PowerScale: Isilon: OneFS: OneFS Event Notification: Multiple internal network problems detected - Event ID: 200020003, 200020007, 900160001

Summary: Isilon OneFS: OneFS Event Notification: Multiple internal network problems detected - Event ID: 200020003, 200020007, 900160001

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Instructions

Issue
EMC Isilon Technical Support received an alert indicating that multiple internal network problems were detected (Event reference ID: 200020003) in your cluster.
See Isilon OneFS Event Reference for Technical Support for related event reference information.


Context
There is an issue with the InifiBand cable or port.


Resolution
Perform the following steps in the order listed. If the issue resolves after a step, there is no need to complete the subsequent steps.
1. If internal network issues are not ongoing and this issue is not a recurring problem, attempt the following steps:
a- Make sure that all InfiniBand (IB) cables in the rack and in adjacent racks are connected securely to the node and are undamaged.
b- Make sure there are no kinks or sharp bends in the cables. InfiniBand (IB) cables have an approximate maximum bend radius of 1.5 inches (38mm).
2. If internal network issues are ongoing but do not continually recur, attempt the following steps.
a- Determine whether the issue is related to the cable or the node. Plug the affected cable into another node that has a functioning network port and an identical network configuration. Be sure to plug the cable into the same network port on the different node.
b- If the issue persists after plugging the cable into a different node, replace the cable.
c- If the issue persists after replacing the cable, move the cable to another port on the switch.
d- Confirm that multiple clusters are not connected to the same IB switch. This configuration is unsupported and can cause this issue. Each cluster must be connected to a dedicated IB switch.

If the event persists, gather logs, and then contact Dell EMC Isilon Technical Support for additional troubleshooting, for instructions, see KB article: 304468.

Affected Products

Isilon

Products

Isilon, PowerScale OneFS
Article Properties
Article Number: 000019553
Article Type: How To
Last Modified: 01 Nov 2022
Version:  5
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