hat Network Satellite Server
• RHN Satellite Server Administration
• Red Hat Network Client Configuration

Confidential

Unix Administrator

Responsibilities:

• Installing, configuration, support, upgrading and patching Linux servers using Red hat Satellite Server and also worked on registering different client servers and involved in building channels and pushing the packages to master Red hat Satellite Server
• Creating users with root's privileges and also users with limited root's privileges.
• Used Puppet tool for managing system configurations.
• Performed installation, patching and upgrading software and hardware packages including its dependencies using YUM, RPM.
• Network and infrastructure monitoring by using Nagios.
• Set up NFS and Samba File sharing on Linux and Windows.
• Set up user and group login ID's, network configuration, password, resolving permissions issues.
• SSH private and public key generation and copying to client server.
• Troubleshooting System and Network related issues.
• Installing the patches and bringing up the AIX servers to up to date patches.
• Rectifying the problems after patch up gradation if any.
• Working with IBM CE to replace faulty disk.
• Upgrading firmware on Fibre Channel Adapters and replacing them.
• Working with SAN paths upgrade and installation.
• Working with IBM on software & hardware issues, generating sanps to them for analysis
• Troubleshooting PEM related alarms and clearing them.
• Working with File systems - creating, removing, changes such as increasing and decreasing the size of the file systems.
• NFS Administration, exporting file systems, mounting exported file systems, working nfs daemons and fixing any mounting issues.
• Day to day server management activities, LVM management, User Management and Software installations.
• Disk Storage Management in AIX - Logical and Physical Volume management, configuring disks, working with volume groups, logical volumes, and physical volumes.
• Working with paging spaces - creation, increase, decrease paging spaces as per the requirement.
• Troubleshooting booting related issues, creating boot records, working with system maintenance mode, accessing rootvg in system maintenance mode, recovering root password.
• Mirroring volumes groups and logical volumes.
• Creating system dump and increasing the sysdump size.
• Working on ftp tool, cron job schedule tools, managing log files, errpt, daily management activities.
• HACMP - Monitoring servers, Starting and Stopping Cluster Services, moving resource groups across the nodes, increasing file system in cluster file system
• Defining shared volume groups and working on different operations such as creating shared file systems, increase or decrease file system sizes, concurrent disk for disk heart beat etc.,
• Creating Volume Group, Logical volumes and file systems in both standalone and HA environment.
• Experience in Firmware upgrade to the managed system.
• LPM administration and performing the operational acceptance test in between the managed system to avoid any point of failures.
• Experience in Monitoring & Performance tuning of AIX server for the latency issues reported by the servers.
• Experience in User Administration like creating users, setting password, changing the attributes to the users.
• 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.
• Hands on experience with PowerVM.
• Creating AIX Lpars on POWER5,6,7 & 8 hardware managing the LPARS with Power VM.
• POWERVM tasks like creating VIOS and LPARs, DLpar(virtual adapter, Memory, CPU), Micro partitioning, VLAN Tagging and NPIV.
• IBM Power VM experience including setup and management of VIO Servers and partitions.
• Running HMC scanners to pull out all the information related to software/hardware
• Recovering the old WWN’s using HMC command line
• Adding managed servers to HMC, HMC administration, creating and modifying partition profiles
• Worked on HMC & Firmware Upgradation activity.
• Implemented Active memory expansion on AIX logical partitions.

Confidential

Unix Administrator

Responsibilities:

• Installing, configuration, support, upgrading and patching Linux servers using Red hat Satellite Server and also worked on registering different client servers and involved in building channels and pushing the packages to master Red hat Satellite Server
• Creating users with root's privileges and also users with limited root's privileges.
• Used Puppet tool for managing system configurations.
• Performed installation, patching and upgrading software and hardware packages including its dependencies using YUM, RPM.
• Network and infrastructure monitoring by using Nagios.
• Set up NFS and Samba File sharing on Linux and Windows.
• Set up user and group login ID's, network configuration, password, resolving permissions issues.
• SSH private and public key generation and copying to client server.
• Troubleshooting System and Network related issues.
• Installing the patches and bringing up the AIX servers to up to date patches.
• Co- coordinating with the Delivery Project Executives (DPE) in getting the Down time from customer to perform the changes.
• Rectifying the problems after patch up gradation if any.
• Creating and removing the User accounts. Working on account management tasks like password resets, giving sudo privileges to the users etc.
• Working with File systems - creating, removing, changes such as increasing and decreasing the size of the file systems.
• NFS Administration, exporting file systems, mounting exported file systems, working nfs daemons and fixing any mounting issues.
• Day to day server management activities, LVM management, User Management and Software installations.
• Disk Storage Management in AIX - Logical and Physical Volume management, configuring disks, working with volume groups, logical volumes, and physical volumes.
• Working with paging spaces – creation, increase, decrease paging spaces as per the requirement.
• Troubleshooting booting related issues, creating boot records, working with system maintenance mode, accessing rootvg in system maintenance mode, recovering root password.
• Mirroring volumes groups and logical volumes.
• Creating system dump and increasing the sysdump size.
• Working on ftp tool, cron job schedule tools, managing log files, errpt, daily management activities.
• HACMP - Monitoring servers, Starting and Stopping Cluster Services, moving resource groups across the nodes, increasing file system in cluster file system
• HACMP Cluster configuration, plan, design HACMP cluster nodes, Network configuration. shared file systems, increase or decrease file system sizes, concurrent disk for disk heart beat etc.,
• Creating Volume Group, Logical volumes and file systems in both standalone and HA environment.
• LPAR operations, scheduling operations, 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.
• Dynamically add, remove and move resources in the LPARs.