QuestionQ10

Troubleshoot

Map the Data Plane Impact when Pensando Policy and Services Manager (PSM) is deployed in high availability (HA) and an HA issue occurs.

Drag & Drop
One PSM node fails or becomes unreachable.
The management plane is down between a DSS and the PSM.
Two PSM nodes fail or become unreachable.
Explanation

PSM HA has three PSM VMs, so losing one preserves quorum and configuration updates continue. A DSS that cannot reach the PSM cannot receive configuration changes, although existing stateful data-plane services continue. Losing two PSM nodes removes quorum; the PSM prevents logins and configuration changes to avoid split brain, while existing stateful services remain unaffected.

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