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NEW QUESTION # 15
Which tasks can be performed using PowerFlex Manager (PFxM)? (Choose two)
Answer: B,D
Explanation:
PowerFlex Manager (PFxM) is the unified management and orchestration tool for the PowerFlex environment. Its capabilities are distinct from virtualization managers like vCenter or backup software like PowerProtect.
Lifecycle Management (LCM): This is a core function of PFxM. It automates the entire lifecycle of the hardware and software stack. This includes discovering nodes, defining services (templates), and automating the complex process of upgrades. PFxM orchestrates non-disruptive upgrades (NDU) by interacting with the nodes to enter Maintenance Mode, update firmware/BIOS/OS/PowerFlex software, and return them to service sequentially.
Monitoring Cluster Performance and Health: PFxM acts as a central dashboard. It aggregates alerts, events, and performance metrics from the underlying PowerFlex cluster. It provides health scores for the System, Compliance, and Resources, allowing administrators to visually identify bottlenecks or hardware failures (like a failed drive or disconnected NIC) in real-time.
NEW QUESTION # 16
Which specific operations can be performed on PowerFlex volumes? (Choose two)
Answer: A,B
Explanation:
PowerFlex Volumes are block-level storage devices mapped to hosts.
Create Snapshots (Option A): Snapshots are point-in-time copies of a volume. In PowerFlex, snapshots are writable and instantaneous. They share the same data blocks as the source volume until changes are made (Redirect-on-Write). They are essential for backups, testing/dev environments, and creating clones.
Enable Data Replication (Option D): PowerFlex supports native asynchronous and synchronous replication. This is configured at the Volume level (or via Consistency Groups containing volumes). You select a volume and pair it with a destination volume on a remote PowerFlex cluster to ensure disaster recovery.
NEW QUESTION # 17
An administrator is preparing to upgrade a PowerFlex cluster. What steps should they follow to ensure success? (Choose two).
Answer: A,C
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 # 18
What is the minimum bandwidth requirement for replicating volumes between PowerFlex clusters?
Answer: A
Explanation:
* 100 Mbps: While PowerFlex replication is highly efficient and only sends unique data chunks (deltas), the supported minimum reliable bandwidth for a WAN link between clusters is typically 100 Mbps.
* Reasoning: Below this speed, even moderate change rates in a production database would likely cause the replication journal to fill up faster than data can be drained to the remote site. This would lead to a
"Buffer Full" state, causing the replication to pause or the system to lose its Recovery Point Objective (RPO) compliance.
NEW QUESTION # 19
During maintenance, an administrator needs to safely remove an SDS node from a PowerFlex cluster without impacting data availability. What is the correct first step?
Answer: D
Explanation:
Placing the SDS into maintenance mode ensures data is rebalanced and redundancy is maintained before removal. Powering off abruptly risks data loss or degraded protection. Proper maintenance procedures ensure cluster stability and availability.
NEW QUESTION # 20
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