https://www.americancityandcounty.com/wp-content/themes/acc_child/assets/images/logo/footer-logo.png
  • Home
  • Co-op Solutions
  • Hybrid Work
  • Commentaries
  • News
  • In-Depth
  • Multimedia
    • Back
    • Podcast
  • Resources & Events
    • Back
    • Resources
    • Webinars
    • White Papers
    • IWCE 2022
    • How to Contribute
    • Municipal Cost Index – Archive
    • Equipment Watch Page
    • American City & County Awards
  • About Us
    • Back
    • About Us
    • Contact Us
    • Advertise
    • Privacy Statement
    • Terms of Service
American City and County
  • NEWSLETTER
  • Home
  • Co-op Solutions
  • Hybrid Work
  • Commentaries
  • News
  • In-Depth
  • Multimedia
    • Back
    • Podcasts
    • Latest videos
  • Resources/Events
    • Back
    • Webinars
    • White Papers/eBooks
    • IWCE 2022
    • How to Contribute
    • American City & County Awards
    • Municipal Cost Index
    • Equipment Watch Page
  • About Us
    • Back
    • About Us
    • Contact Us
    • Advertise
    • Cookie Policy
    • Privacy Stament
    • Terms of Service
  • newsletter
  • Administration
  • Economy & Finance
  • Procurement
  • Public Safety
  • Public Works & Utilities
  • Smart Cities & Technology
  • Magazine
acc.com


Fault-tolerant server means less downtime

Fault-tolerant server means less downtime

In July 2001, San Diego Fire & Life Safety Services (SDFLSS) upgraded its computer-aided dispatch (CAD) system for 911 emergency calls. By performing
  • Written by Misty Reagin, Assistant Editor
  • 1st February 2002

In July 2001, San Diego Fire & Life Safety Services (SDFLSS) upgraded its computer-aided dispatch (CAD) system for 911 emergency calls. By performing the upgrade, the department has decreased computer downtime.

SDFLSS schedules regular hardware upgrades every three years to ensure the 911 system is dependable and able to accommodate growing call volumes. “Since we [respond to] approximately 95,000 [fire, medical and lifeguard emergency calls] a year, there is never a good time for a system to be out of service,” says Tracy Jarman, deputy chief for SDFLSS.

SDFLSS previously used two servers that were paired in a cluster; if one server failed, the other would take over the workload. While the clustered servers provided 99.5 percent uptime for CAD, the department’s staff was not satisfied with the complexity of installing, testing and administering two servers instead of one.

The clustered servers also required recovery time whenever the hardware “failed over” to another computer processing unit (CPU). (Fail over refers to the time that elapses while a cluster transfers processing from a faulty server to a backup server that is functioning normally.)

SDFLSS staff decided to purchase a fault-tolerant server (ftServer), which provides 99.99 percent CAD availability, from Maynard, Mass.-based Stratus Technologies. The ftServer replicates each of its major components at least once. If its self-diagnostics indicate a problem with any part of the system, a duplicate element continues processing without interruption.

The system powers a dispatch database that supports applications on which the city’s fire and medical personnel depend. For example, the system allows firefighters and paramedics to receive calls on mobile data terminals mounted inside their vehicles. It also drives an automated vehicle locator tied into a global positioning system for dispatch of the closest response unit.

The fault-tolerant CAD system also relays incident details to pagers carried by emergency response personnel and responds to queries from wireless personal digital assistants carried by the department’s administrative staff. In addition, fire department battalion chiefs can view real time and historical event information directly from Web browser screens.

Tags:

Most Recent


  • $52B semiconductor investment intended to rejuvenate American manufacturing
    Three decades ago, American manufacturing dominated the semiconductor industry, producing about 40 percent of the global supply annually. But over time, companies shipped business overseas looking to cut costs, and today, the nation produces only 10 percent of all semiconductors. It’s something the Biden Administration is trying to change through CHIPS and Science Act. “There […]
  • How capital improvement project prioritization helps secure infrastructure funding
    Trillions of dollars in federal infrastructure funding have been made available to state and local governments across the U.S. since early 2020. This money has been allocated to address the nation’s aging infrastructure, much of which is at or near the end of its useful life, and to bolster the U.S. economy in the wake […]
  • Climate bill lauded; predicted to reduce nation's carbon footprint by 40% within decade
    Amid yet another punishing heat wave, the sweeping Inflation Reduction Act, which was approved along party lines Sunday by the Senate, represents a historic step in the nation’s fight against climate change by drastically reducing its climate footprint—while injecting billions of dollars into cities and counties. Along with provisions that cap prescription drug costs for […]
  • Partnership launches no-cost wastewater monitoring service for local governments
    Of all the important lessons cities and counties have learned since the pandemic began, high up on the list is the value of working together. No one community can solve cross-jurisdictional challenges alone—that’s a concept that’s at the heart of a new initiative launched by the National League of Cities (NLC) and WastewaterSCAN that brings […]

Leave a comment Cancel reply

-or-

Log in with your American City and County account

Alternatively, post a comment by completing the form below:

Your email address will not be published. Required fields are marked *

Related Content

  • NLC releases State of Cities 2021 report
  • How governments can keep employees safe as they return to work
  • Lessons from your friendly neighborhood public service employees
  • North Texas alliance partners with Marketplace.city on smart government solutions

White papers


Modern American Perspectives on Law Enforcement

14th July 2022

Reimagine the Employee Experience

12th July 2022

How to Assemble a Rockstar Website Redesign Steering Committee

7th June 2022
view all

Events


PODCAST


Young Leaders Episode 4 – Cyril Jefferson – City Councilman, High Point, North Carolina

13th October 2020

Young Leaders Episode 3 – Shannon Hardin – City Council President, Columbus, Ohio

27th July 2020

Young Leaders Episode 2 – Christian Williams – Development Services Planner, Goodyear, Ariz.

1st July 2020
view all

Twitter


AmerCityCounty

$52B semiconductor investment intended to rejuvenate American manufacturing dlvr.it/SWPqHQ

10th August 2022
AmerCityCounty

How capital improvement project prioritization helps secure infrastructure funding dlvr.it/SWLQB7

9th August 2022
AmerCityCounty

Climate bill lauded; predicted to reduce nation’s carbon foot print by 40% within decade dlvr.it/SWHGQL

8th August 2022
AmerCityCounty

Partnership launches no-cost wastewater monitoring service for local governments dlvr.it/SW7N74

5th August 2022
AmerCityCounty

Investing in America’s onsite wastewater treatment systems for equity and sustainability dlvr.it/SW4Mb9

4th August 2022
AmerCityCounty

With passage of PACT Act, veterans service officers are preparing for an influx in applicants dlvr.it/SW4KTg

4th August 2022
AmerCityCounty

The 5 Procurement Superpowers Shaping the Future of Public Procurement dlvr.it/SW4DqT

4th August 2022
AmerCityCounty

This exclusive whitepaper presents the most recent nationwide data that give an unbiased view of how residents real… twitter.com/i/web/status/1…

3rd August 2022

Newsletters

Sign up for American City & County’s newsletters to receive regular news and information updates about local governments.

Resale Insights Dashboard

The Resale Insights Dashboard provides model-level data for the entire used equipment market to help you save time and money.

Municipal Cost Index

Updated monthly since 1978, our exclusive Municipal Cost Index shows the effects of inflation on the cost of providing municipal services

Media Kit and Advertising

Want to reach our digital audience? Learn more here.

DISCOVER MORE FROM INFORMA TECH

  • IWCE’s Urgent Communications
  • IWCE Expo

WORKING WITH US

  • About Us
  • Contact Us

FOLLOW American City and County ON SOCIAL

  • Privacy
  • CCPA: “Do Not Sell My Data”
  • Cookies Policy
  • Terms
Copyright © 2022 Informa PLC. Informa PLC is registered in England and Wales with company number 8860726 whose registered and Head office is 5 Howick Place, London, SW1P 1WG.
This website uses cookies, including third party ones, to allow for analysis of how people use our website in order to improve your experience and our services. By continuing to use our website, you agree to the use of such cookies. Click here for more information on our Cookie Policy and Privacy Policy.
X