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Question 18

The motherboard of Node-01 is being replaced. To perform this task, a takeover was Initiated from
Node-02. Node-02 panics showing the string below.
PANIC; Permanent errors on all HA mailbox disks (while marshalling header) in SKprocess
fnmbx_instanceWorker on release 9.5P8 (C)
What has happened in this situation?

  • A. While in maintenance mode, the sldiag device show command was executed.
  • B. While in maintenance mode, the fcadmin device_map command was executed.
  • C. While in maintenance mode, the HA_config show command was executed.
  • D. While in maintenance mode, the mailbox destroy local command was executed.
Answer:

B


User Votes:
A
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B
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C
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D 1 votes
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Dinker
4 months ago

Explanation:
The mailbox disks are the first two disks of the root aggregate on each node of an HA pair. They store the HA state information and the panic dump files. The mailbox disks are used for communication between the HA partners and for takeover and giveback operations1
The mailbox destroy local command is used to destroy the mailbox disks on the local node. This command is only available in maintenance mode and should be used with extreme caution. The command is intended for situations where the mailbox disks are corrupted or inaccessible and need to be recreated2
If the mailbox destroy local command is executed on a node that is in takeover mode, the node will panic with the message “Permanent errors on all HA mailbox disks”. This is because the node will lose the HA state information and the panic dump files of the partner node, and will not be able to communicate with the partner node or perform a giveback operation3
Therefore, if the motherboard of Node-01 is being replaced

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