SUMMARY

• Over 7+ years of experience as UNIX Administration in SUN - SOLARIS (10, 9, 8), RedHat LINUX, SUSE Linux 10/11, CentOS and Windows.
• Proficient in working on Solaris 10 on Sun M5000/T4000, T5200/T2000, Sun V490, E2900, Fire 6900/6800, Sun Fire 25K/15K/12K & all other Sun servers.
• Expertise in administration of SunSolaris andbuilding high end Sun Serversfor production environment.Building Sun serverswithSolaris 10, Jumpstart.
• Strong experience in System Administration, Installation, Upgrading, Patches, Migration, Configuration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (SUN Solaris, Red Hat Linux)Systems.
• Experience withWindows Active Directories, Exchange, and DHCP & DNS configurations.
• Installed/configuredIISfor performance tuning.
• Strong experience on database (Oracle, DB2, SQL, Informix).
• Used IIS creating connections to a backend SQL database.
• Experience in Zone Creation onSolaris 10. Configured and InstalledSolaris zones (containers)using utilities Zonecfg, Zoneadm etc and also worked on the creating branded zones (creating solaris 8/9 on a solaris 10 server).
• Experienced in working with SAN hardware from vendors including Netapp, EMC (Symmetrix and CLARiiON), Hitachi and Sun StorageTek.
• Experienced in maintaining file systems and creatingZFS.
• Involved in complete Administration tasks onUNIX(SUN Solaris,Red Hat Linux) and documentation for the projects executed.
• Installed, monitored and supported Web and Application Servers on Solaris and Linux environments.
• Good knowledge on operating systems architectures.
• Strong technical background inStorage, Disk Management, Logical Volume Management (LVM)and logical partitioning.
• Experience in Creating new file systems, mounting file systems and un mounting file systems, Hands on experience inTivoli Storage Manager (TSM),DiskSuite (SVM).
• Experience in installing theVERITAS, installing and configuring theVeritas cluster server(VCS),Veritas HAusingthe Veritas storage administration(Veritas volume manager, Veritas file systems) for the SAN configuration.
• Experience inHitachi SANStorage administration usingMeta, VxVM.
• Experience in installation and configuration ofWebSphere, Apache, and IPlanet, BEA Web Logic, LDAP, and mail servers.
• Proficient in performingDR tests of UNIX (Solaris & Linux), Oracle, DB2& Sybase databases, Peoplesoft/SAP, FOBOCA, Securities & Trading Apps and whole UNIX infrastructure.R1/R2 mappings, DNS/LAM changes.
• Creating and maintainingusers, profiles, security, rights, disk spaceandprocess monitoring.
• Setup and configured networkTCP/IPonSOLARISincludingRPC connectivity for NFS. Createdmount points for Server directories, and mounted these directories on Solaris Servers.
• Proficient in configuringJumpStartandKickStartservers to initiate installation of Solaris andRedHat Linuxon several machines at once.
• Experience using diagnostic and debugging tools such asDtrace, Strace, trussandTop.
• Worked on group/user administration, startup and shutdown scripts,crontabs, file system maintenance and backup scripting and automation.
• Highly experienced withStorage AdministrationlikeEMC SANAdministration,NetApp, NASAdministration,Veritas NetBackupandLegato.
• Experience working withStorage Area Network (SAN),EMCCLARiiON,EMCSymmetrix DMX, VMware.
• Experience in writingShell scriptsusingksh, bash, and Perl,for process automation of databases, applications, backup and scheduling.
• Experience in Performance monitoring, usage and load of the system, changing kernel parameters for better performance, creating new Slices with format and creating huge Slices with Daisy Chains.
• Expert in setting upSSH, SCP, SFTPconnectivity betweenUNIX hosts.
• Experienced inDNS, NIS, NFS, CIFS, FTP, NIS, Samba Server, LDAP, remote access, security management,and system troubleshooting skills.
• Experience onupgrades of Solaris, Sun Hardware, patches, Veritas S/W. Disaster recovery,Veritas NetBackup, Watchersand alsoOracle & third party software.
• Build and configure complex clustered environments using Solaris 10, Sun Cluster and Veritas Cluster with shared storage configured fromNetapparrays. Measure and analyze host and storage behavior during injected faults.
• Experience with HP Gen 8 blade servers and rack mounted servers.
• Proficient in System Backup and Recovery from tapes usingufsdump, ufsrestore, tar and cpio.
• Experience administering twoAIX HACMPclusters runningAIX 4.3, and 5.2in a SAN environment with an EMC Symmetrix and an IBM ESS 2105.
• Performance Monitoring & Tuning -iostat, vmstat & netstat, nfsstat.
• Experience configuring Firewall and security usingSSL, IPchains, IPtables, TCP Wrappers, Tripwire, and port scanners.
• Security compliance on the OS forSOXand internal audits.
• Experience in performingDBA taskssuch ascreatingusers, roles, tables, tablespaces, imports and exportsfor development of databases.
• Excellent client relation skills and the drive to complete tasks effectively, and efficiently where customer services and technical skills are demanded.
• Ability to communicate effectively with all levels of management, and the client community.
• Provided production support in an on-call rotation in a24x7environment.

TECHNICAL SKILLS

Operating Systems: SUSE 10/11, Solaris 8/9/10, AIX 4.x, 5.1, 5.2, 5.3, RedHat 7/8/9, CentOS 3/4/5, Windows 2000/2003 Server. Windows NT4.0, Windows 98/2000/XP/2003/2008 R2.

Hardware: Sun Servers (x4250, x4270, x6250, x6270m2, v240 and E450), IBM RS/6000, p520, p550, p570, p590, p595, p670, p690, PowerHA, VeritasHA, SPARC (M5000) Ethernet hubs, and switches.HP

Tools: Sun Cluster 3.2, VERITAS Netback up 6.0, Admin Tool, Ufsdump, VERITAS Storage Foundation Suite, Solaris Volume Manager, File manager, IIS, send mail.

Languages: Shell Programming, SQL, PL/SQL, C++ and HTML.

Databases: Oracle 8i/9i/10g, SQL Server 2005/2000, DB2,MS-Access, MySQL, Informix.

Networking: FTP, FTPS, HTTP, HTTPS, TCP/IP, NIS, NFS, DNS, ALE, and BAPI.

Scripts: Bourne, Bash, Korn Shell.

Storage and Backup: Dothill, Sun Storage, Tivoli Storage Manager, VERITAS Net Backup, NAS.

Web and Application: Apache, Glassfish, Web Logic Server 8.1, WebSphere Application Server 5.0.

PROFESSIONAL EXPERIENCE

Confidential, Chesterbrook, PA

UNIX/Linux Administrator

Responsibilities:

• Installed and configured hardware and OS onServers, Workstations and I/O devicesonSun hardware.
• Monitor, troubleshoot and administer of SUNServers, Linux and HP-UX.
• Installed and configured IIS for SMTP connection in mail flow.
• Integrated IIS with Weblogic using SSL secure connection.
• Installed vmware and lead a team migrating physical servers to virtual machines and configuring the resources to be shared between different virtual machines.
• Coordinated Hardware configuration, installation and management as well as. Configuration of ILOs and Console connections for HP Gen 8 Blade and Rack mounted servers.
• Manage vmware licenses and create virtual machines for developers whenever required.
• Use vmotion to migrate virtual servers between different physical machines.
• Installation and configuration of Windows servers runningDHCP, DNS, Exchange & Active Directories.
• PerformedJumpstart Installationof Solaris servers for different OS levels (9/10) for different architectures (V- series, M series, T series).
• Installed and configured KVM on Dell Blade Servers using virt-manager
• Having complete UNIX power user toolkit, expertise in using vi, sed, awk, perl and basic SQL.
• Worked in a fast-paced 24x7 production environment comprising Sun,IBM, and PowerHA.
• Installed configured, managed the ACL’s around theCVS, Subversion (SVN)repository and also responsible for back-up recovery of the repository.
• Installation of OAS (Oracle Application Server) on Solaris 9 and its configuration with oracle database.
• Restore of Oracle instance and worked with Oracle team for Oracle installation and Building Oracle Cluster.
• Installedpatchesand software as needed, installed and configured new hard drives and memory.
• Created disk groups, volumes, volume groups and RAIDs usingVERITASVolume Manager and worked onTivoli Storage Manager (TSM),Veritas DMP multipathing, Solstice DiskSuite (SVM).
• Involved in disk configuration and disk crash recovery using format andfdisk. Performed fsck on the file systems and bad super blocks were repaired using repair and analyze.
• Created new slices, mounted new file systems and unmounted file systems.
• Created and MaintainedZFS.
• Upgraded Solaris 9 to Solaris 10 and worked with Solariszones/containers, Used Solaris Cluster to deploy two-node cluster.
• Writing shell and Perl scripts for System administration and updating them in the Scheduler / Cron.
• Installed the packages using Enterprise Installation Standards (EIS).
• Performedpatching,backupson multiple environments ofSolaris,LinuxandVMware.
• Installed and configured packages, patches onWindows (2k &2003)environments.
• Implemented anti-spam technology based on open source applications onLinuxservers.
• Created and Managed Meta devices using Solstice Disk suite and Volume Manager.
• Configured backup/archive policies usingTivoli Storage Managerbackup utility, andmksysbimages of root volume group to meet data archiving requirements, and disaster recovery readiness.
• Installed and Configured Sun ONE Webserver.
• Responsible for monitoring system performance and health by using a toolBig Brother or Xymon.
• Responsible forDNSand Configured DNS Servers and Clients, troubleshooting system and DNS issues.
• ConfiguredBIND9 DNSServer to serve an internal network and an external network at the same time with different set of information on Solaris servers.
• Troubleshooting and analysis of hardware and software failures for variousUNIXservers(core dump and log file analysis).
• Involved in maintaining high availability clustering environment usingHACMPCluster software.
• Configured and administeredTCP/IP, LPAR/DLPAR,NFSand VIO servers and Worked withLDAPin order to resolve user management issues.
• Developed scripts for automating administration tasks like customizing user environment, and performance monitoring and tuning withnfsstat, netstat, iostat, vmstat.
• CreatedKorn shell scriptsto monitor system resources and system maintenance and Performed administrative tasks such as System start-up/shutdown, and Backup strategy and scheduledcronjobs for job automation.
• Installed and deployedWeblogicand Websphere Application Servers (WAS).
• Created disk groups, initialized physical disks, cachreated sub disks, plexes, volumes to create aVeritas File System (VxFS).
• Import and Deport disks into a disk group dependending on the requirement using the vxassist utility on theVeritas Volume Manager.
• UsedVERITAS Netback uptool for Backup and recovery, Developed and executed test plans forVeritasClusterwithNetappSAN.
• Worked on tripware,F5 networksin order to develop an effective way to direct traffic running on app servers using theBIG IPapplication traffic management device.
• ConfiguredLUNs(HDS)usingVeritas Volume Manager.
• Experience in performingRAC, deploy, and support using Oracle RAC on Solaris 9/10.
• Provided support for multi-path Fiber Channel storage systems, as well as Solaris servers configured with multipleFiber Channel (FC) Host Bus Adapters (HBA)onaStorage Area Network (SAN).
• Experience in working withClearCaseCLI commands such as clear tool and clear make in both single command mode and interactive mode.
• Experience in working with cleartool to display event record, by including the comment strings such as lshistory, lscheckout, lstype etc.
• Installed and configured domain wide mail systems utilizing Postfix with multi subnet and a single relay host for internal mail forwarding, all external mails were handled bySend mail and SMTP.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Provided24x7supporton shift rotation basis.

Environment: Sun Solaris 10/9, Windows NT 4.0, 2003, 2008 R2,Websphere, Weblogic, Windows NT 4.0, VERITAS Volume Manager 5.0,perl, VERITAS Net backup 6.0, Sun Enterprise 4500, Sun Enterprise 450/420R/250, Sun Ultra 250 with RAID, Pentium PCs, Oracle 10g, HACMP, SAN, NIM, NFS, VIO Servers.

Confidential, Bloomington, IL

UNIX/LINUX Administrator

Responsibilities:

• Responsible for installation, configuration and administration ofSun Solaris 9and Red Hat Enterprise Linux on x86 architecture.
• Installed and configured of hardware and OS on servers, workstations and I/O devices onE4500environment.
• Managed the User and Application Account creations and deletions for the SUN Servers. This includes setting upSUDOaccess forDBAand application account access.
• Created mount points for Server directories, and mounted directories on the Servers.
• Installed and Administered Veritas volume manager 3.5 on Ultra Sparc E250, E450, Sun E3000 machines and configured RAID 0, RAID 1, RAID 0+1 and RAID 5. Created vmdisks, plexes, and volumes using the volume manager according to the requirements. Replaced failed disks using vxdiskadm.
• Co-ordinate with web admin team in installation ofBEA Web Logic Server 8.1.
• UsedATG application suite and Cisco networking solutionsoftware to host variety of applications.
• Setup and maintainedNFS, DNS, NIS, andTCP/IPnetwork and knowledge inLDAPServer.
• Maintaining network and data security and, Setting up SSH and SCP features between SUN systems and other UNIX hosts.
• Automated routine jobs by developing Korn, Perl and Bash shell-scripts
• Installed/upgradeTSMon Unix Servers, Developed and executed test plans forVeritas ClusterwithNetappSAN.
• UsedESN Manager LUN/Meta mappingto performStorage Allocation / Deallocationfor the EMC Storage SAN.
• Installed and configured VMware ESX server instancesfor virtual server setup and deployment.
• Solaris fibre channel stack components for changes that could impact theSANattach solution like Native drivers, HBAs, multipathing (MPxIO) SW, volume management, host clustering, installation/packaging, & bug fixes.
• Developed Korn shell scripts for admin tasks like customizing user environment, performance monitoring and Responsible for cron job management and Performed disaster recovery management procedures.
• Managed file permissions & ownership for important directories & files.
• Administered security, users, groups’ administration and daily backup and restore operations, networking service, performance, and resource monitoring and Performed disaster recovery management procedures.
• Administration responsibilities include user, group, disk, and security management, File sharing Permissions.
• Generated reports to show the trends of resource utilization user/CPU/network load.
• Assisted other UNIX administrators when help was needed (i.e. creating UNIX accounts, writing scripts to perform system administrator functions, responding to trouble tickets, etc).
• Involved in preparation of functional and system specifications. Estimated storage requirements for applications.

Environment: Sun Solaris 10/9, Red Hat Linux 4, Dell Power Edge 1800/1850/2850 servers, Intel servers, Sun Ultra Enterprise 4500, Sun Enterprise 450, Sun Enterprise 420R, Sun Enterprise 250, Sun Fire V20z servers, Dell PCs & Compaq PCs, Perl, SDS 4.1, 4.2 Solstice Disksuite VERITAS Volume Manager, VERITAS Netback up 5.0, Sybase 11.5.1, Perl Scripting, Oracle, NIS, NFS, LDAP server.

Confidential, Durham, NC

UNIX/LINUX Administrator

Responsibilities:

• Patching of RHEL5 and Solaris 8, 9, 10 servers for EMC Powerpath Upgrade for VMAX migration.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• 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.
• Configuration and administration of NFS and Samba in Linux and Solaris.
• 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.
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 4.0.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers and with vendors for hardware related issues.
• Expanded file system using Solaris Volume Manager (SVM) in the fly in Solaris boxes.
• Managed and upgraded UNIX's server services such as Bind DNS.
• Configuration and administration of Web (Apache), DHCP and FTP Servers in Linux and Solaris servers.
• Supported the backup environments running VERITAS Net Backup 6.5.
• Responsible for setting cron jobs on the servers.
• 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.
• Configuration and troubleshooting - LAN and TCP/IP issues.

Environment: Red Hat Enterprise Linux 4.x, 5.x, Sun Solaris 8, 9, 10, VERITAS Volume Manager, Oracle 11G, Samba, Oracle RAC/ASM,EMC Power path, DELL PowerEdge 6650, HP Proliant DL 385, 585, 580, Sun Fire v440, SUN BLADE X6250, X6270.

Confidential, Oklahoma City, OK

UNIX/LINUX Administrator

Responsibilities:

• Installation of Sun E250, E450, Sun E3000, SunFire v440/v480/v490 with Solaris 8/9. Upgraded/Migrated Solaris 7 to Solaris 8 on Sun servers and workstations.
• Configure Winbindon all Linux workstations, which enables all the Linux users to be authenticated on MicrosoftWindows 2000 and 2003 Active Directory Server.
• Perform Microsoft Exchange maintenance tasks such as mailbox cleanup, archiving and user creations.
• Monitor T1, ISDN, 56k Modem, Router connectivity and all main servers\' activity on a continuous basis.
• Worked with DR tests of UNIX (Solaris & Linux), Oracle, DB2& Sybase databases, Peoplesoft/SAP, FOBOCA, Securities & Trading Apps and whole UNIX infrastructure.R1/R2 mappings, DNS/LAM changes.
• UsedRPMsto install, update, verify, query and erase packages from Linux Servers.
• Authorized Solaris users/groups to access various applications and troubleshot various user problems using management tools.
• SetupEMC HBA fiber cardsand storage frames forDB2, Oracle and Sybase databases.
• Responsible forDNSand Configured DNS Servers and Clients, troubleshooting system and DNS issues.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.
• Responsible for Day to Day Backup and Recovery using tar, using and ufsdump on solaris 8 & 9.
• Performed disk mirroring using SDS 4.1, 4.2(Solstice Disksuite).
• Managed sharedNFSfiles system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Managed Cluster of Linux Servers usingGFS.
• Involved in disk configuration and disk crash recovery using format and fdisk. Bad spots on disk were repaired using repair and analyze. Created new slices, mounted new file systems and unmounted file systems.
• Worked with SAN, in EMC and CLARiiON disks, their configuration and installation of power path.
• Implemented System policies and hardware profiles, hard disk configuration for fault tolerance, disk mirroring and back up the data using BACKUP devices.
• Validate daily tape backups. Assist in the migration of the backup infrastructure fromLegato Networker to Symantec Backup Exec.
• User accounts management, developing korn shell scripts for various system performances monitoring purposes and troubleshooting.
• Installed and ConfiguredApache Web Server.
• ImplementedBug tracking system using bugzillaand Performed problem determination and restored service using standard procedures.
• Security measures blocking unnecessary ports and restricting user’s remote logins.
• Configuration and troubleshooting -LAN and TCP/IP issues, Weblogic.
• Monitor bad user logins and unauthorized users, frequently changing the root password for security.

Environment: Sun Solaris 9/8,Linux, BEA Web Logic 8.1,Apache web server, Sun E250, E450, Sun E3000, SunFire v440/v480/v490, Sun Sparc 20/10/5,Legato networker, ORACLE 9, C, EMC CLARiiON, Solstice Disksuite,, Cisco switches & routers, VLAN, Winbind