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Which three statements are correct about cluster configuration of ZFS Storage Appliances?
D: Many people use the terms active-active to describe a cluster in which there are two (or more) storage pools, one of which is assigned to each head along with network resources used by clients to reach the data stored in that pool, and active-passive to refer to which a single storage pool is assigned to the head designated as active along with its associated network interfaces. Both topologies are supported by the Oracle ZFS Storage Appliance.
Identify two classes of resources within the Oracle ZFS Appliance cluster.
Identify two options that you can select when customizing Status Dashboard performance graphs.
Status Dashboard Settings
The Status > Settings screen enables you to customize the Status Dashboard, including the statistics that appear and thresholds that indicate activity through the weather icons.
Use the layout tab to select the graphs that appear in the dashboard activity area, as defined in the following table.
References:
https://docs.oracle.com/cd/E71909_01/html/E71919/goosp.html
Which hardware failure cannot be prevented by the No Single Point of Failure feature on a ZFS Storage Appliance?
Adding a single JBOD to a double parity RAID-Z NSPF config makes it impossible to preserve NSPF characteristics. However, you can still add the JBOD and create RAID stripes within the JBOD, sacrificing NSPF in the process.
References:
https://docs.oracle.com/cd/E51475_01/html/E52872/godge.html
What happens to a shadow migration job if a pool is failed over in a cluster, or both system disks fail and a new head node is required while using the shadow migration feature?
Explaation:
Shadow migration is implemented using on-disk data within the filesystem, so there is no external database and no data stored locally outside the storage pool. If a pool is failed over in a cluster, or both system disks fail and a new head node is required, all data necessary to continue shadow migration without interruption will be kept with the storage pool.
References:
https://docs.oracle.com/cd/E51475_01/html/E52872/shares__shadow_migration___shadow_migration_.html
