Sign In Help
Schneider Electric
HelpLogin / Register

Invite a Co-worker

Send a co-worker an invite to the Exchange portal.Just enter their email address and we’ll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send Invite Cancel

Invitation Sent

Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Send New Invite Close
  • Home
  • Communities
  • :
  • SCADA & Telemetry Solutions
  • :
  • Geo SCADA Expert Forum
  • :
  • Synchronization of Triple Redundant or Triple Redundant with Permanent Standby Systems
Community Menu
  • Forums
    • By Topic
        • EcoStruxure Building
          • Field Devices Forum
        • EcoStruxure Power & Grid
          • Metering & Power Quality
        • EcoStruxure IT
          • EcoStruxure IT forum
        • Industrial Automation
          • Industry Automation and Control Forum
          • Alliance System Integrators Forum
          • Machine Solutions in the Digital Transformation
          • EcoStruxure Automation Expert / IEC 61499 Forum
          • Industrial Edge Computing Forum
          • Level and Pressure Instrumentation Forum
          • Modicon User Group
          • PLC Club Indonesia
          • SEE Automation Club Forum
          • Fabrika ve Makina Otomasyonu Çözümleri
          • Форум по промышленной автоматизации СНГ
          • Motorabgangstechnik & Antriebstechnik Forum
        • SCADA & Telemetry Solutions
          • Geo SCADA Expert Forum
          • SCADA and Telemetry Devices Forum
        • Power Distribution IEC
          • Power Distribution and Digital
          • Power Standards & Regulations
          • Solutions for Motor Management
          • Paneelbouw & Energie Distributie
          • Eldistribution & Fastighetsautomation
          • Elektrik Tasarım Dağıtım ve Uygulama Çözümleri
        • Power Distribution NEMA
          • US Utility Forum
        • Power Distribution Softwares
          • EcoStruxure Power Design Forum
          • LayoutFAST User Group Forum
        • Wireless Information Network Solutions
          • Instrument Area Network
          • Remote Monitoring
          • Tank Level Monitoring
          • Remote Data Collection
        • Solutions for your Business
          • Solutions for Food & Beverage Forum
          • Solutions for Healthcare Forum
    • By Segment
        • Food & Beverage
          • Solutions for Food & Beverage Forum
        • Healthcare
          • Solutions for Healthcare Forum
      • EcoStruxure Building
        • Field Devices Forum
      • EcoStruxure Power & Grid
        • Metering & Power Quality
      • EcoStruxure IT
        • EcoStruxure IT forum
      • Industrial Automation
        • Industry Automation and Control Forum
        • Alliance System Integrators Forum
        • Machine Solutions in the Digital Transformation
        • EcoStruxure Automation Expert / IEC 61499 Forum
        • Industrial Edge Computing Forum
        • Level and Pressure Instrumentation Forum
        • Modicon User Group
        • PLC Club Indonesia
        • SEE Automation Club Forum
        • Fabrika ve Makina Otomasyonu Çözümleri
        • Форум по промышленной автоматизации СНГ
        • Motorabgangstechnik & Antriebstechnik Forum
      • SCADA & Telemetry Solutions
        • Geo SCADA Expert Forum
        • SCADA and Telemetry Devices Forum
      • Power Distribution IEC
        • Power Distribution and Digital
        • Power Standards & Regulations
        • Solutions for Motor Management
        • Paneelbouw & Energie Distributie
        • Eldistribution & Fastighetsautomation
        • Elektrik Tasarım Dağıtım ve Uygulama Çözümleri
      • Power Distribution NEMA
        • US Utility Forum
      • Power Distribution Softwares
        • EcoStruxure Power Design Forum
        • LayoutFAST User Group Forum
      • Wireless Information Network Solutions
        • Instrument Area Network
        • Remote Monitoring
        • Tank Level Monitoring
        • Remote Data Collection
      • Solutions for your Business
        • Solutions for Food & Beverage Forum
        • Solutions for Healthcare Forum
      • Food & Beverage
        • Solutions for Food & Beverage Forum
      • Healthcare
        • Solutions for Healthcare Forum
  • Blogs
    • By Topic
        • EcoStruxure Power & Grid
          • Backstage Access Resources
        • Industrial Automation
          • Industry 4.0 Blog
          • Industrie du Futur France
        • SCADA & Telemetry Solutions
          • SCADA and Telemetry Blog
        • Power Distribution IEC
          • Power Events & Webinars
          • Power Foundations Blog
          • UK&I Residential and Commercial Electrical Distribution
        • Power Distribution NEMA
          • NEMA Power Foundations Blog
        • Power Distribution Softwares
          • EcoStruxure Power Design Blog
        • Solutions for your Business
          • Solutions for Food & Beverage Blog
          • Solutions for Healthcare Blog
          • Solutions for Retail Blog
          • Solutions for eMobility
          • Digital Hospital Solutions – UK&I
        • Knowledge Center
          • Industrial Automation How-to videos
          • Digital E-books
          • Success Stories Corner
        • Community experts & publishers
          • Publishers Community
    • By Segment
        • Food & Beverage
          • Solutions for Food & Beverage Blog
        • Healthcare
          • Solutions for Healthcare Blog
        • Retail
          • Solutions for Retail Blog
        • Retail
          • Solutions for eMobility
        • Retail
          • Digital Hospital Solutions – UK&I
      • EcoStruxure Power & Grid
        • Backstage Access Resources
      • Industrial Automation
        • Industry 4.0 Blog
        • Industrie du Futur France
      • SCADA & Telemetry Solutions
        • SCADA and Telemetry Blog
      • Power Distribution IEC
        • Power Events & Webinars
        • Power Foundations Blog
        • UK&I Residential and Commercial Electrical Distribution
      • Power Distribution NEMA
        • NEMA Power Foundations Blog
      • Power Distribution Softwares
        • EcoStruxure Power Design Blog
      • Solutions for your Business
        • Solutions for Food & Beverage Blog
        • Solutions for Healthcare Blog
        • Solutions for Retail Blog
        • Solutions for eMobility
        • Digital Hospital Solutions – UK&I
      • Knowledge Center
        • Industrial Automation How-to videos
        • Digital E-books
        • Success Stories Corner
      • Community experts & publishers
        • Publishers Community
      • Food & Beverage
        • Solutions for Food & Beverage Blog
      • Healthcare
        • Solutions for Healthcare Blog
      • Retail
        • Solutions for Retail Blog
      • Retail
        • Solutions for eMobility
      • Retail
        • Digital Hospital Solutions – UK&I
  • Ideas
        • Industrial Automation
          • Modicon Ideas & new features
        • SCADA & Telemetry Solutions
          • Geo SCADA Expert Ideas
          • SCADA and Telemetry Devices Ideas
  • Knowledge Center
    • Building Automation Knowledge Base
    • Industrial Automation Knowledge Base
    • Industrial Automation How-to videos
    • SCADA & Telemetry Solutions Knowledge Base
    • Digital E-books
    • Success Stories Corner
    • Power Talks
  • Events & Webinars
    • Innovation Talks
    • Innovation Summit
    • Let's Exchange Series
    • Technology Partners
  • Support
    • Ask Exchange
    • Leaderboard
    • Our Community Guidelines
    • Community User Guide
    • How-To & Best Practices
    • More
Join Now
How can we help?
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
52828members
Join Now
248166posts
Join Now

Synchronization of Triple Redundant or Triple Redundant with Permanent Standby Systems

Options
  • Subscribe to RSS Feed
  • Mark Topic as New
  • Mark Topic as Read
  • Float this Topic for Current User
  • Bookmark
  • Subscribe
  • Mute
  • Printer Friendly Page
Solved Go to Solution
Back to Geo SCADA Expert Forum
Solved
Hardin4019
Lieutenant Hardin4019
Lieutenant
‎2019-12-03 12:44 PM
0 Likes
5
1777
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2019-12-03 12:44 PM

Synchronization of Triple Redundant or Triple Redundant with Permanent Standby Systems

I can't find anywhere in the help files that specifically says it (at least in the way I am saying), but what I suspect, and believe I have observed first hand to be true is that a Standby or Permanent Standby server will only synchronize to the server that is currently Main and listed as a Partner in the Server Configuration. Is that accurate?

 

I'm working with a Triple Redundant with Permanent Standby system. When the Primary server fails, the Permanent Standby server goes offline waiting to connect. The Permanent Standby's Partners don't include the first Standby server that becomes main if the Primary server fails. The Permanent Standby server remains offline until the Primary server becomes main again.

Labels
  • Redundancy
  • SCADA
Tags (2)
  • Tags:
  • redundancy
  • synchronization
Share
Reply

Accepted Solutions
AdamWoodland
Commander AdamWoodland Commander
Commander
‎2019-12-03 02:40 PM
2 Likes
0
1767
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2019-12-03 02:40 PM

Re: Synchronization of Triple Redundant or Triple Redundant with Permanent Standby Systems

Yes, a server can only sync to a Main and as long as it is configured to see it

See Answer In Context

Share
Reply
  • All forum topics
  • Previous Topic
  • Next Topic
5 Replies 5
BevanWeiss
Sisko BevanWeiss
Sisko
‎2019-12-03 01:28 PM
0 Likes
0
1772
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2019-12-03 01:28 PM

Re: Synchronization of Triple Redundant or Triple Redundant with Permanent Standby Systems

Is this looking at the server status itself, or how it appears to ViewX clients?

There is this tick box in the Client Configuration dialog which will prevent connections to 'un-synchronised' servers from ViewX (or other clients using these settings).  This would include any 'standby' servers which are not actively connected to the Main server.

 

If you consider any ClearSCADA architecture, and remove the Main/Duty server, then you don't really have a valid ClearSCADA system.  Since 'Standby' really just means, 'Slave' to the Main (Duty/Active Database)... without a Main there is no valid ClearSCADA system, so nothing for the Standbys to be a slave to.  Them going Offline [or at least exiting the Standby state] (after the expiry of their heartbeat times etc) does make sense.  They should however resume their role as Standby after a Main is brought back up and they have synchronised to it.

Having them still serve 'data' (Config/Data/Historic Data/etc) which may actually not be at all related to the Main Database would typically not be the appropriate thing to do (after all, only the Main server is allowed to create records such as 'Last Known Value' / alarms etc)

 

ClearSCADA Connect to Synchronized Server Only.png

 

 


Lead Control Systems Engineer for Alliance Automation (VIC).
All opinions are my own and do not represent the opinions or policies of my employer, or of my cat..
Share
Reply
AdamWoodland
Commander AdamWoodland Commander
Commander
‎2019-12-03 02:40 PM
2 Likes
0
1768
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2019-12-03 02:40 PM

Re: Synchronization of Triple Redundant or Triple Redundant with Permanent Standby Systems

Yes, a server can only sync to a Main and as long as it is configured to see it

See Answer In Context

Share
Reply
JChamberlain
Lt. Commander JChamberlain Lt. Commander
Lt. Commander
‎2019-12-03 07:06 PM
1 Like
2
1762
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2019-12-03 07:06 PM

Re: Synchronization of Triple Redundant or Triple Redundant with Permanent Standby Systems

There is a tool on Resource Center that may help, link.

Share
Reply
Hardin4019
Lieutenant Hardin4019
Lieutenant
‎2019-12-04 07:35 AM
0 Likes
1
1749
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2019-12-04 07:35 AM

Re: Synchronization of Triple Redundant or Triple Redundant with Permanent Standby Systems

Thanks for confirming and sharing the links guys.

Share
Reply
sbeadle
Sisko sbeadle Sisko
Sisko
‎2019-12-05 02:17 AM
3 Likes
0
1727
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2019-12-05 02:17 AM

Re: Synchronization of Triple Redundant or Triple Redundant with Permanent Standby Systems

1) a Main server can send database sync data to 5 other servers max, 2 standby max and 4 standby-only max. (e.g. total 2 Main/Standby and 4 Standby-only or 3 Main/Standby and 3 Standby-Only)

2) BUT a Standby server can be synced from a max of two servers.

This means that a standby-only can be synced from only two of a triple server set, which is why that link in the post above is needed, which is a tool to "switch parents" of a Standby-Only.

Share
Reply
Related Products
Schneider Electric
EcoStruxure™ Geo SCADA Expert
Top Experts
User Count
sbeadle
Sisko sbeadle Sisko
188
BevanWeiss
Sisko BevanWeiss
56
AndrewScott
Lt. Commander AndrewScott
17
AdamWoodland
Commander AdamWoodland Commander
17
JChamberlain
Lt. Commander JChamberlain Lt. Commander
16
geoffpatton
Lt. Commander geoffpatton
10
See More Top Experts
Find a Service Provider
Find a certified partner to help you address your integration, installation, maintenance and project needs.
View all Providers
Support

Have a question? Please contact us with details, and we will respond.

Contact Us
FAQ

Look through existing questions to find popular answers.

Learn More
About

Want to know more about Exchange and its possibilities?

Learn More

Full access is just steps away!

Join Exchange for FREE and get unlimited access to our global community of experts.

Connect with Peers & Experts

Discuss challenges in energy and automation with 30,000+ experts and peers.

Get Support in Our Knowledge Base

Find answers in 10,000+ support articles to help solve your product and business challenges.

Ask Questions. Give Solutions

Find peer based solutions to your questions. Provide answers for fellow community members!

Register today for FREE

Register Now

Already have an account?Log in

About Us FAQ Terms & Conditions Privacy Notice Change your cookie settings
©2021, Schneider Electric