SUMMARY:

• Over 10 years years of experience in IT Industry as a Unix/Linux administrator. Team - oriented Cloud engineer in Confidential 's Cloud Managed Services (CMS) with experience in system administration, managing server infrastructures and datacenter operations across multiple platforms (Unix/Linux).
• Responsibilities also include PAAS offerings on top of Confidential Softlayer offering where gap between pure IAAS and managed services was closed.
• Expert- level knowledge of Red Hat Enterprise Linux on Amazon EC2 and other services in the AWS cloud infrastructure such as VPC, S3, Route53, IAAS, PAAS and SAAS.
• Supported Confidential 's Cloud skills in the areas of Cloud Engines (Web Portal, Content, CMDB, Provisioning toolstack), Hypervisors, Managed services for OS.
• Think I should give timHands on experience in development of utilities using Shell scripting to automate processes. Strong perseverance and diligence towards attaining challenging goals and possess good communication skills and quick learning ability.
• Extensive experience in various types of Unix and Linux operating systems - SUN SOLARIS(8,9,10,11) .REDHAT Enterprise (RHEL 6.x, 7.x), CENTOS 4.x,5.x, SUSE Linux and HP-UX. Use Solaris jumpstart & Linux kickstart to build both x86 64 and SPARC physical servers.
• Experience in implementing Logical Volume Management (LVM), Solaris Volume Manager (SVM) on Linux and Solaris servers.
• Experience in server Virtualization technologies like Solaris Zones (Containers); LDOMS and Linux KVM. Involved in the building of Oracle RAC nodes running on both Solaris & Solaris & Linux machines. System administration on EMC Clariion, Symmetrix DMX & VMAX arrays. Implemented and completed Switch & Storage Migration activities in EMC SAN platform. Configuring and maintaining Sendmail and Internet Mail Services.
• Working with business to help resolve FTP, SFTP, SSH, Open SSH, password less connectivity, Sudo access related issues.
• Proficient in configuration and maintenance of Symantec (Veritas) Cluster Server (VCS), failover test of VCS service groups and Linux High Availability Clustering.
• Installed and configured UNIX servers as TSM client using Confidential Tivoli Storage Manager 5.3/5.4,6.1.
• Expert in installing backup software on servers using Netbackup 6.5.Troubleshooting any server hardware related issues for servers and storage, coordinate with vendor support to fix it.Weekly On call rotation in a 24/7 global platform support team.
• Handling Sev1 and Sev2 tickets during on call.

TECHNICAL SKILLS:

Cloud & SAAS Platforms: CMS (Cloud managed services), AWS

Hardware: SUN SPARC Enterprise M4000, T5240, T2000, Sun fire V240, V445, 6800, 420R, E4800, E25K. HP ProLiant DL380, DL580 and DL785 and BL460C. HP 9000 Super dome, rp7410, rp5470, rp3440, rx8620 and rx8640, HP Integrity rx2800.

Operating Systems: Linux (Red Hat 6.2, 7, 7.1, 7.3, 8, 9), Red Hat enterprise Linux AS 2.1, 3.0, 4.0, 5.0, 6.0, SUSE Enterprise Linux 10.0, 11.0, Centos (5.x,6.x), Sun Solaris ( 2.x/6/7/8/9/10, AIX 4.3, 5.2, 5.3) and Windows (2007 server, NT 4.0, XP).

High Availability: VCS and VERITAS CFS.

Applications: Apache, Tomcat, JBOSS, Oracle 8i/9i/10g/11g R2/GRID/ASM

Data Replication: EMC SRDF

Storage: EMC Clariion, Symmetrix DMX, Vmax, Netapp, EVA, XP128, XP1024 and XP12000

Volume Management: VXVM and LVM

WORK EXPERIENCE:

Confidential, Piscataway, NJ

Sr. Linux/Cloud SME

Responsibilities:

• Responsible for Confidential Enterprise IAAS Cloud platform (CMS) spreading across 20 data centers globally.
• Managed multi-tier clients for Confidential 's Cloud skills in the areas of Cloud Engines (Web Portal, Content, CMDB, Provisioning toolstack), Hypervisors.
• Managed hardware, operating system, database and EWB, ERP applications in a single customizable set of services.
• Helped speed provisioning of complex enterprise workloads, including SAP, SAP HANA and Oracle.
• Deployed multiple infrastructures appropriate for specific workloads, such as customer relationship management (CRM), enterprise resource planning (ERP) or financials.
• Used LDAP based authentication via SASGUI to connect to customer's VMs.
• Worked on day to day issues like investigating high cpu,memory issues using tools like nmon. Involved in resolving issues with server RAID,cachecade, storcli issues, slow speed/throughput/bandwidth after network changes.
• Used Disaster Recovery methods like rsync to sync Primary or the Production Server and the DR site.
• Helping monitoring team to install and configure ITM agents. Also Installed and configured TAD4D agent.
• Monitored print queues and installed/configured printers and reported any errors to PDL's and DPE's.
• Supported Confidential System x3950 X6, X5 servers and Lenovo System.
• Checked patch applicability on the servers. Deployed bronze,silver or gold patches from the repository depending on customer's contract with Confidential . Upgraded Kernel,firmware on customer Linux VM s.
• Monitoring all the modules of the VMware tools, monitors any change in OS kernel, Take action on reconfiguring and restarting VMware tools if found to be not working.
• Adding new disks and expanding the file systems using LVM to help application team with high file system issues on the customer's VM s.
• Supported SAP HANA servers. SAP HANA servers were bare metal servers hosting GPFS cluster running SuSE linux servers.
• Upgraded GPFS on SuSE Linux (11.2,11.3) SAP HANA machine from 4.1.1-2/4.1.1-3 to 4.1.1-7/4.1.1-8.

UNIX SME

Confidential, Jersey City

Responsibilities:

• I/O fencing implementation and quarterly Failover Test on GLOSS Production servers; Manage BFS( Confidential Financial Solution) network equipment@ Confidential DataCenter. Converting UFS to ZFS file systems; VTOC remediation.
• The Solaris systems have had both MPxIO and DMP installed which were no longer necessary. Symantec (VERITAS) reviewed our environment via vxexplorer, the recommendation was to move these systems to DMP only as a best practice.
• Setup NTP & SNMP on XSCF/ILOM. Building new physical intel based Linux server to host APPIA production and failover servers; Convert from physical servers to virtual servers. Install OS Kernel patches on Solaris 10; SuSE Linux(10.x, 11.x) and RHEL (5.x,6.x) machines; firmware upgrades.
• Worked with vendors like Symantec, Oracle and Confidential .Set up VCS NFS on Unix servers. Tasks included CPU & Memory Expansion; Cut down Shared MQ licensing by reducing core counts. Wrote Shell script for out of sync mirroring to list the drives that are not in “okay” mode.
• Setting up shared memory for Sybase users on Unix servers; Expanding Veritas (vxfs) file systems requested by application teams; Enable FTP/SFTP access for Unix users; adding persistent routes etc.
• Administration of WebMethods platform/components (Integration Server, Trading Networks, Broker, MWS, Optimize etc)

Sr. Unix/Linux Admin

Confidential, Hightstown, NJ

Responsibilities:

• My role in the project included working closely with the release manager and project manager to build, configure, and test servers prior to each migration event for a datacenter migration.
• Task included building, administration and management of RHN Satellite servers.
• Deployment of RedHat-based environment (RHEL 4 & 5) with PXE + kickstart.
• Installation and administration of KVM Hypervisor on RHEL 5 and 6.
• Involved in the global virtualization project of data centers.
• Deployment, configuration and customization of ESX and vCenter servers; Manage and maintain150 Virtual Machines.
• Create and clone additional VM as per client's requirements.
• Implementation experience with all high availability features of VI3 including VMotion, HA, Virtual SMP, DRS, Vswitch design, advanced performance troubleshooting, command line utilities, working knowledge of the VMFS file system, creating clones, images and templates, resource allocation, resource pools, and system monitoring.
• Ability to implement VMWare's Virtual Switch technology; port aggregation, NIC teaming /bonding, and VLAN trunking.

Sr. UNIX Systems Administrator

Confidential, Piscataway, NJ

Responsibilities:

• Linux System administrator with experience provisioning and troubleshooting infrastructure issues related to hardware, operating system, network and storage.Used Jumpstart/Kickstart to build servers (Solaris/Linux).
• Manage security, including basic firewall and SELinux configuration.
• Extensive experience supporting Oracle (Solaris) boxes and SUN Hardware.
• Responsible for supporting Unix servers connected to SAN( EMC CX700, CX480, CX320 and CX380).
• Applied patches on all Linux Boxes from common repository using RPM and RHN.
• Worked on Solaris MPxIO, EMC Power Path configuration for SAN redundancy and involved in power path upgrades.
• Performed RHEL 5, 6 installations. Used pre-configured kickstart file configured by anaconda; including configuring the Kickstart file and troubleshoot various GRUB (boot-loader) related issues.
• Responsible for operational tasks like disk space cleanup, performance tuning, kernel tuning.
• Troubleshoot Network issues with systems. Setup link aggregation and IPMP on Solaris hosts. Add static routes to resolve communication between application servers.
• Used Perl, Bash and Korn scripts to generate CPU, memory load on the UNIX servers.
• Performed virtualization of Solaris servers using Zones and Containers. Created and installed LDOMs which include Controller Domain (Host Domain or Primary Domain) and applied latest firmware level installed on the system to ensure the hardware and hypervisor can communicate correctly.
• Configuring the Cloud Storage Library and supporting direct deduplication to Cloud ; deduplication to Cloud on secondary copies and deduplication using Cloud gateway
• Installed KVM (Kernel Virtual Manager) Hypervisor and created guest VMs.Used tools as virt-viewer and virt-manager to connect locally to the hypervisor.
• Implementation of EBS R12 with Oracle 10g RAC database on Dell x86 64 servers and Linux
• Platform.
• Designed and implemented sftp, ftp, SSH on UNIX servers.
• Syncing time on UNIX hosts with NTP server.
• Setup raid on systems disks using SVM.
• Replace disks in case of failure. Troubleshoot hardware issues. Upgraded memory and CPU with assistance from hardware vendors like Oracle, HP, Symantec.
• Added Netback agents and modified bp.conf files to communicate with media servers.
• Configured file systems for installation of Oracle instances. Worked with DBA team during pre and post Database build & support. Troubleshoot Oracle DB related OS issues.
• Build VCS clusters. Configure service groups. Test failover.
• Applied Oracle recommended patch clusters and VERITAS patches.
• Deployed new firmware to system.
• Monitored UNIX server for CPU Utilization, Memory Utilization, and Disk Utilization and tuned the UNIX servers and suggested solutions to the Application teams/Business.

UNIX Systems Administrator

Confidential, Jersey City, NJ

Responsibilities:

• Lead role in providing 24 x 7 Platforms support for around 4000 UNIX boxes Solaris, Linux moving to the new data center. Building and deployment of Investment &Advisory (I&A) platform systems for Data Center migration. Taking the server build plan created by the Architect team and perform server builds for various classes of serversincluding OS, patches, middleware and tools. Ensure that the server builds are done accurately and help troubleshoot issues in conjunction with I&A Architect and Application Development teams.
• Worked with various Business Units & support teams for the pre-migration requirements: Project Management, Proximity Services, Network, and Storage Design, Monitoring and application team.
• Help resolve latency issues between the data centers with the networking team.
• Provide data protection, recovery and business continuity; test and validate disaster recovery and business continuity methods in UNIX environment.
• Worked with Storage team for data replication/migration between two and more Symmetrix arrays using Symmetrix Remote Data Facility(SRDF). Providing emcgrabs to storage team and coordinate in VMAX migration projects in the new data center.
• Mounting the NFS shares on the UNIX boxes provided by NAS/Netapp team.
• Set console access for different hardware. Setting ilO for HP DL class servers and ALOM/iLOM/XSCF for baseboard management control for SUN/Oracle servers. Avocent DSView is used for servers which do not have any of the above baseboard management option.
• Tasks includes working with Site-Ops in racking and stacking servers, datacenter equipment and Ethernet /Fiber cable management, tape backups, monitoring datacenter environmental and day to day operations within datacenter infrastructure.
• OAT (Operational Acceptance Testing) on the hardware moved to the new data center.
• Decommission the end of life, end of warranty legacy hardware from the data centers and update Asset management systems reflecting the same.
• Worked on virtualization techniques as ESX and ESXi (4.1 5.1);VMware Vcenter ;P2V Migration: VMware Converter . Solaris 10 zones/containers and LDOMS Oracle VM Server for SPARC .
• Building and configuring HP UX Containers on HP Integrity boxes.
• Day to day system admin duties which included but not limited to working on OS remediation of servers. Involved in Firmware/ OS/ VERITAS upgrade; working with vendor and Field Engineers on various hardware issues. Performed new server builds and configuration, OS and application upgrades, and patch installation.
• Created RAID disk groups, volumes, volume groups using VERITAS Volume Manager.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers (core dump and log file analysis); setting up password less connectivity for application users.
• Troubleshooting and server support in 24/7 production environments.

Production Support Engineer

Confidential, St. Louis, Missouri

Responsibilities:

• Configuration, Maintenance and Supporting 800+ Servers Linux and Sun Solaris 2.8/2.9 2.10 servers.
• Back end applications were deployed on the Sun Servers and Weblogic (Weblogic 8.1) Servers.
• Installation and Configuration of various VERITAS products (VERITAS Volume Manager 3.5/4.1, VERITAS Cluster 2/ 3, VERITAS Netbackup 6. 0); checking VERITAS prerequisite packages, Installation of Maintenance Pack 2 (MP2) for VxVMs 4.1 and VxFS 4.1 ASL, Hitachi Support for VxVM MP2.
• Installation of packages/patches and checking the integrity of the installed packages on Solaris/Linux/HP-UX servers.
• Providing Tier2 (Production Support) to Unix Developers and Unix Test Engineers to troubleshoot various issues and bugs after the Post releases.
• Installation and Configuration of Weblogic (8.1/9.2) on Solaris and Linux machines.
• Worked with DBA team to migrate Oracle from 9i to 10G.
• Task included software upgrades (release management), patch management and deploying the new modules into production that were tested in test environments (ST, UAT etc).
• Task included performance tuning, capacity planning, and tuning Application /OS and hardware for optimal performance.