We provide IT Staff Augmentation Services!

Unix/linux Administrator Resume

Duluth, GA

SUMMARY:

  • A Sun Certified system Administrator, over 7 years of experience as UNIX Administration in SUN-SOLARIS (10, 9, 8), RedHat LINUX, SUSE Linux 10/11, CentOS and Windows, knowledge in computer hardware and I/O devices.
  • 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, DHCP & DNS configurations.
  • Installed/configuredIISfor performance tuning.
  • 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 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, IPlanet, BEA WebLogic, 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, 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.
  • 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.

Certifications:

  • Sun Certified System Administrator for Solaris 9/10 Operating System.

Education:

  • Bachelor of Electronics and Communications, Nagpur University, India.

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.

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

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, Duluth, GA

April 2011 – August 2012

UNIX/Linux Administrator

Responsibilities:

  • System Administrator/Integrator role in a large team responsible for maintaining of Linux operating systems such as SUSE 10/11.
  • System Integration role in a diverse product deployed in different parts of the world.
  • System Architect in creating and deploying blue prints for different deployments.
  • Performance tuning and monitoring for Veritas High-Availability architecture.
  • Creating scripts to implement Oracle upgrade procedures and database changes.
  • Creating and testing documentation for customers
  • Testing Settings and configurations for different customers using simulators and available in house hardware.
  • Working with DNS based architecture, in depth knowledge of name service, master and slave configuration, centralized dns lookup and fail over.
  • Testing and troubleshooting database related errors like user profiles/settings, connection issues and foreign key dependency issues.
  • Creating/editing Install/Upgrade scripts to manage rpm’s non-conventionally (selective backup and restore of rpm during upgrade).
  • Working with rpath, creating and managing iso images from the rbuilder server. Importing release rpm database into rpath appliance and managing recipies.
  • Working with VMware 4.0, extensive creation and management of virtual servers and managing resources. Addition of datastores and upgrading the vmware box to 5.0.
  • Using virsh to manage and create virtual servers, deploy raw files, cloning and managing connections.
  • Managing and upgrading glassfish domains.
  • Deploying Oracle Hardware Management pack monitoring agents, configuring snmp traps and doing snmp walks.
  • Creating and managing network routing characteristics for a multipath environment.
  • Troubleshooting and analysis of hardware and software failures for variousLinuxservers(core dump and log file analysis). Managing spfile and pfile for performance tuning.
  • Creating and testing scripts for Solaris 9/10 environments, performance tuning and hardware testing.
  • Experience with webserver configuration like Apache & Weblogic on both Linux & UNIX.
  • Configured secure connection with weblogic and backend database.
  • Use IIS to troubleshoot system related issues and to do an audit on the user logins during a day.
  • Installed different virtualization products such asvmware server 2.0, ESX 3.5/4.0on a physical server which in turn will host different virtual servers running different SUSE versions, Linux, Solaris etc.
  • Configure and maintain VMware with updates and devices managemenet.
  • Perform maintenance tasks in Oracle such as archiving, shrinking, migrating databases and log rotation and archiving.
  • Import and Deport disks into a disk group dependending on the requirement using the vxassist utility on theVeritas Volume Manager.
  • Managed the User and Application Account creations and deletions for the SUN Servers. This includes setting upSUDOaccess forDBAand application account access.
  • Created disk groups, initialized physical disks, created sub disks, plexes, volumes to create aVeritas File System (VxFS).
  • Created mount points for Server directories, and mounted directories on the Servers.
  • Maintaining network and data security using SSH and SCP features between SUN systems and other Linux hosts.
  • Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
  • InstalledpatchesandPackagesas needed, installed and configured new hard drives and memory.
  • Performed Performance Monitoring & Tuning - iostat , vmstat & netstat, nfsstat.
  • Performedpatching,backupson multiple environments ofSolarisandLinux.
  • Installed and configured WebSphere, Apache.
  • 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.
  • Administration responsibilities include user, group, disk, and security management, File sharing Permissions.
  • Installed and Configured Apache Web Server. Taking ufsdump for swap gear preparation on the other site for migration
  • Performedadministration of SunSolaris andbuilding high end Sun Serversfor production environment.Build Sun serverswithSolaris 10, Jumpstart.
  • PerformedInstallation, Upgration , Patches , Migration, Configured , Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (SUSE Linux, SUN Solaris 10, Red Hat Linux)Systems.
  • Experience in writing monitoring/start upshell scriptsfor unix and Linux
  • Performed 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 maintaining file systems and creatingZFS.
  • Performed design and have a development experience inPerland Unix shell scripting

Confidential, Plano, TX

Feb2010 – March 2011

UNIX/Linux Administrator

Responsibilities:

  • System Administrator role in a large team responsible for maintaining of different Unix operating systems such asRHEL3/4/5, Solaris 8/9/10, AIX 5.1/5.3, CentOS 4/5, Windows 2003/2008 R2.
  • Installed IIS on Windows 2003/2008 servers for performance tuning.
  • Installed IIS as webserver and for performance monitoring.
  • Experience with installing IIS on UNIX/Windows platforms and configuring secure connection.
  • Experience with webserver configuration like Apache & Weblogic on both UNIX & Windows platforms.
  • Configured secure connection with weblogic and backend database.
  • Use IIS to troubleshoot system related issues and to do an audit on the user logins during a day.
  • Installed different virtualization products such asvmware server 2.0, ESX 3.5/4.0on a physical server which in turn will host different virtual servers running different RHEL versions, Linux, Solaris etc and windows servers.
  • Configure and maintain VMware with updates and devices managemenet.
  • Installed Windows servers runningActive Directories & Exchange.
  • Perform maintenance tasks in MS Exchange such as archiving, shrinking, migrating mailboxes.
  • Installed different Oracle products such asOracle BPM, integrated it with Oracle weblogic server 10.3, Oracle DB 11g andSun One LDAP 6.1to allow developers to work on it.
  • InstalledAIXasLPARon anIBM Pseries servers maintained by usingHMCset up on aSUSEserver.
  • Import and Deport disks into a disk group dependending on the requirement using the vxassist utility on theVeritas Volume Manager.
  • Managed the User and Application Account creations and deletions for the SUN Servers. This includes setting upSUDOaccess forDBAand application account access.
  • Created disk groups, initialized physical disks, created sub disks, plexes, volumes to create aVeritas File System (VxFS).
  • Created mount points for Server directories, and mounted directories on the Servers.
  • Maintaining network and data security usingBigFixand, Setting up SSH and SCP features between SUN systems and other UNIX hosts.
  • Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
  • InstalledpatchesandPackagesas needed, installed and configured new hard drives and memory.
  • Troubleshooting and analysis of hardware and software failures for variousUNIXservers(core dump and log file analysis).
  • Performed Performance Monitoring & Tuning - iostat , vmstat & netstat, nfsstat.
  • 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.
  • Performedpatching,backupson multiple environments ofSolarisandLinux.
  • Installed and configured WebSphere, Apache, IPlanet, BEA WebLogic.
  • 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.
  • Administration responsibilities include user, group, disk, and security management, File sharing Permissions.
  • Installed and Configured Apache Web Server. Taking ufsdump for swap gear preparation on the other site for migration
  • Performed Installation and Administration of BEA Weblogic 8.1/9.2/10.3
  • Installed products like tibco. Responsible for installation, configuration and support of WebLogic 10.3/9.2/8.1 on Sun Solaris 10 Servers.
  • Performedadministration of SunSolaris andbuilding high end Sun Serversfor production environment.Builded Sun serverswithSolaris 10, Jumpstart
  • PerformedInstallation, Upgration , Patches , Migration, Configured , Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (SUN Solaris 10, Red Hat Linux, CentOS)Systems.
  • Experience in writing monitoring/start upshell scriptsfor unix and batch scripts for windows
  • Performed 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 maintaining file systems and creatingZFS.
  • Experience in implementing and maintaining theIBM NetCool suitein a complex enterprise environment
  • Performed design and have a development experience inPerland Unix shell scripting

Confidential, San Francisco, CA July 2009– Jan 2010

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.
  • 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).
  • Worked in a fast-paced 24x7 production environment comprising Sun,IBM, 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.
  • 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, 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, Plymouth, MI May 2008 - June 2009

Solaris 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.
  • 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, 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 West Des Moines, IA Feb 2006 - Apr 2008

Solaris/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

Confidential June2005 – Feb 2006

Solaris/UNIX Administrator

Responsibilities:

  • Administered servers in heterogeneous environments which include Solaris and Linux systems.
  • Managed Linux Clusters by integratingNAS, SAN, SCSI, Myrinet and Infinibandinto large high performance clusters. Installed, and configured cluster management tools to perform management and job submission to Clusters.
  • Authorized Solaris users/groups to access various applications and troubleshot various user problems using management tools.
  • Configure and maintainWindows 2kand2003Server that runsDNS, DHCP and active directory services.
  • Used Logical Volume Manager for configuring logical volumes.
  • Administered, installed, and supported services including:exim, qmail, BIND, spamassassin, iptables, ipchains, apache, Mailman.
  • Installations of all the required Software, documentation and licensing and added new SCSI hard drives to the system.
  • Setup dial-up, VPN(Oracle VPN Client), and SSH2(Van Dyke Software), andfirewall applications(Mcafee) for developers to access various domains.
  • Deployed NFS environment for applications distribution, software development, and "auto home". This also involved setting up automated backups for the critical systems, and configuring "cachefs" for performance gains on the client side.
  • Expertise in setup various Network Printers and troubleshooting Printer problems.
  • Shutdown the whole system along with databases and reboot the system.
  • Used various commands to check the Performance of the system, load balances on the CPU and memory.
  • Used Admintool to Manage Users, Groups, Software, Hosts and Printers.
  • Worked with DBAson installation of Sybaseto achieve restoration and log generation.
  • Monitored Sun Solaris Servers running in a24x7 data centresupporting approximately400 servers.
  • Solved hardware and software problems over the phone or during walk-in sessions.
  • Attended weekly change management meeting and suggested various changes. Implemented all changes by following change management rules.

Environment:Sun Solaris 8/9, Red Hat Linux 6.2, NFS, NIS, TSM, IBM RS/6000, IBM PowerHA,Veritas Volume manager 3.5, SunE250,E450,SunE3000, SunFire v440/v480/v490.

Education:Bachelor of Electronics and Communications

Hire Now