System Administrator Resume
Hartford, CT
SUMMARY
- Over 6+ years of IT experience specialized in System Administration, implementation and production support in heterogeneous environments.
- Strong background in seamless integration of heterogeneous Unix/Linux environments (Sun Solaris 2.6/8/9/10, AIX 4.1/4.3.3/5.1/5.2 , HP - UX 10.20/11.0/11.11/11.23 , Redhat Linux8.1/9.0, ES 3/4, SuSe 9/10, Wintel).
- Experience in Sun Solaris 10(Creation of Zones, Service Management Facilities, Virtualization, Container based).
- Proficient in Installation, Configuration, Support & Maintenance of various Sun Sparc, E10K, Red hat, Fedora core, SuSe Linux Servers located at remote Locations.
- Web Hosting Administration, HTTP, FTP, Telnet, SSH, SSL.
- Hands on experience with Veritas Volume Manager (VxVM), Veritas Net Backup, Veritas Clustering with SAN, NAS environment.
- Extensive experience with operating systems, network protocols, systems programming and configurations, and/or hubs, switches, and routers.
- Installing, upgrading and configuring SUN Solaris 7, 8, 9 and 10 using Jumpstart Installation.
- Thorough knowledge of UNIX internals and utilities. (Kernel, Memory, Swap)
- Extensive working experience in process scheduling, disk and file system I/O, kernel internals, TCP/IP networking, Microsoft IIS and Web Services, Network & Firewall.
- Expertise in installation, Configuration and administration of Veritas Cluster Servers 3.x/4.x
- Proficient in configuring TCP/IP, DNS, NFS, NIS, NIS+, SAMBA, LDAP, SSH, SMTP, SNMP etc.
- Efficiency in installing, configuring and implementing the RAID technologies using various tools like Veritas volume manager and File System, Solaris volume manager, VCS 4.1.
- Proficient in using admintool, vmstat, netstat, iostat, ifconfig, trace route.
- Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
- Installation and upgrade of Software & Patches, configuration mgmt, version control, service pack. & reviewing connectivity issue regarding security problem.
- Expert in installing, configuring and maintaining Apache/Tomcat, samba & send mail, BEA Weblogic 8.5 through 10.2, Sun One Web Server, Sun One Directory Server.
- Good experience in UNIX performance tuning and Capacity Planning.
- Export in writing and troubleshooting Bourne, Bash, Ksh & Perl scripts.
- Excellent Team Player with strong interpersonal and communication skills.
- Excellent client relation skills and the drive to complete tasks effectively and efficiently where customer services and technical skills are demanded as well as the ability to communicate effectively with all levels of management and the client community.
- Supported, enhanced and maintained a heterogeneous UNIX network of Solaris and SCOV in a 24x7 Production Environment.
TECHNICAL SKILLS
Operating System: SUN Solaris 2.4/6/7/8/9/10,Windows Server 2000 and 2003, NT 4.0, Red Hat Linux, SUSE, HP-UNIX, IBM-AIX, Advance Server 2.1 & 3.0, 3.5 and Windows 2003/95/98/XP/2000, Windows Vista.
Hardware: Sun Ultra Enterprise Servers (E3500, E4500, E450, E420R,E250), Sun Fire(6800,4800,3800,v880,V480,V240,V210,V440,280R,15K,25K,12K), Sun SPARC T5440, T5120, T5220, T5140, T5240 & sun blade 2500Sun workstations (Ultra 5, 10, 20, Blade 100,150, 2000). Sun Store Edge D1000 & A5000, IBM P Series and F series, IBM RS 6000.
Tools: Solstice Disk Suite, VERITAS Volume Manager, VERITAS Net backup 5.0, Solaris Volume Manager, Solstice disk suite 4.x, Veritas Cluster Server, Sun Cluster Server
Languages: Xml, HTML, Java/J2EE, C/C++, Shell and Perl Scripting
Database: Oracle 8.x,9.x,10g, DB2, SQL, Sybase
PROFESSIONAL EXPERIENCE
Confidential, Princeton,NJ
System Administrator
Responsibilities:
- Working in the level 2 Application Support by using Solaris 8,9,10, Linux SLES, Redhat Linux Servers.
- Installing Agent, Configuration, adding resources and group in the Veritas Cluster Servers 5.1.
- Managing & monitoring the performance of teams, maintaining Shift Statistics to ensure efficiency in process operations and meeting of individual & group targets.
- Key roll in deployment, installation and configuration of Sun Servers in production environment.
- Handling system dependencies and binary files management.
- Regular disk management like adding of new disk to diskgroup, giving the space to existing groups, deleting volume and increasing the file system in Veritas Volume Manager.
- Writing and Troubleshooting Shell, ANT & Perl scripts
- Installed, configured and administered Solaris containers and Creating Zones.
- Proficient in configuring LDAP & Maintenance of LDOM Servers.
- Planning, installing and configuration of operating system on new Sun Servers.
- Installation, configuration and maintenance of DNS, DHCP, TCP/IP, FTP, SFTP, VPN and NIS on Sun Solaris.
- Allocating necessary space requirements for oracle database.
- Server Virtualization using VMware for Redhat linux and Solaris 10 Zoning.
- Providing day-to-day USER Administration like adding or deleting users, password aging.
- Regular disk management like adding / replacing hot swappable drives on existing servers /workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems in SAN Switch.
- Evaluating all the servers email notifications (18000+ Servers ) and checking the health of the systems if I receive any error messages from the servers.
- Creating and resolving user’s access issues ( Role access, FTP etc.,). Creating Oracle case and co-coordinating with hardware team & app team to resolve the system hardware issues and break-fix.
- Monitoring the ticket queue all the time, Working on the tickets and resolving the problems within the time frame.
- Creating maintlog and inform the higher management to inform the unplanned server outages and planned change activities.
- Updating shift handover with all the problems occurred in the shift and open issues. Dialed in to conference calls and resolve the production issues ASAP.
- Installing, configuring and implementing the RAID technologies using various tools like Veritas volume manager and Veritas File System, Solaris volume manager, VCS 5.1
- Installation and configuration of VERITAS, VERITAS Net Backup on Sun Severs and performing Backup using VNB, OS Mirroring and OS replication.
- Installation, Implementation and maintenance of Veritas Cluster Server and Sun Cluster Server.
- Worked in Production & Application Support 24/7 in NAS, EMC SAN Storage on Windows Server Environment.
Confidential, Hartford, CT
System Administrator
Responsibilities:
- Installation of Solaris 8, 9 based servers with Jumpstart and Redhat Linux AS 2.1 test and IBM-AIX production environments.
- Performed project coordination function for evaluation, installation, monitoring, and maintenance of server software on variety of hardware platforms.
- Integrated ZFS and Containers to delegated rights to control the ZFS file system.
- Configured Apache with OpenSSL; self signed certificate & ldap-auth for centralized & secure authentication.
- Installed/ upgraded patches and security (Kernel) patches for all applications in installed infrastructure.
- Proactive maintenance on systems by timely upgrading Patches to the systems and applications, Scheduling of batch jobs and cron jobs.
- Upgraded over 35 servers with Veritas Volume Manager from 3.x to 4.0.
- Built new systems for Production and migrated from Solaris 8 to 9.
- Maintained Volumes and File systems using VxVM / VxFS for Oracle, DB2, Sybase databases.
- Server Virtualization using VMware for Redhat linux.
- Performed systems monitoring, upgrades, performance tuning and backup and recovery.
- Installation, configuration and maintenance of TCP/IP, FTP, SFTP and VPN on Sun Solaris.
- Implementation of naming services like DNS, DHCP, IIS with Bind 8.4.x and NIS.
- Troubleshooting and fixing the problems related to systems, software and day to day regular maintenance tasks of the system.
- Writing and Troubleshooting Shell Scripting.
- Respond to emergency calls relating to server performance, diagnosis of problems, repairing problems or calling upon appropriate vendors to resolve the issue.
- Responsible for quality reviews and standards.
- Provided 24x7 on-call / Remote Support for UNIX Production Problems on weekly rotation basis.
Confidential, NYC, NY
Solaris/Linux Administrator
Responsibilities:
- Installation Redhat Linux 5.2 on Dell, Linux Enterprise Server Machine E20 Enterprise Server (Sun Solaris )
- Installation, Maintenance, Administration and troubleshooting of Sun Solaris 8,9 and Redhat 9, AS 3.0 servers on various hardware platforms that include Sun 4800, V480, 280R, 4500, 3500, Dell 6400, 2400, 1800 etc.
- Performed automated installations of Operating System using Jumpstart for Solaris.
- Extensively worked on hard disk mirroring and stripe with parity using RAID controllers
- Implemented a High Availability Cluster using 2 V480s, a T3 and Veritas Cluster Server 4.1.
- Providing day-to-day user administration like adding/deleting users and managing users queries. Shell programming for routine administration tasks. Analyzing & monitoring system performance through various system
- Configured Samba Server on sun machine, established network connectivity with PC’s through SMB & NMB Protocol.
- Backup & Recovery system performance monitoring kernel tuning, debugging OS failure.
- Attending the day to day user problems
- Adding users according to ticket requirement and mounting the file system, cron-jobs adding etc in Redhat Linux
- Configuring DNS, NIS+ Send mail Server Redhat Linux 5.2
- Implementing and Administering Network File Systems using automounter and administering user and OS data files in NIS, NFS environment
- Creating Oracle Databases and related tasks to support the Oracle team
- System Administration of Redhat Linux & SOLARIS,, Red Hat Linux boxes 5.5, 6.0,6.1,6.2, HP Proliant DL 320/360/380/560 & NT Servers 3.5, 4.0 and Win NT 2000.
- Configuring Printers(Local, Remote & Network Printer) in Redhat Linux 5.2
- Responsible for all day to day system administration tasks (Disk space issue/FS/User logins)
- Configured network file sharing and enabled remote mounting file systems.
- Implemented TCP/IP network based on DHCP, DNS on Linux 5.2 & Sun Solaris 8.
- Setting up of network involving Sun Workstation, Servers and Communication Product.
- Setup a Jumpstart server and client workstation installation.
- Server Virtualization using VMware for Redhat linux .
- Oracle Installation on Solaris 8 & Linux 5.2 Redhat