David Mostardi

Senior Systems Administrator – Storage Architect

Summary

Over twenty years of experience in systems administration with responsibilities in the core computing infrastructure. Areas of expertise include:

• Storage technologies • Security • Networking

• Unix & Linux • Production Systems • Backups

• Data center design • Disaster recovery

Professional Experience

Senior Systems Administrator MDL Information Systems, San Ramon CA 1995 – 2007

Symyx Technologies (post-acquisition) 2007 – Dec 2008

Administered all aspects of Unix, storage and security, including customer-facing production networks, for this chemistry and pharmaceutical software company. Member of the senior IT team which executed a multi-year plan to build a resilient worldwide network, easily yet securely controllable from multiple access points.

Storage technologies

• Designed and managed high-availability 53TB NAS infrastructure. Fewer than 10 hours unscheduled downtime over the last six years

• Setup disaster recovery site, replicated all NAS data there on an hourly basis

• Designed and managed tape backup infrastructure. Implemented transition to direct-to-disk backups, decreasing backup window by 90%

Unix & Linux

• Managed network of 300 Unix & Linux servers critical to software development and QA

• Supported user community of programmers and engineers

• Automated imaging of new servers, reducing rollout time & simplifying administration

• Administered network & Internet services, including DNS

• Proactively monitored storage, servers & network with Xymon, identifying and solving small problems before they became big problems

Data center design & production systems

• Designed 2400sf data center for MDL’s move from San Leandro to San Ramon. Solved physical access requirements with a sequence of increasingly secure zones separated by wire partitions.

• Managed the physical move of the data center computers to San Ramon, limiting the downtime to just five days, and zero downtime for production web servers

• Instituted new change control policies for data center, preventing wiring problems and space contention

• Migrated production web sites from DR site to San Ramon with no unscheduled downtime

• Implemented multiple access methods at all remote locations, minimizing need for human interaction

Security

• Installed & managed firewalls in seven worldwide offices, including intrusion detection, content filtering

• Enabled secure Internet access via VPN and two-factor authentication

• Represented MDL at periodic international Security Council meetings

David Mostardi

Professional Experience, cont’d

Systems Administrator Monterey Bay Aquarium Research Institute, Pacific Grove

Capital Market Technology, Berkeley

Mathematical Sciences Research Institute, Berkeley

Professorial Lecturer Golden Gate University, San Francisco

Instructor Vista College, Berkeley

Technical Skills

OS Unix (Solaris, SunOS, SGI Irix, HP HPUX, Dec Tru64, IBM AIX), Linux (Red Hat, Ubuntu), perl, shell scripting (sh, ksh, csh, tcsh), VMware, Jumpstart, Kickstart

Storage Network Appliance (NetApp), OnTap, snapmirror, NAS, SAN, NFS, CIFS, Fiber Channel, iSCSI

Network Extreme, Xylan, Avocent-Cyclades terminal concentrator, TCP/IP, DNS, DHCP, NIS, NTP, NNTP, SMTP, POP3, logging, monitoring (Xymon/Hobbit, Big Brother, Nagios), F5 BigIP load balancer

Security Juniper Netscreen, Checkpoint/Nokia, Nortel Contivity, Citrix-Netscaler, Websense, RSA SecurID, RADIUS

Web iPlanet, Apache, web proxy

Backups EMC-Legato Networker, NDMP

Professional Activities

Member of Usenix and SAGE (Systems Administrator’s Guild) since 1994

Charter member of LOPSA (League of Professional Systems Administrators), 2005

Regular attendee at Usenix LISA conference since 1993

Education

B.A. Zoology, University of California, Berkeley

California Community Colleges Teaching Credential, Data Processing