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NEW QUESTION # 89
Which PowerFlex feature allows the sharing of storage data across multiple nodes?
Answer: D
Explanation:
PowerFlex is primarily a block storage solution, but it supports File Services (PowerFlex File) to allow data sharing across multiple nodes.
* PowerFlex File (Shared File Systems): This architecture adds NAS (Network Attached Storage) capabilities to the PowerFlex cluster. It utilizes NAS Nodes (which can be physical or virtual) that consume PowerFlex block volumes and format them with a file system. These file systems are then exposed to clients via standard protocols like NFS (Network File System) for Linux/Unix and SMB (Server Message Block) for Windows. This allows multiple compute nodes or users to read and write to the same logical storage space simultaneously.
* Why not the others?
* Fault Sets are for logical isolation of resources to ensure high availability, not for data sharing.
* Storage Pools are groupings of physical drives to define performance tiers, not the mechanism for file sharing.
* Replication is for disaster recovery (copying data to a remote site), not for active sharing within a cluster.
NEW QUESTION # 90
What steps are required to configure a Storage Pool? (Choose two).
Answer: A,D
Explanation:
A Storage Pool is a logical entity that aggregates the capacity of physical devices.
Define the Protection Domain (Option A): The Storage Pool hierarchy is strict. You must first create a Protection Domain (PD), which groups the SDS nodes. The Storage Pool is then created within that Protection Domain. You cannot create a Storage Pool without this parent container.
Assign drives with similar performance characteristics (Option B): This is a critical configuration requirement. PowerFlex stripes data across all drives in a pool. If you mix NVMe and SATA drives in the same pool, the fast NVMe drives will wait for the slow SATA drives, dragging the entire pool's performance down to the lowest common denominator (the "straggler" effect).
Therefore, standard procedure is to create separate pools for separate media types (e.g.,
"Performance_Pool" for NVMe, "Capacity_Pool" for HDD).
NEW QUESTION # 91
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.
Incorrect Options:
* VLAN tagging (B): This is a network configuration performed at the OS/Switch/Interface level, not on a storage block volume.
* Assign to PD (C): Volumes reside inside a Storage Pool, which resides inside a Protection Domain.
You assign a volume to a Storage Pool upon creation, not directly to a Protection Domain.
NEW QUESTION # 92
What is the primary purpose of snapshots in PowerFlex?
Answer: C
Explanation:
* Enable point-in-time data recovery (Option B): A snapshot freezes the state of a volume at a specific second. If data is subsequently corrupted, deleted, or encrypted by ransomware, the administrator can use the snapshot to restore the data exactly as it was at that "point in time," minimizing data loss.
NEW QUESTION # 93
Snapshots in PowerFlex are created in a writable state by default.
Answer: B
Explanation:
In many legacy storage arrays, a snapshot is a read-only "view" of the data, and if you want to mount it and write to it (for testing or database recovery), you must create a "Clone" or "linked clone" from that snapshot.
PowerFlex differs here. A PowerFlex snapshot is technically just another volume. It is fully writable immediately upon creation. It uses a redirect-on-write mechanism. If a host mounts a snapshot and writes to it, the new data is written to new blocks, diverging from the source volume. This makes PowerFlex snapshots extremely agile for DevOps and CI/CD workflows where writable copies are needed instantly.
NEW QUESTION # 94
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