Dell Unity: NTP server is partially unreachable messages generated after OE 5.2.0 upgrade (Dell Correctable)

Summary: After a Unity array is upgrades to 5.2.x there is a chance "NTP server is partially unreachable" will start generating on the array.

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

Review SP logs, and verify if there are multiple instances of
 NTP server is partially unreachable 
paired with
NTP server is reachable
within the hour.
B       06/23/22 09:00:03.840  20001 [WARN] User: NTP server is partially unreachable
B       06/23/22 10:00:04.527  20000 [INFO] User: NTP server is reachable
B       06/24/22 14:00:03.568  20001 [WARN] User: NTP server is partially unreachable
B       06/24/22 15:00:03.604  20000 [INFO] User: NTP server is reachable
B       06/24/22 23:00:03.825  20001 [WARN] User: NTP server is partially unreachable
B       06/25/22 00:00:03.633  20000 [INFO] User: NTP server is reachable
B       06/26/22 16:00:04.529  20001 [WARN] User: NTP server is partially unreachable
B       06/26/22 17:00:04.581  20000 [INFO] User: NTP server is reachable
B       06/28/22 10:00:04.528  20001 [WARN] User: NTP server is partially unreachable
B       06/28/22 11:00:04.639  20000 [INFO] User: NTP server is reachable
B       06/29/22 00:00:04.541  20001 [WARN] User: NTP server is partially unreachable
B       06/29/22 01:00:03.773  20000 [INFO] User: NTP server is reachable
B       06/30/22 06:00:04.548  20001 [WARN] User: NTP server is partially unreachable
B       06/30/22 07:00:03.712  20000 [INFO] User: NTP server is reachable

Multiple factors can cause the NTP server to become unreachable. During the investigation if other NTP messages are seen, or the server does not become reachable the customer may be hitting a different issue.

Cause

In Unity OE 5.2.x the array monitors configured NTP servers every hour. In the event the NTP server is not fully synced during that hour update a NTP server is partially unreachable message will generate. Once the NTP server is able to sync a 
NTP server is reachable 
message will be seen. 
The
NTP server is partially unreachable
 messages are warnings only, not an error on the Unity array. More investigation is needed to determine what external factors are causing the NTP server sync issue. 

Resolution

Dell is aware of this and is logging additional NTP messages to help identify and troubleshoot this in a future OE release. Contact Dell Technical Support , and quote this Dell Knowledge Base article ID.

Affected Products

Dell EMC Unity
Article Properties
Article Number: 000206054
Article Type: Solution
Last Modified: 03 Nov 2023
Version:  4
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