Skills Profile:

• 10 years of experience in Linux Redhat 5/6, SUSE Linux 10/11 , Solaris 9/10 , AIX 5.3/6.1/7.1 and VMware Administration and Server Support.
• Experience on migrations and conversions of AIX and Linux servers from Physical to virtual and virtual to virtual.
• Ability to perform Patch Management, Service Pack Upgrades on Linux, Solaris and AIX.
• Installation and configuration of Samba Server on Solaris, Linux.
• Installation, Configuration and management of Sun Servers with RAID Technologies.
• Ability to support the server with the full efficiency and dedication utilizing skills.
• Extensive knowledge on LVM Volume Groups, Logical Volumes and File systems creation, management and troubleshooting.
• Experienced with installation, support, configuration and maintenance of Redhat Linux, SUSE Linux, AIX and Windows 2003/2008 Operating System.
• Experienced with Virtualization technological such as XEN, VMware ESX and ESXi servers 4.0 and 5.1.
• RDBMS installation and support including Oracle, SQL Server, MySQL and use of SQL in various contexts
• Experience in Server build using PXE-Boot and kick start Process on multiple servers.
• Installation of patches, Security fixes, packages on Linux, AIX and Windows NT/2000 Servers.
• Administration of Storage Area Networks SAN , EMC Clarion, EMC Symmetric, Hitachi data systems and HP EVA.
• Excellent ability in writing in shell scripting Korn, Bash .
• Worked with Backup Team to Configure the Master and Client Backup servers Using VERITAS Net Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio.
• Installation of NFS, FTP, DNS, NIS, Sendmail, Postfix and HTTP on Linux Operating
• Configure a workstation as a client to NIS and LDAP.
• Implementing local backup and disaster recovery.
• Strong experience in file access permissions.
• Configuration of local and network printers and basic troubleshooting.
• Monitoring the performance of servers using nmon, top, topas, vmstat and iostat.
• Creating /removing swap space, checking swap space usage and increase/decrease if required.
• Remediating the servers by disabling the then active but unsecured daemons and services.
• Experience of working in Data centers with 24X7 Production and On-Call Environments.
• Experience in helpdesk management, desktop pc support troubleshooting and supervising desktop pc technicians.
• Coordinating with Vendors for any critical hardware problems and driving the issue to resolution.
• Excellent communication interpersonal skills. Proven strength in troubleshooting, problem solving, coordination, analysis and a proven track record of success

Technical Skills:

Operating Systems AIX 5.2/5.3/6.1/7.1, SUSE Linux SLES 10/11, Red Hat 5/6, Windows 2003/2008/XP, Solaris 9/10

Servers Sun Enterprise servers: E450, E250, Sun SPARC Enterprise M4000 Server, M5000 Server, IBM Bladecenter, IBM pSeries, IBM xSeries, HP Gen7 and Gen8, Dell, Cisco

Applications IBM Websphere, MQSeries, AMQ, Weblogic, Apache, Geronimo, IBM HTTP Server, Netscape, topend, tomcat, Portal, Message Broker, DataPower, Connexus

Storage IBM N-series, IBM DS3200, NAS, EMC Clarion, TSM

Networking Communication Protocols TCP/IP, HTTP/HTTPS, ftp, sftp, telnet, SSH, VLAN, Nortel Switches, CISCO switches

Alerting Technologies BMC Remedy, Remedy 7, Nagios

Shell Scripting Korn, Bash

Virtualization High Availability XEN, VMware, VIOS, LPAR, HACMP, DRBD, Pacemaker

Databases DB2, Informix 9/10/11, Oracle 7/8, SQL Server 6.5/7

Programming Languages C/C , HTML, XML, COBOL, FORTRAN

Other Tools Tivoli Performance Viewer, VERITAS Volume Manager, putty, MS Word, MS Excel, MS Visio, MS Project, MS access

Professional Experience:

Confidential

UNIX/Linux System Administrator

• Production support for 6000 servers with SuSE Linux Enterprise servers and IBM Hardware.
• Working with DRBD and Pacemaker cluster tools.
• Configuring and supporting virtual servers by using Xen hypervisor.
• Encryptions of file system and raw devices in Linux with Vormetric encryption software, register and unregister to the appliances for encryption and decryption.
• Configuration, implementation and administration of clustered servers on Linux environment by using pacemaker.
• Configuring, Maintaining of NAS and SAN storage.
• Working for migrations Linux physical to virtual, virtual to virtual.
• Working on AIX to Linux conversions.
• Migrating data between storage arrays and internal and external disk.
• Adding storage and creating raw devices in Linux servers for configuring databases Informix and oracle.
• Trouble shooting the issues with virtual and physical networks pertaining to OS and hypervisor.
• Resolving STONITH errors in pacemaker clusters and adding resource monitors to trigger STONITH.
• Managing servers in cluster after migrations through shell script.
• Involved in resolving Split-brain issues with DRBD, ensuring data security and enabling data replication.
• Resolving and creating Tickets related to migrations, conversions via BMC Remedy ticketing tool.

Confidential

UNIX System Administrator

Responsibilities: -

• System administration, maintenance and support for 1600 servers with Solaris, Linux and HP-UX Operating System.
• Application design, development and implementation according to operational standards SDLC .
• Developed automated solutions for product support that includes developing managing the deployment architecture for the application.
• Configuration of LVM Logical Volume Manager to manage volume group, logical and physical partitions and importing new physical volumes.
• Patching of RHEL5 servers for EMC Powerpath Upgrade for VMAX migration.
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 5.0.
• Documented the standard procedure for installation and deployment of VMAX Migration and logical volume manager.
• Installation, configuration, support and security implementation on following services: DHCP, SSH, SCP.
• Managed and upgraded UNIX's server services such as Bind DNS.
• Responsible for setting cron jobs on the servers.
• Configuration and administration of Web Apache , DHCP and FTP Servers in Linux and Solaris servers.
• Configuration and administration of NFS and Samba in Linux.
• Maintained and monitored all of company's servers' operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• User administration on Sun Solaris and RHEL systems, HP-UX machines, management archiving.
• Installations of HP Open view, monitoring tool, in more than 300 servers.
• Attended calls related to customer queries and complaints, offered solutions to them.
• Worked with monitoring tools such as Nagios and HP Openview.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers and with vendors for hardware related issues.
• Supported the backup environments running VERITAS Net Backup 6.5.
• Decommissioning of the old servers and keeping track or decommissioned and new servers using inventory list.
• Handling problems or requirements as per the ticket Request Tracker created.
• Participated in on-call rotation to provide 24X7 technical supports
• Maintaining the Remedy tool, which is ticketing tool, reviewing the ticket complexity and assigning it to proper technical SA based on their technical skill set.
• Review the ticket description and segment the tickets into the various buckets based on complexity
• Ensuring high and critical severity work is assigned immediately to senior above resources
• Defining the batch process, which will ensure to get the same kind of tickets into a batch and getting assigned to the Admin to have quick resolution.
• Implementing hand off rules document the same in hand off tracker from one shift to another shift to have better hand shake and that ensures proper handover.
• Report weekly dispatch effectiveness metrics to the pool management and dispatch lead
• Conduct analysis to improve metric performance continually
• Pull daily measurements for tracking performance and quality of the Pool
• Update the visual performance board s for the team and report to the team issues of concern within the daily cadence
• Measure and refine segmentation of complexity and batching rules for improved efficiency over time
• Working with all the dispatchers and quality teams across RDC to standardize dispatch methods to manage multiple pools and gain additional scale.
• Coordinating across the levels in the pool from technical skill level and managers
• Actively participating in continual improvement from process standpoint.
• Contribute to defect prevention activities in the pool in coordination with DA's
• Conducting daily pool huddles and raising issues / concerns / ideas / initiatives / highlights / appreciation's in the pool
• Supporting the pool during Standard Assessments from dispatch component stand point
• Conduct dispatch watch coach self-assessments and improve the score from the last review
• Ensuring all the documents are getting updated with version history and maintain them in central location such as TR.

Confidential

UNIX System Administrator

Responsibilities: -

• Level 2 UNIX System Administration for supporting Sun Solaris 9/10, RHEL 5, SUSE Linux 9/10 with VERITAS Volume Manager 4.1 and Windows 2003/2008 operating systems.
• Install, configure and troubleshoot Virtualization technologies such as XEN, Pacemaker, DRBD VMware, LPAR, and VIOS.
• Install and troubleshoot middleware applications such as IBM Websphere, MQSeries, AMQ, Weblogic, Apache, Geronimo, Message Broker and Connexus on UNIX servers.
• Monitor systems CPU, memory and disk utilization and network statistics using Wire Shark technology.
• Implementing RAID 0, 1, 5 using VERITAS Volume Manager.
• Systems administration, maintenance and monitoring various day-to-day operations.
• Processes administration and management like monitoring, start/stop/kill various processes/sub process.
• File System administration and management like monitoring various logs, file system sizes
• User administration and management like add change and delete.
• User profiles, security authorizations etc.
• Maintaining and changing file systems disk assignments using meta disk
• Installation/Upgrade, System Startup System Shutdown as needed.
• Monitor System Performance Parameters using nmon, iostat, and vmstat and fine-tuning.
• Customized the user CDE environments and user profiles.
• Scheduled various regular, periodic, futures, queue tasks by using crontab, at.
• Resolved system errors and crashes, disk space problems, huge file sizes, file system errors.
• Administration and trouble shooting skills on Disks File Systems, Users Groups.
• Documented various regular administrative tasks and backup procedures etc.
• Working knowledge in services like Rlogin, Telnet, FTP, X-Window System etc.
• Monitor bad user logins and unauthorized users.
• Created New Slices, New File Systems, Mounting File Systems, Unmounting File Systems and Huge Slices using Daisy Chains
• Install VERITAS clustering on WebSphere server.
• Perform FSCK on the corrupted file systems in AIX and Linux servers.
• Perform Nightly backups on UNIX AIX/Linux and Windows server using TSM V5.3/5.4.
• Write shell scripts Korn, Perl, BASH for automation purpose.
• Configure TCP/IP network for the public network and backup network.
• Work with LVM, Disk mirroring, RAID, Disaster Recovery on UNIX servers.
• Configure LUNs on NetApp and IBM DS3200 storage.
• Provide 24X7 supports on pager rotation and third shift basis remotely for all the stores.
• Develop internal website on Linux server and create/review/update documentation upon request using html coding.

Confidential

System Admin Technical Support Executive

Responsibilities: -

• Supporting users through email, on call and troubleshooting.
• Carry out regular routine preventative maintenance schedule on servers.
• Monitor and analyze servers and resolve any problems, maintain systems reporting, tuning
• Maintaining integrity of security with the use of group policies across domains.
• Creating and managing Organizational Units, Groups and users.
• Maintaining inventory of all components including systems and other hardware.
• Maintaining user's data backup by creating particular user folder in File Server and applying security permission on folders.
• Time to time dressing of the cables and patch cords.
• To maintain all active components on the network such as the Switches, Hubs, Firewall, Audio codes.
• Involved in Second level troubles shooting.