Hello everyone, I need urgent assistance with our Logic 5575 system set up in hot standby mode. We are facing an issue where the primary unit is unable to sync with the secondary unit. The synchronization process starts but gets stuck at 54% consistently. We have attempted to resolve the issue by rebooting the secondary chassis, replacing the CPUs, and changing the RM module. Despite these efforts, we are still unable to determine the root cause of the problem, especially considering the system was functioning smoothly until now. If anyone has any insights or suggestions, please share them as soon as possible.
Have you checked the Redundancy Configuration Tool in the event logs? Are both processors connected in a DLR ring? Make sure to monitor the DLR's health in this case.
Indeed, the PLC pairs are functioning properly here. However, we also have other PLC pairs in operation that are performing well. Is it possible that there is still a problem with the DLR?
QasimFSH mentioned the possibility of issues with a DLR affecting synchronization. It is important to monitor the health of the DLR to prevent any hang-ups in the synchronization process. Despite this, other PLC pairs are still working fine. It is recommended to check the event logs in the configurator for further insights. Furthermore, losing one leg of the DLR can impact the redundancy synchronization process, so it is crucial to address any potential issues promptly.
Could you please provide me with the tech note ID so I can review it? Thank you.
The last time I encountered a similar issue, it was due to a malfunctioning EN2TR component in one of the equipment racks. This issue can often be attributed to faulty hardware.
Hey there, sorry to hear about your issue. From what you've shared, you've already done some serious troubleshooting. One possibility that comes to mind is that there might be an issue with the configuration of the sync settings. Also, please check if there's any recent software patch or update that was installed - sometimes they might cause unforeseen problems with the setup. Alternatively, the sync issue could be due to any firewall or protection software that's blocking certain data transactions between your primary and secondary unit. Give these a look, and continue sharing your progress here.
Hey there, I had a similar experience with our Logic 5575 system a few months back. We also kept getting stuck at a certain percent during the sync process. What worked for us was not only rebooting the systems, but also ensuring that both units were running the exact same firmware version. Out-of-sync firmware versions, even minor ones, can sometimes cause hiccups during the synchronization process. Might be worth double checking if both units have the same firmware version. Also, have you inspected the communication cables and connections for any possible physical damage? Sometimes, the simplest things are overlooked. Hope this helps!
It sounds frustrating to be stuck at that 54% mark! Have you checked the connection between the primary and secondary units, like the network settings or cables? Sometimes, discrepancies in configurations or IP address conflicts can cause syncing issues. Also, consider looking at the logs for any error messages during the synchronization process; they might give you a clue. If you haven’t already, reaching out to your vendor's support could also be a good step, as they might know specific quirks with that version of the Logic 5575. Good luck!
Have you checked the network settings and connections between the units? Sometimes, issues like this can arise from mismatched configurations or connectivity problems that might not be obvious at first. It could also be worth looking into any recent updates or changes made to the system that might have inadvertently affected synchronization. If all else fails, reviewing the logs for any error messages during the sync process could provide more clues. Good luck!
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Answer: - The synchronization process getting stuck at 54% could indicate a potential issue with the communication or configuration between the primary and secondary units.
Answer: - The user mentioned attempting to resolve the problem by rebooting the secondary chassis, replacing the CPUs, and changing the RM module. These are common troubleshooting steps to address synchronization issues.
Answer: - Determining the root cause of the issue may require further investigation into the network configuration, firmware compatibility, software settings, or potential hardware failures that could be affecting the sync process.
Answer: - To ensure smooth operation in a redundancy setup, it is essential to regularly monitor system performance, conduct routine maintenance checks, and promptly address any synchronization issues as they arise to prevent system downtime.
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