SUMMARY

• More than 9 years of experience in all aspects of Linux/Unix System Administration, Server Builds and Application support of Red Hat Linux, Sun Solaris, IBM AIX, HP - UX, Jboss,Apache,Weblogic,Websphere,DB2,Oracle,puppet and VMware.
• Installation, Upgradation, configuration and Capacity Planning of Unix/Linux infrastructure for mid to large data centers.
• Monitoring and administrating of Red Hat Linux on Enterprise class servers and Sun Solaris Servers for operating systems, patches, packages, hardware, firmware drivers etc.
• Over 1 year of expertise in performing Disaster Recovery Tests.
• Over 3 years of expertise in Building and supporting environments consisting Testing, Contingency,Production and Disaster Recovery servers
• Over 2.5 years experience involving Virtualization environment consisting of VMware Infrastructure planning and design. Experience involves VMware ESX 3.X Network Architecture design of a cost effective solution to migrate the physical infrastructure to ESX 3.5. Experience includes managing application migrations and P2V (physical to virtual) server migrations. Experience includes utilizing Virtual Centers virtual import tool to import virtual machines from physical servers. Experience includes implementing iSCSI SAN for backend storage on virtual environment.
• Experiance in using hardware ( HP SmartAgent) and software RAID (0/1/5) installation, configuration of volume management using Veritas Volume Manager (3.5/4.x/5.0) and Logical Volume Manager.
• Extensively worked on Veritas File System (3.x/4.x/5.0), Veritas Cluster (3.x/4.x), Veritas Volume Manager and Logical Volume Manager for Disk management, Mirroring.
• Expertise with Storage disk array/enterprise storage systems such as EMC Vmax, Symmetrix DMX, clarion storage arrays.
• Experience in planning, documenting and supporting high availability, data replication, business persistence, fail-over and fail-back processes.
• Experience in using BladeLogic, SiteMinder, Introscope wily, Gomez, Event coordinator, ControlM GUI.
• Expertise in systems performance monitoring & tuning: CPU, Disk, Memory, Network Utilization.
• Experience in setting up network environment using UFS,ZFS,NFS, NIS, DNS and DHCP.
• Proficient in Backup utilities, Restoring using Veritas NetBackup.
• Proficient in design, implementation and testing of LDAP directory infrastructures.
• Good experience in Shell scripting.
• Experience in migration of Physical to physical and physical to virtual servers..
• Experience working on LAN/WAN and TCP/IP Protocols (Telnet, FTP. etc).

TECHNICAL SKILLS

Operating Systems: RedHat LINUX Release 3.x, 4.x, 5.x, SUSE 8/9/10, Solaris release 2.10/2.9/2.8/2.7/2.6 , AIX 5.0/5.x/6.1, HP - Unix 10.20, 11.0, 11i, Windows 2003/2008.

Clustering: Red hat Clustering and Veritas Clustering.

Hardware: Dell PowerEdge servers X86, HP ProLiant BL680c G5 server,Sun Enterprise 420,420R, 450, 3500, 4500, 6500 Servers, Sunfire 4800 & 6800, N- Class Servers, Sun Sparc work stations, AMD64 ABI X86,, HP 9000 servers, IBM R6000, Pseries, Cisco Routers and Switches

Software and App servers.: Solstice Disk Suite, Checkpoint Firewall, PIX Firewall, VERITAS Volume Manager, VERITAS Net backup, Clear case, Samba, DHCP, NFS, NIS, DNS, DHCP, Samba, Send mail, CVS, Apache Web Server, BEA Web Logic 8.1, Web sphere, Sun One I planet Web Servers, HP Smart Array

Backup Tools: Veritas Net Backup, Legato Netbackup and ufsdump

Backup Devices: Sun StoreEDGE Tape Libraries L9000 & L1000, EMC SAN storage boxes Dell Power Vault 128T, DLT & DDS Tape Drives

Databases: Oracle 8/9i/10,11G,DB2 and MySQL

Shells: Bourn shell, Korn shell, C shell & Perl Scripting

PROFESSIONAL EXPERIENCE

Confidential, Minneapolis, MN

Sr. Unix/Linux Administrator

Responsibilities:

• Involved in removing the security vulnerabilities on RHEL,SUSE linux
• Patching of SUSE 11 and RHEL servers
• Upgrading the java version.
• Upgrading the SUSE 10 SP3 to SP4
• Creating the nfs clients list in nfs server
• Co-ordinating with different teams in remediating the security Vulnerabilities.
• Interration of Unix/Linux servers with AD
• Building of VMware Guest and ESXi Hosts
• Managing infrastructure environment with puppet.
• Repo management for patching RHEL and SUSE servers.
• Performing security audits and remediating the Vulnerabilities.
• Remediation of FTP on ESP agents and made secuse ssh protocol to transfer files using automated scripts.
• Performed automated jobs to do patching, selinux, FTP, Vulnerability, Inventory backup, post build tasks using scripting.
• Building of Zones on Solaris OS.
• Building and manazing zpool on ZFS file system .
• Performed the automation using CHEF Configuration Management.

Confidential, NJ

Sr. Unix/Linux Administrator

Responsibilities:

• Involved in consolidation and Migration of Redhat and Debian Linux, Oracle Solaris Machines from one datacenter to other.
• Troubleshooting OS (Solaris, Linux), VCS and VXVM issues.
• Troubleshooting network connectivity issues involving routing, firewall between the servers of old and new datacenter after migration.
• Troubleshoot hardware configurations and issues.
• Installing and configuring the EMC Avamar backup client.
• Configuring and troubleshooting Storage and EMC power path.
• Performed EMC SAN migration for Linux and Solaris Machines involving Oracle RAC,VCS and MySql.
• Administration of Solaris LDOMS, Zones and Containers.
• Administration of Solaris zpool and Zfs.
• Performed performance monitoring and troubleshooting.
• Performed Kernel patching.
• Experience with Micropartitioning.
• Automated regular tasks using bash shell scripting.
• Responsible for Defective Disk replacement and re-establishing the Mirror.
• Performed SAN and NAS Migration for Solaris and Linux Machines from one frame to other frame using emc powerpath.

Environment: Solaris 10, Redhat Linux, Debian Linux, Veritas Cluster Server, Dell PowerEdge, Oracle M3000 & M4000, M5000, T5240, Sun Fire v440, v480 Servers.

Confidential, San Jose, CA

Sr Unix/Linux/Vmware Administrator

Responsibilities:

• Performed EMC SAN migration from Clarion to VMAX.
• Supported cloud environment built on VMware 5.1 version.
• Installation and configuration of Vcenter server 5.1 version
• Creation of clustering between ESX hosts in vmware environment.
• Creation of apt-get mirror setup for centralized repository to perform OS patching, kernel upgrade and release upgrade.
• Creating of RHEL rpm package repository server for Patching.
• Installation of RHEL OS on Standalone servers using kickstart installation.
• Creation of Virtual machines ( RHEL, Ubuntu ) using template and cloning.
• Creation of NFS shared FS, ext4,ext3,ZFS and VXFS.
• Setup of disk based File systems using LVM and VxVM .
• Creation, extension, configuration and maintenance of LVM and VxVM in Solaris and Linux environment.
• Firmware and BIOS upgrade of HBA cards ( Qlogic ) and serial processors.
• Performed DNS changes for IPaddress and hostnames in DNS master server.
• Performed Disaster Recovery for database serevrs on Solaris and Linux OS.
• Performed P2V and V2V migrations using platespin.
• Upgradation and patching of ESX hosts using Update manager.
• Solaris 10-Zones, Creating Zones, ZFS filesystem, Zone administrative commands: zpool, zfs, zonecfg and zoneadm.
• Disk Management, using VERITAS Volume Manager, Logical Volume Management (LVM) and logical partitioning on Solaris
• Setting up server NIC’s (Nic Bonding, IPMP, Link Aggregation).
• Configured and maintened 3 node VCS clustering for High Availability of Oracle Database servers.
• Performance monitoring, performance tuning, Incident management and break fix ticktes.
• Data Center migration.
• Extension of ZFS filesystems on solaris.

Environment: HP Blade serevrs, Dell poweredge, Sunfire, Sun T4, Vmware, cisco Blade serevrs, RHEL 6.X,VCS 5.1, VxVM 5.1, Cent OS, Debian,Ubuntu 10.X, 11.X, 12.X,solaris 10,ZFS,rpool,containers.

Confidential, Redwood City, CA

Senior Unix/Linux Administrator

Responsibilities:

• Supporting infrastructure environment comprising of RHEL 6.2,5.8, CentOS 6.X and Solaris 10.
• Building of Cloud Environment using VMware ESXi 5.1.
• Performed Provisioning of ESXi Host using VMware ESXi 5.1 Versiom.
• Upgrading of Existing ESXi 4.X version of Hosts to ESXi 5.1 Version.
• Creation of Vcenter 5.1 server using windows 2008 and Bring the ESXi Hosts under Vcenter server.
• Performed Installation and support for Ubuntu Linux Desktops.
• Creation,Installation and administration of Red Hat Virtual machines in VMware Environment.
• Performance tuning, troubleshooting and monitoring bottlenecks of network,cpu,memory and Disk.
• Performed installations of OS on RHEL 6.X, CentOS on VMware ESXi 5.1 and Dell Poweredge, Proliant Blade BL and DL series servers using Kickstart.
• Configuration of Network Bonding which include Active/Standby.
• Created, installed,updated softwares using RPMs.
• Knowledge of Hadoop in cluster environment.
• Creation of SAN File System on Red Hat Linux using multipath configuration.
• Performed patching of RHEL and CentOS using yum and Redhat Satellite server.
• Expertise in troubleshooting database servers performance issues and taking care of DBA Activities.
• Developed scripts for automation and monitoring purpose in perl and phython.
• Performance monitoring of Virtual Memory, cpu, system usage in Linux servers using top,vmstat,netstat,iostat,pmap,tcpdump,ethtool,prstat and sar.
• Configuration of Hardware RAID 0,1.

Environment: Dell Poweredge, Optex, SunFire X4100,4200,Vmware ESXi 4.X, ESXi 5.1, Cent OS 6.3, RHEL 6.2,5.X, Active Directory, Vcenter 5.1, JIRA

Confidential, Troy, MI

Sr. UNIX/Linux Admin

Responsibilities:

• Building and supporting environments consisting Testing, Contingency,Production and Disaster Recovery servers.
• Supporting infrastructure environment comprising of RHEL 6.2,5.8,5.6,5.x and Solaris 10.
• Performed OS provisioning using kickstart through BMC Bladelogic.
• Performed patching of RHEL using yum,up2date and BladeLogic.
• Installation, Configuration and upgradation of Redhat Linux 4, 5.X and solaris 10 using BladeLogic.
• Performed Installation, Patching and security audits for RHEl 6/5 using puppet master.
• Virtualization in Cloud Hosting platform using ESX hypervisor of Vsphere 4.X.
• Creation,Installation and administration of Red Hat Virtual machines in VMware Environment.
• Create, extend,reduce and administration of Logical Volume Manager ( LVM ) in RHEL,SUSE and HP UX environment.
• Creation of SAN File System on Red Hat Linux using multipath configuration.
• Migration of Storage ( EMC Symmetrix DMX to Vmax ) in RHEL and HP UX using ( Logical Volume Management Based File System ) and Solaris using ( Veritas File System ).
• Creation of 2 node clustering using Redhat Clustering and Veritas Cluster in Linux and Solaris environment.
• Configuration of Network Bonding which include Active/Standby and Active/Active.
• Configuration and Upgradation EMC powerpath in Linux and Solaris environment.
• Installation of HBA cards ( Emulex and Qlogic ) and upgradation of firmware, BIOS using scli and lputil tools.
• Rebuilding of kernel in RHEL using mkinitrd.
• Performance tuning and troubleshooting bottlenecks of network,cpu,memory and Disk.
• Performance monitoring of Virtual Memory, cpu, system usage in Linux and Solaris servers using top,vmstat,netstat,iostat,pmap,tcpdump,ethtool,prstat and sar.
• Confiuration of Monitoring tools in Linux and Solaris servers.
• Configuration and Administartion of Active Directory ( Vintella ) using windows 2003 Admin tools .
• Create,move,Join,Unjoin and deletion of servers from Active Directory ( AD ) .
• Performed P2V migration using Platespin tool.
• Performed Disaster Recovery in RHEL servers which consists of LVM based FS and Red Hat Clustering.
• Performed Disaster Recovery in RHEL consisting of Veritas Volume Manager and Veritas Clustering.
• Creation and extension of File system in LVM and Veritas Volume Manager in clustered and DR server environment.
• Installation, configuration and adminstration of Jboss,Apache,Weblogic,Tomcat and Websphere.
• Configuration of LAMP environment from scratch.
• Building of Oracle RAC ( Oracle Real Application Clusters ) environment.
• Configuration of raw devices for Oracle Database.
• Creation, initialization, addition of Oracle ASM and FSR devices in multipath environment
• Performance Monitoring and Performance Tuning using Top, prstat, sar, vmstat, ps,iostat.
• Creation of Jumstart and Kickstart configuration for the automatic provision of servers using Bladelogic.
• Installation of Third party tools using RPM packages.
• Installation and configuration of thirty party toosl like Veritas Netbackup, Tivoli Netbackup, power broker, Vintella,autosys,DNT tools etc.
• Configuration of Hardware RAID 0,1 using HP Smart Array.
• Configuration of software RAID 0,1, and 5 on File System.

Environment: RHEL release 3,4,5,6, Dell PowerEdge servers X86, ProLiant DL385 G Series, ProLiant BL25p G Series, ProLiant DL385 G Series, ProLiant DL380 G Series, ProLiant DL380 G5, HP UX 11.X, Solaris 10, EMC clarion, Autosys, sas, VMware ESXi 3.5, VMware Sphere 4.0, VERITAS netbackup, Fujitsu primePower, HP Superdome, HP Blade server, IBM X Seriies etc,BMC BladeLogic

Confidential, Kansas city, MO

Sr. UNIX/Linux Admin

Responsibilities:

• Supported infrastructure environment comprising SUN Solaris 9 and 10, HP-UX 11.X, RHEL 3, 4, 5.3 machines.
• Performed installations of OS on RHEL 5.3 and 5.2 on VMware ESX 3.5 and Proliant Blade BL and DL series servers using Kickstart.
• Migrated VMware ESX 3.5 to VMware Sphere 4 series.
• Performed installations of third party tools like SAS application, Oracle 11g, Unicenter Autosys and VERITAS netbackup 6.X version, BEA WebLogic 10.X
• Upgraded VERITAS netbackup on HP UX, Solaris and RHEL servers to 6.X.
• Upgraded HBA (qLogic card drive) firmware to the latest version depending upon the kernel versions.
• Upgraded EMC Powerpath in support of SAN Migration.
• Troubleshooting the Hardware issues like 20,000xxx errors in RHEL RAC servers.
• Used Simple Network Management Protocol (SNMP) to manage networking.
• Updating the systems by patching ( Solaris,HP UX, Linux ) in regular basis.
• Performed UNIX security audits and Implementing security audits.
• Monitored the servers and applications using HP openview.
• Updating system to the latest released patches.
• Performed backup storage using Tape libraries through HP storage works.
• Performed installations of software packages to install the additional features.
• Extended file systems ( Logical Volume manager) size in production servers.
• Performed SAN Migration on HP UX ( LVM ), RHEL ( LVM )and solaris ( Veritas Volume Manager) servers.
• Experience with LDOMs, zones and containers in Solaris.
• Configured RED Hat Satellite server for upgrading of Linux servers.
• Experience in automation of process using perl, bash and korn scripts.
• Knowledge of RHEV.
• Experience as data center operations .

Environment: HP UX 11.X, Solaris 9, 10, RHEL release 3,4,5, EMC clarion, Autosys, sas, ProLiant BL25p G Series, ProLiant DL385 G Series, ProLiant DL380 G Series, ProLiant DL380 G5, rx7640, rx6600, rp4440, rp5470, rp8400, A500 VMware ESXi 3.5, VMware Sphere 4.0, VERITAS netbackup, Fujitsu primePower, HP Superdome, HP Blade server, Sun servers (V880, V490, V210, V440, V880), SunStorage 7410, AMD64 ABI X86, Dell PowerEdge servers X86

Confidential, Hoffman Estates, IL

Senior Unix/Linux Administrator

Responsibilities:

• 24X7 support in Production and development environments
• Supported Unix/Linux site operations in an Ecommerce environment.
• System administration in a heterogeneous UNIX environment (AIX/Linux/Solaris)
• Supported class monitoring and management tools such as Openview, Open NMS, Wily, Gomez, SiteScope, Netcool, Tivoli, Nagios, Cacti, Introscope-wily.
• Developed complex administration, monitoring and management utilities using Perl, Python and UNIX shells.
• Evaluated, implemented and configured tools that automate and support the operations, administration and management of complex (i.e. multi-tiered, web and UNIX based) applications.
• Deployment of Applications (www.sears.com to www.beta.sears.com) and routing the traffic.
• Troubleshooting application servers (jboss and tomcat), web servers (IBM Web Sphere and apache) and MQ series applications.
• Developed LogServer server application (application logs are moved to a specific server on a daily basis which helps to keep developers out of production box).
• Monitored daily batch jobs and troubleshooting the failed or delayed jobs.
• Installed Red hat Linux on Dell and Enterprise Server 4.0.
• Performed routine system administration tasks such as system monitoring, performance usage, network support, and user support.
• Experience in automation of batch jobs using perl, bash scripts.
• Knowledge of Tivoli storage manager.
• Troubleshooting of java applications issues running on Jboss nodes like memory leakage.
• Performed route configurations within the IRMS.
• Experience with hardware infrastructure like Sun Sparc, X86 ( Intel and AMD ), IBM Pseries, HP superdrome and Blade servers.
• Performed partition using Lpars on AIX.

Environment: Sun High-End Servers (12K), Sunfire T series (T2000/T1000 and entry level Servers, storage arrays and Storage libraries, P595A 38X128, P750,P550, Sun Solaris 9, 8, 7,Red Hat Enterprise Linux, 2.6, AIX 5.3, IBM Web Sphere eCommerce, Jboss 4.0.5,apache and tomcat, Event Coordinator, CA- Introscope wily, Gomez, ControlM, IBM ClearQuest, IBM ClearCase, JIRA,BigBrother, Tivoli storage manager, Oracle 11g, TIBCO, AMD64 ABI X86, Dell PowerEdge servers X86.

Confidential

System Administrator

Responsibilities:

• Supported infrastructure environment comprising SUN Solaris, HP-UX, Linux and IBM - AIX machines.
• Installed, configured and maintained Solaris 10 ( Jumpstart) and Linux ( Kickstart) .
• Experience with zones in solaris 10.
• Administered, maintained Red Hat 4.0 AS, Troubleshooting Hardware, Operating System Application & Network problems and performance issues
• Performed tasks like Backup, Software Management including Patch updates, Documentation, User Management, Network Management etc.
• Used Simple Network Management Protocol (SNMP) to manage networking
• Setting of ZFS on solaris 10.
• User Management like SUDO access.
• Experience as data center operations.
• Day to day maintenance of Veritas cluster Servers.
• Experience in Siebel Installation.
• Configured Disk Volume Management with LVM of HP-UX.
• Installed and removed software packages and patches on Solaris, HP UX and Linux systems.
• Performed software monitoring, installation and troubleshooting
• Performed reorganization of disk partitions, file systems, hard disk addition, memory upgrade, and DAT drive installation.
• Maintained NAS storage.
• Developed scripts for backups using Veritas, ufsdump.
• Coordinated with clients in selecting proper hardware and software according to the departmental needs.
• Installed and configured VERITAS Storage Foundation Suite, Veritas Volume Manager, Veritas cluster and Veritas file system.
• File system tuning, growing, and shrinking with VERITAS File system 3.5/4.x (Vxfs).
• Installed, maintained and troubleshooting NIS, NFS, Automounter and DNS servers
• Monitored system activities, log maintenance, and disk space management.
• Installed and configured LDAP server.
• Knowledge of Tivoli storage manager.
• Servers’ consolidation and virtualization using VMware virtual infrastructure, VMware ESX.
• Supported all hardware diagnostics for SUN SPARC and X86 (intel and AMD ) machines systems.
• RPM (Red Hat Package Manager) packages used for Linux distributions.
• Supervise network monitoring standards, security, disaster/recovery, resource utilization and stability.
• Maintained Database, taking backups from remote servers.
• Used Perl and Shell Scripting extensively.
• Actively Involved at Data Center or Work station.
• Production Support of applications mysql, Tomcat, Apache (authentication, http services).
• Maintained of RAID technologies
• Installed and Configured WebLogic 8.1,TIBCO on various Development and Production Boxes.
• Troubleshooting and maintenance of VERITAS Net Backup(4.5,5.0), Scripts for Daily backup reports, checking drivers status
• Administered, maintained Red Hat 2.1, 3.0 AS, ES, Troubleshooting Hardware, Operating System Application & Network problems and performance issues
• File system management using Logical volume management and Veritas Volume management(3.5,4.1,4.5)

Environment: Sun High-End Servers (12k/15k/25k), Midrange Servers (3800/4800/6800 ) Sunfire T series(T2000/T1000 and entry level Servers, storage arrays and Storage libraries, Sun Solaris 9, 8, 7,Linux, 2.6,Unix, Veritas Volume Manager 4.1, 4.0, 3.5,Solstice disk suite 4.2.1, sun cluster 3.1, Veritas NetBackup4.5,5.0 and 6.0,Apache Server, VMware ESX servers, VMware Virtual Center, GSX servers, Windows ( X86 servers )