In Oracle Extended RAC can inaccessibility of quorum failgroup cause node eviction

We have scheduled storage controller firmware upgrade, which will be in rolling fashion. Storage team says, there shouldn't be any LUN availability from this array.

We have multiple Extended Oracle RACs running, where the quorum disks are coming from this array.

So would like to know in case of any adversities, if the quorum failgroup becomes inaccessible, do we run into a risk of node eviction.

And to resolve this issue, can we manually bring down one node before storage upgrade. So that even if quorum goes offline, application can maintain all its connections.

Please advise.

Regards,
Sourav Biswas

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