LOGIS Blog

Network Services Update: 7/7/2011

Date Posted:

IP Telephony

As part of our dedication to providing our members with leading edge technology in our IP Telephony Service, we have completed the upgrade our Presence servers and our clustered Unity Connection servers.  Over the next couple of months, LOGIS will be focusing on completing the remaining Unity server upgrades.

Network Services

LOGIS has completed the fiber optic redundancy failover tests of the Southern fiber optic ring.  This includes dropping multiple segments and validating the traffic and routing to all member networks.  The great news is that the failovers were completed without any interruptions to our member networks or connectivity.

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Category: Disaster Recovery,Networking,VoIP,WAN

Network Services Update: 5/13/11

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LOGIS IP Telephony

The IP Telephony Service marches on!  In May, LOGIS began upgrading our members to the newest 8.5 versions of Cisco Presence and Unity Connection.  These upgrades will continue through June and will add valuable features and functionality for the members of our IP Telephony service.

At the same time we have begun the 2011 member recovery tests.  These tests assure the smooth failover to SRST and of the member PRIs to the LOGIS data center PRIs.  These tests assure that failures of local service will not affect member phone availiablity.

Network Services

The Network Services group moves forward with testing of the “Managed Services” offerings.  We have successfully implemented offsite network based backups for one of the LOGIS members and configured a member server network that utilizes the LOGIS data center facility, switches, and SAN.  To date, these tests have proven very successful and look very promising in providing cost and labor savings to members utilizing the “Managed Services” offerings.

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Category: Disaster Recovery,Networking,VoIP,WAN

The LOGIS Hot Site and Disaster Recovery for Public Safety Systems

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Every year all public safety systems operating at LOGIS (CAD, Mobiles and Records and Interfaces) are manually failed-over to the LOGIS Hot Site located in the Brooklyn Center Police Department. This is an important and necessary procedure that tests our ability to continue the operation of the public safety systems in the event of a disaster at the main LOGIS facility in Golden Valley. The Hot Site adds “insurance” and value to the LOGIS public safety systems.

Typically, the test starts with a Saturday morning shut down at the Golden Valley LOGIS facility. There is some downtime as we switch operations to the Hot Site. We then operate out of the Hot Site for 24 hours. On Sunday morning, we switch the operations back to the main LOGIS facility in Golden Valley. The most recent test, October 9th and 10th, was successful and revealed some important information to help with future recovery tests or an actual disaster recovery event.

A significant amount of preparation goes into the test of our Disaster Recovery capabilities. These yearly tests are critical to validate our procedures, validate system configurations, train our staff and have the agency staff experience the recovery procedure. A post procedure evaluation critiques and updates the documentation for all parties involved.

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Category: Computer Aided Dispatch,Disaster Recovery,Law Records Management

LOGIS GIS is helping our cities standardize mapping for disaster response and damage assessment

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One of the many ways LOGIS GIS assists our public safety group and other emergency responders from our member cities is through the compilation and delivery of paper and digital “cab books”.   These map books are specific to the jurisdictions of the cities and have, in recent iterations, been designed with the U.S. National Grid system as the primary focus of the page layout.

The U.S. National Grid (USNG) is based on a common geographic projection and rectangular grid system (Universal Transverse Mercator).  A practical advantage over using geographic coordinates (latitude, longitude) is that USNG location references correlate directly to field measurements.  In other words, distances can be accurately measured between two locations easily, and the precision of locations and measurements can be maintained consistently across the state and across the nation. This is not true with geographic coordinates.

The compilation of our U.S. National Grid “cab books” has been a collaborative effort.  LOGIS GIS staff solicited assistance in sheet layout, design, and national compliance requirements from the city of Edina’s GIS staff and we acquired USNG data source information from Dakota County’s Office of GIS as well as other sources.  LOGIS GIS then compiled and delivered comb bound paper copies of the books to several of our GIS member cities and has created digital pages of the books for all of our GIS member cities.  Since many of the map layers of these books are updated regularly for a variety of other city GIS needs, the compilation procedure has been embedded in our enterprise GIS.  In this way LOGIS GIS, city, and agency staff can quickly and easily reproduce up-to-date replacement pages for their books whenever necessary.

Please contact the LOGIS GIS staff for more information about USNG “cab books” for your city.

For more information on the implementation of the U.S. National Grid in Minnesota, please see this article.  http://www.mngislis.org/displaycommon.cfm?an=1&subarticlenbr=445

Also see the following for information on the USNG as a state standard. http://www.mngeo.state.mn.us/committee/standards/usng/usng_standard.htm

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Category: Disaster Recovery,Geographic Information Systems (GIS)

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