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This article applies to all JSDR software versions.

Problem

A failback operation may not be able to complete if a host in the cluster is offline or faulty host exists in a cluster. 

Error Message we encounter.

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Scenarios 1:

In a Multi.

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Example of a problem completing failback.

Issue

Failure Scenarios

The following scenarios illustrate cases that result in the failure of the failback operation.

Faulty Node

  • In a multi-node cluster, if one node is faulty then

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  • failback will not start.

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IO Filter Unavailable

  • In a

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  • multi-node cluster, all hosts are healthy but one node's IO filter is unavailable.

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  • Failback will not start.

The Failback will be successful in the below scenarios:

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Success Scenarios

Maintenance Mode

  • In a

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  • multi-node cluster, all hosts are healthy but one host is in maintenance mode.

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Scenarios 2:

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  • Failback will be able to continue.

Faulty Host Corrected

  • In a multi-node cluster, one host is faulty and

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  • that faulty host is replaced with a healthy host.

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  •  Failback will be able to continue.

Faulty Host Removed

  • In a

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  • multi-node cluster,

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  • one host is faulty and

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  • that faulty host is removed from the cluster (

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  • removed from inventory).

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  •  Failback will be able to continue.