SUMMARY:

• Over 8 years of IT experience specialized in UNIX System Administration working on server - based operating system; kernel configurations on Redhat Linux, Centos, Ubuntu 12.x/13.x and Trouble Shooting System & Performance Issues, Package Management.
• Expertise in the installation, configuration, and administration of Windows server 2003/2008/2012 , VMware ESX 4.0, 4.1, 5.x and 6.x VMware vCenter server, Hyper-V, System Center 2012 R2 and other software products.
• Build, configure and deploy VMs and templates. Completed Physical-to- Virtual (P2V) and Virtual-to- Virtual (V2V) migration of Windows NT, 2000, 2003, 2008, 2012 as well as Linux servers from VMware, Hyper-V, Xen and legacy hardware.
• Experienced in deploying and maintaining business critical technology VMware Site Recovery Manager (SRM) across versions 6.0, 5.x and 4.x. vMotion of VMs with-in and across the clusters (Storage and resource vMotion), Cold and hot migrations as part of rebalancing the environment.
• Extensive experience in installation, configuration and administration of Redhat Enterprise Linux and physical and virtual machines for versions 5.x and 6.x.
• Automate manual tasks using PowerShell, python and PowerCLI.
• Experience with vRealize Suite and APIs to create automated workflows and the delivery of full management application stacks.
• Expert in building Redhat Linux physical and virtual servers & migrating and/or upgrading Linux servers from one OS release to another.
• Proficient in Linux Utilities: KICKSTART, SSH, FTP, AUTOFS, Quota Management, User Management, Process Management, Memory Management, and Text processing tools, Log Management, Package Management, Disk Management and Swap Partition/Files Management.
• Expertise in file system concepts like LVM, SVM, VxVM. Creating new file systems, increasing and decreasing file systems, mounting file systems, un-mounting file systems and troubleshooting Disk space issues and proficient in SAN / NAS technologies.
• Package management using RPM, satellite management and YUM tools.
• Experience working in NFS/NAS, Storage Area Networks (SAN), SSA disk storage environment. Extensively performed SAN Migration.
• Experienced with Storage Administration like EMCSAN Administration. Worked on EMC disk storage to allocate disk space, configuring LUNS on server side, Backup maintenance through TSM using Tape libraries.
• Experience in administrating ESXi servers and applying security patches to the ESXi servers.
• Expert in ESXi servers using the Vsphere client and Vcenter for managing the multiple ESXi servers and performing the vmotion.
• Expert in troubleshooting the Linux server’s, resolving the boot issues using rescue methods.
• Experience in using various network protocols like HTTP, UDP, POP, FTP, TCP/IP, and SMTP.
• Worked on Creating, Upgrading and Maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Experience in Installing, configuring and maintaining apache/tomcat, samba & sendmail, Web Sphere Application Servers and configuring splunk agent on Unix platforms.
• Experience in writing Shell scripts using ksh, bash, perl, for process automation of databases, applications, backup and scheduling to reduce both human intervention and man hours.
• Worked on Linux based systems administration skills in a Cloud Computing and Virtualized environment for AWS
• Expertise in AWS, experience in implementing new AWS systems and migration of existing systems to AWS
• Experience supporting 24*7 production computing environments by providing on-call and weekend support.

TECHNICAL SKILLS:

Operating Systems: RHEL 7.x,6.x/5.x/4.x/3.x, DATA ONTAP 7.3 and 8.1versions, IBM AIX 5.x, Windows 98/2000/XP/VISTA, VMWARE ESX/ESXi. AWS (Cloud)

VMware: VMware Certified Professional 6.5 Datacenter Virtualization #328657076 ESX Server 3.x, 4.x, 5.x, 6.x: Design, Installation, configuration, and troubleshooting. VMware vSphere/vCenter Server: Design, installation, and implementation including Licensing, HA/DRS Clusters, Networking including VLAN tagging, FC/iSCSI/FCoE configuration, VM creation and management including Resource Pooling. vMotion (Storage/Resource, with-in and across cluster, Right-sizing, rebalancing clusters) vRealize Suite: vRealize Automation (vRA/vCAC), vRealize Orchestrator (vRO/vCO), vRealize Operations Manager, vRealize Log Insight

Hardware: HPE ProLiant DL380 Gen9/Gen8, EMC clarion cx series, Tape Libraries - Sun StorEdge L20/L40/L60, L180 and Storagetek s 9840 EMC DMX 800 and 1000 IBM DS4K, DS5K and DS8K, SVC and Storwize V7000

Languages: Shell scripting, PERL, Python

Networking: TCP/IP, DNS, NFS, NIS, SSH, DHCP, HTTP, CIFS, Cisco Routers / Switches and LAN

Databases: SQL Server 2012/2008/2005/2000 , MS-Access, Oracle7.x/8.x/9i/10i.

Web Technologies: Lotus Domino 5 / 6, Apache 2.0, Tomcat, WebLogic 8.1/10, WebSphere, JBoss, IPlanet, IIS, IHS.

PROFESSIONAL EXPERIENCE:

Confidential - Raritan, NJ

Sr VMware/RHEL Administrator

Responsibilities:

• Design, deployment, maintenance of virtualization infrastructure utilizing HP rackmount servers, Dell EqualLogic and Compellent SAN storage technologies.
• Performed VMware vSphere 6.x installation, configuration and firmware updates on Dell Blade Servers, PowerEdge R610, R720, HP ProLiant Servers, Cisco UCS B-Series and C-Series Servers.
• Worked on upgrading ESX/ESXi servers from 4.x/5.x to 6.x. vCenter was also upgraded from 5.x to vCenter Server 6.x and few other components such as SRM, datastores and VMs also upgraded.
• Capacity management of global data centers and their colo’s. vMotion of VMs across and with-in the clusters/PODs as part of rebalancing the environment.
• Experience with Vblock based Converged Infrastructure Administration with VMware vCenter, Cisco UCS manager, UIM and Cisco Fabric Manager.
• Experience working in vSphere 6.0 includes providing host access via protocol endpoints, creating and managing VVol storage containers and VVol VM’s.
• Worked with the VMware and opened artifacts to come up with solutions for the issues at the client place.
• Setup replication between the storage arrays at different sites.
• Developed automated solutions to install, monitor the performance/scalability of the environment using PowerShell and PowerCLI.
• Installed patches and updates on ESX Hosts and Virtual machines using VMware Update Manager.
• Configure and maintain Windows servers 2008R2/2012R2 and related infrastructure systems for the company.
• Involved in automating bare-metal/VM provisioning using Foreman and configuration management using Puppet.
• Extensive experience working with VMware Virtual Volumes (VVols) implementation for Dell EqualLogic/Compellent. Involved with VVols from the design phase until it releases to the customer.
• Provided L2 level support for RHEL, & VMware tickets.
• Experience with vSphere custom plugins such as Dell Virtual Storage Manager (VSM) which can be deployed in vCenter Server as an appliance to manage storage.
• Recommended and implemented systems design modifications as part of project completion to ensure compliance.
• Involved in the deployment of business-critical technology VMware SRM (Site Recovery Manager).
• Tested and documented the process for SRM implementation. Involved in SRA software testing in the labs as well.
• Extensive use of VMware vCloud Director for IaaS, SaaS, PaaS
• Design and deployed build automation workflows utilizing vCenter Orchestrator (vCO), PowerCLI, and scripting in the vMA.
• Worked with vSphere API’s using java in eclipse environment and created custom PowerCLI scripts to automate manual tasks.
• Installed, configured and Administered all LINUX servers, includes the design and selection of relevant hardware to Support the installation/upgrades of Red Hat (5/6/7), CentOS 5/6, Ubuntu operating systems
• Upgrades on Linux operating systems and hardware maintenance on HP and DELL servers like increasing memory, disk, replacing failed hardware.
• Installed and maintain puppet-based configuration management systems, configure and managing LVM on Linux servers using tools like lvextend, lvcreate, resize2fs etc
• Performed daily housekeeping functions, such as establishing new accounts, creating and resetting passwords, developing, scripts, performing system backups and recovery, and installing software patches and updates.
• Monitoring and debugging performance issues on different OS Linux (RHEL & Centos).
• Creating and managing new LUNs (ISCSI) and assigned to Windows and UNIX hosts, configuring snapshots and scheduling them accordingly, providing Data protection using Snapshot management.
• Participate in installing and configuring of UNIX/Linux based Oracle 10g products.
• Experience on configuring Asynchronous, Synchronous Snap Mirror and configuring Snap Vault.
• Converting snap vault destination copy into snap mirror copy on client request or for disaster recovery, managing takeover and giveback for Active/Active Configuration.
• HP ProLiant Gen8/Gen9 hardware management using ILO console
• Scanning the newly assigned LUNs to the serves and assigning them to volume group and increasing the filesystem using Redhat volume manager
• Configuration and Administration of DNS, NIS, NIS+, NFS, DHCP, FTP, Samba Servers and clients. Security layers like SSL, SSH, HTTPS, SFTP.
• Working on Identity Management services by setting up the Roles and IAM policies and logging IAM events with the cloudtrail. Working experience with the S3 storage like permissions, object versioning and webhosting with the S3
• Worked on utilizing Virtual Private Cloud, building a VPC with the security and NAT and extending the VPC access to the on premises datacenter
• Created AMI’s and ELB with the high availability and auto-scaling and creating the load balancer for the EC2 instances

Environment: Linux 7.x/6.x/5.x, VMware ESX 4.x, 5.x and 6.x VMware vCenter server, Oracle 10g Linux, KickStart, Shell Script, Autosys, LDAP, EMC Storage SAN, NetApp, jboss, Websphere, Amazon cloud & Chef configuration manager.

Confidential, Deerfield, IL

Sr Linux/VMware Administrator

Responsibilities:

• Installed, configured and Administrated all LINUX servers, including the design and selection of relevant hardware to support the installation/upgrades of Red Hat (5/6), CentOS 5/6, Ubuntu operating systems.
• Installed RHEL Operating systems, apply patches, manages filesystems, monitor performance of VMs.
• Build more than 1200 VMs in vBlock environment.
• Installed and configured DNS, DHCP, FTP, and NFS in RHEL.
• Responsible for Operational support and incident management of Linux and Windows servers.
• Administration and support of homogeneous production and development server infrastructure of multiple flavors of Linux.
• Performed Building up of servers, deployment activities, and environment support including installation, configuration diagnostics, planning and upgrades.
• Responsible for design and implementation of IT infrastructure such as data center, servers, storage, backup, and virtualization.
• Setup of full networking services and protocols on UNIX/Linux, including NIS/NFS, DNS, SSH, DHCP, NIDS, FTP, TCP/IP, ARP, Applications and print servers to insure optimal networking and printing functionality.
• Worked on FTP servers for sending and receiving files between local and remote servers.
• Managed DNS server. Updated forward and reverse lookup files for all the new machines added in the domain. Created reverse lookup files for the new subnets added into the network.
• Configure Quotas for particular qtree and users on NetApp Filer and Supporting NetApp storage infrastructure for global customers.
• Physical Storage Management: Assigning disk ownership, RAID-DP, Disk sanitization, De-duplication etc.
• Developed Cron jobs and Shell Scripts (Shell, Python) for automating administration tasks like file system management, process management, backup and restore.
• Support for Linux/Unix systems administration, operational support and problem resolution for server systems. Created shared NFS file system, mounting and un-mounting NFS server, NFS client on remote machine, sharing remote file folder, starting &Stopping the NFS services.
• Responsible for Installation, configuration, Maintenance, Deployments, Update, Monitoring, performance tuning on Linux.
• Designing System Requirements, Designing Storage requirements, Configuration Management/Change control/Release management.
• Experienced in monitoring and debug performance issues on different OS Linux (RHEL & Centos).
• Created Storage Group, Zones, volume groups, and different RAID’s using EMC Utility and responsible for backup and recovery using NetApps Snapshot.
• Repaired bad spots on the disk using repair and analyze. Used format and fdisk/Parted for disk configuration and disk crash recovery.
• Wrote Python and Shell scripts to monitor installed enterprise applications and to get information from the logs and database in the required format and other daily activities and jobs.
• Providing 24*7 on-call support on rotation basis and Handling High priority incidents through bridge calls.

Environment: Linux 7.x/6.x/5.x, Oracle 10g, SUN Servers, SUN Fires, Linux, Jump Start, Shell Script, Autosys, LDAP, EMC Storage SAN, VMware servers, jboss, Websphere.

Confidential

Sr. UNIX Administrator

Responsibilities:

• Responsible for supporting Linux System Administrator customers with RHEL/CentOS/Ubuntu operating systems questions and problems via telephone, FAX, and email.
• To provide ongoing support in systems management and administration of LINUX/UNIX in global-scale environment.
• Provisioning and support of Production, QA and Developers environment.
• Deployment of UNIX /Linux, VERITAS and Build of various environments.
• Provide rotational on-call Tier III support responsibilities. Production Support: Provided 24x7 supports for various divisions within the Company and resolve all production issues in a high pressure and time sensitive environment.
• Issues related to NFS, NIS, LVM, Grub corruption, configuration & maintenance of RAID (level 0,1,5), troubleshooting VERITAS Volume Management and cluster server environment.
• Developing scripts in PERL and SHELL to automate the process.
• Built more than 1000 servers from scratch and applied relevant patches on existing servers.
• Built 25+ Red Hat Linux 8.0 servers from scratch and provide 24*7 production support.
• Planned, designed and implemented 4 Node Veritas Cluster on E6800. Troubleshoot Veritas Cluster & issues which arose because of different cluster versions 3.2 & 3.5.
• Researched the data base for known problems or tested the customers’ problem on a test system in the same environment. Aided customer in resolving their problem using the tools in the Linux OS or from the command line.
• Responsible for configuration of AIX servers, for maximum performance in a production environment, including kernel tuning and compiling, configuring systems with various raid, strip and mirroring configurations.
• Performing System Storage management/LVM tasks like creating volume groups, PV’s, LV’s and jfs/jfs2 File systems, mirroring, VG’s, LV’s and mounting File systems.
• Managing the user environment by adding, modifying and removing user accounts from the environment and limiting access to appropriate nodes.
• Test and install various patches (Fix Packs) on the servers to solve the problems encountered by the applications running on the servers.
• Migrate application and other software modifications from the development environment to production, Used NIM to install AIX and do OS upgrades.
• Optimized performance by tuning Unix OS, kernel, memory, I/O, Database, Applications and Networks.
• Installed, configured and supported RAID 0, RAID 1, RAID 0+1, and RAID 5 on SAN arrays.
• Troubleshoot all hardware and software issues for Sun Enterprise Servers.
• Decommissioned small and obsolete servers and consolidated them into one large server.
• Installed EMC Power Path and involved in Storage Area Network (SAN) administration
• AIX 5.x and 6.x MPIO support for multi-path Fiber Channel storage subsystems, as well as AIX servers configured with multiple Fiber Channel (FC) Host Bus Adapters (HBA) on a Storage Area Network (SAN).
• Planned, Documented and implemented Disaster Recovery policies.
• Used Remedy Tool in Production environment which strictly complied with Problem/Change Management policies of the organization.
• Developed shell scripts for automating routine day-to-day tasks, management reports, set up alerts for server resources utilization (CPU, memory, disks, etc.). Also wrote scripts for auto install and sun cluster. Wrote Shell scripts for monitoring Unix servers.

Environment: Red Hat Linux 5.x/, Dell Power Edge 1800/1850/2850 servers, Intel servers, Sun Enterprise servers, Dell PCs & Compaq PCs, VERITAS Volume Manager, VERITAS Netback up 5.0, Sybase 11.5.1, Perl Scripting, NIS, NFS, LDAP server, Weblogic, Apache Tomcat, EMC Storage SAN.

Confidential

UNIX Administrator

Responsibilities:

• Day - to-day administration on Sun Solaris, RHEL 4/5 which includes Installation, upgrade & loading patch management & packages.
• Assist with overall technology strategy and operational standards for the Unix domains. Manage problem tickets and service request queues, responding to monitoring alerts, execution of change controls, routine & preventative maintenance, performance tuning and emergency troubleshooting & incident support.
• Conduct project planning and status reporting. Independently setup and administer DNS, DHCP and DDNS (Dynamic DNS) using ISC software, including DNS security using TSIG, chroot-BIND
• Setup and administer VERITAS Volume Manager for NAS, SAN. Setup and administer VERITAS NetBackup & Cluster Server (VCS) for risk mitigation and disaster recovery.
• Setup Solaris Custom Jumpstart server and clients and implement Jumpstart installation.
• Worked with Telnet, FTP, TCP/IP, iLink, rlogin, used to inter-operate hosts.
• Installing and configuring oracle 10g and coordinating with the oracle team in maintaining the database.
• Troubleshooting of Logical Volume manager. Configuration of Red Hat Clustering, Installed & Configured HP DL380 G6, DL380 G7, Dl 580 G4, Dell r710.
• Supported Disk Volume Management creating volumes with LVM.
• Setup LVM. Install OS packages and patches. System security management. Worked on OS upgrade plan for Solaris on development and production servers.
• Installation, administration of VIO Server and VIO client LPAR’s, Upgrading VIO Servers and AIX Servers, Upgrading AIX TL from AIX 5.3 TL8 to AIX 5.3 TL9 and from 5.4 to 6.1.
• Designed, installed and configured HACMP cluster environment, with cascading and mutual takeover, Expertise in Troubleshooting on High Availability Clusters (HACMP).
• Administration of multiple AIX machines, AIX clusters, and SP nodes from any client platform through WebSM.
• Good LVM skills, used LVM, created VGs, LVs, and disk mirroring.
• Responsible for Installing Security fixes and APAR’s in Servers, installation and configuration of NIM master server and clients.
• Coordinating with application and database team for troubleshooting the application or Database outages and coordinating with SAN team for allocation of LUN’s in order to increase the filesystem space.
• Configuration and administration of Fiber Card Adapter’s and handling AIX part of SAN Configuration of VIO server and VIO clients from Hardware Management Console.
• Upgrading HMC version and Firmware.

Environment: RHEL 5.x/4.x/3.x, VERITAS NetBackup, Sun E250, E450, Sun E3000, SunFire v440/v480/v490, Solaris 8/9, SDS 4.1, 4.2 (Solstice Disksuite), VERITAS volume manager 3.5, Websphere.