Dell NativeEdge: Cluster instability when storage network bonds share the same subnet
Summary: In Dell NativeEdge version 4.0.0.0, disabling a storage network bond on one node in a three-node cluster caused the remaining two nodes to panic almost simultaneously, resulting in cluster outage. This issue is linked to network configuration where management and storage bonds share the same subnet without Virtual Local Area Network (VLAN) isolation. ...
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Symptoms
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In a Dell NativeEdge v4.0.0.0 three-node cluster, disabling the storage bond on one node caused the other two nodes to restart unexpectedly.
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The cluster became unhealthy, leading to service disruption.
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Kernel logs indicated stopped responding tasks and Ceph monitored re-election loops before panic occurred.
Cause
When management and storage networks share the same subnet without VLAN isolation, traffic is not properly separate. Disabling the storage bond on one node triggered instability in the Ceph quorum and caused kernel-level issues on other nodes.
Resolution
Workaround:
- Configure management and storage networks on separate subnets and VLANs to ensure isolation.
- Avoid disabling storage bonds during cluster operations unless proper network separation is in place.
Affected Products
NativeEdge SolutionsArticle Properties
Article Number: 000399348
Article Type: Solution
Last Modified: 22 شعبان 1447
Version: 1
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