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NEW QUESTION # 55
What are the prerequisites for creating a Fault Set? (Choose two).
Answer: A,B
Explanation:
Fault Sets are a logical subdivision within a Protection Domain used to increase availability (e.g., ensuring that the three copies of data reside in three different racks).
Predefined Protection Domain (Option B): Fault Sets exist inside a Protection Domain. You cannot create a Fault Set floating in the void; it must be assigned to a parent Protection Domain.
At least 3 nodes in the cluster (Option A): PowerFlex uses a mesh-mirroring architecture. To guarantee availability, the system generally requires a minimum of 3 Fault Sets (so that if one fails, the data can be rebuilt to the other two). Since a Fault Set must contain at least one node, this implies a minimum requirement of 3 nodes (one per Fault Set) to utilize the feature effectively.
NEW QUESTION # 56
Which tool is used to replicate volumes between PowerFlex clusters?
Answer: C
Explanation:
PowerFlex uses a dedicated replication logic often referred to conceptually as the Replication Engine (technically implemented via the SDR - Storage Data Replicator component in v3, or integrated into the SDS in v4).
* Replication Engine (Option C): This component is responsible for intercepting writes to replicated volumes, bundling them, and transmitting them asynchronously (journal-based) to the remote destination cluster. It manages the Journal volumes, handles the bandwidth throttling, and ensures consistency between the source and target sites.
* Note: While "Storage Data Server" (B) does the work in v4, "Replication Engine" is the functional answer often used to describe the mechanism of cross-cluster data movement.
NEW QUESTION # 57
An administrator is preparing to upgrade a PowerFlex cluster. What steps should they follow to ensure success? (Choose two).
Answer: B,D
Explanation:
A successful upgrade relies on a stable starting state and a recovery plan.
Verify the cluster health status (Option D): This is the most critical pre-requisite. You must check the PowerFlex Manager dashboard or use the CLI (scli --query_cluster) to ensure the system state is "Optimal." You cannot proceed with an upgrade if the system is in a "Degraded" state or if a Rebuild/Rebalance is currently active, as taking a node offline for upgrade could lead to data unavailability.
Backup the current cluster configuration (Option A): In the rare event of a catastrophic failure during the upgrade (e.g., MDM database corruption), having a recent backup of the MDM configuration allows you to restore the cluster map and volume definitions.
NEW QUESTION # 58
Which components can be monitored via the PowerFlex GUI? (Choose two).
Answer: A,C
Explanation:
The PowerFlex Dashboard provides a high-level view of the storage environment.
* Storage pool health (Option B): The GUI displays the capacity usage (Used vs. Free) and the health status (Green/Red) of all Storage Pools. It highlights if a pool is running out of space or has failed drives.
* System performance metrics (Option D): The dashboard features real-time graphs showing IOPS (Input/Output Operations Per Second), Bandwidth (MB/s), and Latency (ms) for the overall cluster, as well as for individual volumes and SDS nodes.
Incorrect Options:
* VM Backups (C) are managed by backup software (PowerProtect/Veeam), not the storage array GUI.
* Network Latency (A) is usually a switch/network statistic. While PowerFlex shows I/O latency, it does not act as a general network monitoring tool for switch-level latency.
NEW QUESTION # 59
What steps are involved in adding a new node to a PowerFlex cluster? (Choose two).
Answer: B,D
Explanation:
* Validate network connectivity (Option A): Before adding a node, you must ensure it has valid IP addresses on the management and data networks and can reach the existing MDM cluster. Without this, the "Add Node" wizard will fail.
* Assign the node to an existing Protection Domain (Option B): During the add process, you must explicitly tell the system where this new node belongs. You assign it to a Protection Domain (and optionally a Fault Set). This tells the system which other nodes it should peer with for data mirroring.
NEW QUESTION # 60
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