IT Infrastructure

LDC's IT infrastructure is a comprehensive, autonomous and internally-managed system within the University of Pennsylvania's infrastructure, permitting the modularity and flexibility required to match LDC needs.

  • In-house Storage-as-a-Service (SaaS) integrating heterogeneous storage solutions, from DA, to NAS and fibre channel-based SAN. More than 200TB are currently online with the capability to scale up to Petabytes rapidly and transparently.
  • Comprehensive backup and disk replication.
  • In house Compute-as-a-Service (CaaS) with multitiered service model and physically distributed compute nodes.
  • Standard Internet services (e-mail, web, etc.) with more than 300 Gigabit switched ports, a /22 private IP space, a public /24, and public /23 on two separate networks. Two autonomous WiFi networks are provided on the private IP space as well.
  • A helpdesk and support service for LDC staff and researchers with real-time monitoring, alarming and trouble ticket processing tools.

LDC maintains several systems, supporting, among others, the following features/systems:

  • Web Servers:
    • Virtualized web infrastructure consisting of a cluster of virtual servers
  • Virtualization Servers:
    • fully redundant production copute environment
    • a distinct, and independent staging compute layer, multinode
  • Database Servers:
    • redundant SQL production tier
    • staging Database-as-a-Service tier
  • File Servers: Multiple servers supporting over 250 TB of storage
    • fully redundant server for NFS, FC, iSCSI and SMB volumes
    • redundant fiber channel tier serving ~60TB
    • redundant fast fiber channel tier serving ~50 TB
    • data distribution service cia SCP or RestAPI
    • Restricted Access Storage Area
  • Backup System:
    • mirror/replication and snapshots
    • replication on disk for dynamic data
    • 2 Tape robots for static data
    • VTL on site and on cloud computing services
    • 2 Backup servers
  • Email:
    • internally maintained mail server
    • externally located backup server
    • fully redundant LDAP system
    • fully redundant Active Directory system


  • Public
    • 2x24 switched Gigabit Ethernet ports
    • Optic fibre to the Internet and Internet 2
    • 1 CIDR /23 network (equivalent to 2 class-C networks)
    • 1 CIDR /24 network (equivalent to a 1 class-C network)
  • Private - 264 fully switched Gigabit Ethernet ports
  • 2 Wireless networks 802.11n
  • 10GB Optic fibre connection between buildings
  • Real time monitoring server with alarming services

In addition, there are approximately 70 annotation/transcription workstations running various operating systems such as Linux, Windows and OSX. 60 of those workstations are collected in four common work areas of varying size.