Article ID: 3531
Last updated: 24 May, 2024
The document shows an example of recovery from an OODP snapshot in the case of a total zpool failure. The data is recovered to a newly created pool. The loss of a zpool is simulated by deleting it completely for the purpose of this document only. Do not remove the zpool on the production server. ConfigurationTwo Open-E JovianDSS instances are configured:
node-prod has a production backup task configured: Snapshots are made on production node node-prod and replicated to node-oodp: Pool-oodp contains the dataset dataset-oodp which is marked with “Ds” (Destination): We are simulating the zpool loss by deleting it (Just for the purpose of this article. Do not remove the production zpool!). There is no backup task on node-prod: Dataset on node-oodp is still marked as “Ds". And create a backup task on node-oodp with the destination server node-prod: After adding a backup task dataset-oodp is set as A B labeling it as a snapshot source: are replicated to node-prod (with the newly created Pool-prod-new): When snapshots are replicated, remove the backup task on node-oodp and check if the dataset is not marked as "Ds": Now it is possible to rollback the snapshot on node-prod - this way the data from the snapshot is recovered on the production node. The data can be accessed by adding a share to the recovered dataset: Connect to the share and check if the data is available. At this stage Pool-prod is recovered as Pool-prod-new.
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