The Data Warehouse server will be upgraded to an Exadata
server on December 18, 2011. This may or may not have an effect
on how you access the Data Warehouse Tables. Listed below are
different scenarios of accessing the Data Warehouse and how
these scenarios are affected by the move to the Exadata
Access to DWPROD via Data Warehouse Web Query Tool
For users who access the Data Warehouse tables using the WQT
(dw.umn.edu), this change should be seamless and you will not
do anything different.
Access to DWPROD via System or Server
If you access the Data Warehouse through another server, the
server will need to be authorized by its IP address in order to
access the Exadata server. Only servers whose IP addresses have
been submitted to OIT will be able to connect to the Exadata
server. Please email the IP address of the connecting server to
Phil Husby at
Following migration to the Exadata server, if your server's
IP address should change, the new IP address will need to be
shared with OIT by sending the new IP address to OIT-BI-
Direct Access to DWPROD via PC or Laptop
If you are a user who directly connects to the Data
Warehouse tables using another software product on your PC or
laptop, such as Toad, SQL Plus, MS Access or SQL Developer, you
have two options for making a connection.
You must first log into the OIT VPN software application
prior to making a connection with your software product. Once
you are logged on to OIT VPN, you will remain connected until
you disconnect from OIT VPN or shut down your computer. In
order to install the correct version of VPN on your PC/Laptop,
please go to
and Guides web page
and use the instructions below to download, install and
configure OIT VPN.
- After installing, open the Cisco AnyConnect VPN Client.
In the "Connect to" field, enter tc-vpn-1.vpn.umn.edu and
- Three new fields should display below: Group, Username,
- In the Group dropdown, select
- This requires you to login with your M-Key.
If you need access to any UMD servers while you are
connected to the Data Warehouse, you will not be able to make
this connection while using the OIT VPN software application.
In this scenario, which overrides the need for using OIT VPN,
you will need to contact ITSS at
to have your PC IP address put into an IP address range that
will allow connection to the new server.
You will also need to set up the connection profiles to the
database instances for the new Exadata server on your PC or
laptop. The connection profile information for the test
(ADDRESS = (PROTOCOL = TCP)(Host = dmp1-scan.oit.umn.edu)(Port= 1521))
(SERVICE_NAME = dwtst.oit)))
The connection information for the production database is
currently being determined by OIT and will be released when
finalized. Please contact the ITSS helpdesk , extension 8847,
for more information about the connection profile information
for the production database, or you may also contact Debbie
if you need more information to configure your connection to
the new server.
When your configuration is complete, be sure to try
accessing the Exadata test system and test the queries that you
normally run. Please complete your testing in early December in
order to allow time to fix any issues that are found.