Connectrix: MDS-Series: Configuration Save times Out at 99% during "copy running-config startup-config"
Summary: Configuration save attempts keep timing out at 99% with the "copy running-config startup-config" command.
This article applies to
This article does not apply to
This article is not tied to any specific product.
Not all product versions are identified in this article.
Symptoms
Unable to run
copy r s or collect show tech-support details:
show logging log : 2024 Jan 14 01:15:59 Switch %SYSMGR-3-CFGWRITE_SRVTIMEOUT: Service "snmpd" failed to store its configuration in the timeout period 2024 Jan 14 01:15:59 Switch %SYSMGR-2-CFGWRITE_ABORTED: Configuration copy aborted. 2024 Jan 14 01:15:59 Switch %SYSMGR-3-CFGWRITE_FAILED: Configuration copy failed (error-id 0x401E0045). Switch# sh system internal mts buffers summary node sapno recv_q pers_q npers_q log_q sup 28663 0 0 1 0 sup 25970 0 0 1 0 sup 28 179 0 0 0 >>> SAP #28 is SNMPSeveral commands are not returning the prompt or any results.
Cause
Simple Network Management Protocol (SNMP) daemon (SAP#28) is stuck in the active supervisor. This should have dropped once it was finished, but it did not which is causing the issue.
Resolution
Perform a
For either option, path redundancy, running-configuration back-up is recommended as a best practice.
system switchover (non-disruptive) or switch reload (disruptive) to clear stuck mts buffers.
For either option, path redundancy, running-configuration back-up is recommended as a best practice.
- Back up the running-config and startup-config to an external server.
- Issue a:
system switchover
- If the
system switchoverdoes not resolve the issue, then schedule a:
switch reload
Additional Information
What happens when a message gets stuck?
A message gets stuck when it cannot be delivered to the destination process. It is a consequence of a failing process rather than an issue of itself. It happens when a destination process becomes unresponsive or crashes.
Messaging and Transaction Service (MTS): It acts as a messaging Broker agent for inter-process communications. These communications include event notification, synchronization, and message persistency between system services and system components. The MTS buffer is the queue for MTS messages, and all inter-process messages go through it.
Service Access Point (SAP): It is a unique identifier that allows processes to communicate with each other. The term "sapno" in the MTS buffer details indicates the SAP ID assigned to each process. When a process wants to send a message to another process, it uses MTS, which sees that a message from a certain SAP ID is being sent to another SAP ID.
For example, in the command output:
A message gets stuck when it cannot be delivered to the destination process. It is a consequence of a failing process rather than an issue of itself. It happens when a destination process becomes unresponsive or crashes.
Messaging and Transaction Service (MTS): It acts as a messaging Broker agent for inter-process communications. These communications include event notification, synchronization, and message persistency between system services and system components. The MTS buffer is the queue for MTS messages, and all inter-process messages go through it.
Service Access Point (SAP): It is a unique identifier that allows processes to communicate with each other. The term "sapno" in the MTS buffer details indicates the SAP ID assigned to each process. When a process wants to send a message to another process, it uses MTS, which sees that a message from a certain SAP ID is being sent to another SAP ID.
For example, in the command output:
show system internal mts buffer summary "node" could be - sup, lc, sup-X, "sapno" defines the source process "recv_q" "pers_q" "npers_q" "log_q" are the types of messaging queues of the process.
Affected Products
Connectrix MDS-SeriesArticle Properties
Article Number: 000228384
Article Type: Solution
Last Modified: 28 May 2025
Version: 2
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.