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NS0-155 · Question #163

Which MetroCluster configuration procedure is recommended for re-establishing a mirrored volume that was in a level-0 resynchronization state when it failed?

The correct answer is B. Re-create the synchronous mirror. https://library.netapp.com/ecmdocs/ECMP1210206/html/GUID-A865DB95-9418-4ED2-A993- 74F347F674A0.html 1. Validate that you can access the remote storage by entering the following command: Note: A (level-0 resync in progress) message indicates that a plex cannot be rejoined. 2…

Data Protection and Recovery Operations

Question

Which MetroCluster configuration procedure is recommended for re-establishing a mirrored volume that was in a level-0 resynchronization state when it failed?

Options

  • ADetermine which volumes are at the remote and disaster sites.
  • BRe-create the synchronous mirror.
  • CRejoin the two volumes.
  • DTurn on power to the cluster node at the disaster site.

How the community answered

(47 responses)
  • A
    17% (8)
  • B
    72% (34)
  • C
    4% (2)
  • D
    6% (3)

Explanation

https://library.netapp.com/ecmdocs/ECMP1210206/html/GUID-A865DB95-9418-4ED2-A993- 74F347F674A0.html 1. Validate that you can access the remote storage by entering the following command: Note: A (level-0 resync in progress) message indicates that a plex cannot be rejoined. 2. Turn on the power to the node at the disaster site. After the node at the disaster site boots up, it displays the following: Waiting for giveback...(Press Ctrl-C to abort wait) 3. If the aggregates at the disaster site are online, take them offline by entering the following command for each aggregate that was split: aggr offline disaster_aggr disaster_aggr is the name of the aggregate at the disaster site. Note: An error message appears if the aggregate is already offline. 4. Destroy every target plex that is in a level-0 resync state by entering the following command: aggr destroy plex_name 5. Re-create the mirrored aggregates by entering the following command for each aggregate that aggr mirror aggr_name -v disaster_aggr aggr_name is the aggregate on the surviving site's node. disaster_aggr is the aggregate on the disaster site's node. The aggr_name aggregate rejoins the disaster_aggr aggregate to reestablish the MetroCluster configuration. 6. Enter the following command at the partner node: The node at the disaster site reboots.

Topics

#MetroCluster#synchronous mirror#disaster recovery#level-0 resynchronization

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