HPE7-J02 Sample Questions Answers

Detailed Explanation:

Rationale for Correct Answer:

The SAF (Storage Assessment Framework) requires engineers to manually email the collected assessment data to HPE for processing. This is different from fully automated tools like CloudPhysics or Backup assessments that integrate directly with portals. This distinction is important for new engineers performing customer assessments.

Distractors:

A: Backup assessments are usually tool-driven (StoreOnce, RMC, etc.) and automated.

C: Non-HPE assessments are outside scope and not part of HPE standard process.

D: CloudPhysics is fully automated and cloud-based — no manual email required.

Key Concept: SAF = requires manual email submission to HPE.

Detailed Explanation:

Rationale for Correct Answer:

For HPC and AI/ML workloads, NFS over RDMA (Remote Direct Memory Access) provides significantly lower latency and reduced CPU overhead compared to standard NFS over TCP. This allows direct memory-to-memory data transfers between storage and compute nodes, bypassing the kernel network stack. In VAST Data (underpinning GreenLake for File Storage), NFS over RDMA is explicitly supported to accelerate shared dataset access in HPC and AI environments.

Distractors:

A: Standard NFS introduces more latency due to kernel TCP/IP stack overhead.

C: RoCE (RDMA over Converged Ethernet) is a transport layer technology — useful, but the protocol chosen for the file system must be NFS over RDMA, not just RoCE.

D: iSER (iSCSI Extensions for RDMA) enhances iSCSI block storage, not NFS file workloads.

Key Concept: NFS over RDMA for HPC/AI shared datasets.

Detailed Explanation:

Rationale for Correct Answer:

The Simulator for VM Rightsizing Card Deck in HPE CloudPhysics evaluates actual VM utilization against provisioned resources. It identifies under- and overprovisioned VMs, providing insights into reclaimable resources and accurate sizing recommendations. This directly helps plan server and storage upgrades.

Distractors:

A: Storage Space Management focuses on datastore usage trends, not provisioning mismatches.

B: Reclaimable VMware vDisk Space identifies unused storage, not CPU/RAM sizing.

D: Infrastructure Planning helps plan new builds but doesn’t directly analyze current over/under provisioning.

Key Concept: VM Rightsizing = CloudPhysics tool for over/under provisioning analysis.

Detailed Explanation:

Rationale for Correct Answer:

When using Zerto Move, unlike a typical disaster recovery failover, the migration process allows the source VMs to be retained after cutover. This is useful when testing or validating the migration. In contrast, failover scenarios typically assume the source environment has failed or is decommissioned. Therefore, keeping source VMs is a differentiator for Move.

Distractors:

A: Checkpoints and RPO are controlled by Zerto replication but are not selectable per migration cutover in this way.

B: Source VMs are not deleted automatically; this is intentionally avoided to allow rollback.

D: While Zerto does provide low RPO/RTO (seconds to minutes), this applies mainly to DR failover, not migration cutovers.

Key Concept: Zerto Move vs Zerto Failover semantics.

Detailed Explanation:

Rationale for Correct Answer:

In Alletra 6000 Peer Persistence environments, operations like resizing Peer Persistence volumes must be performed via the HPE Data Services Cloud Console (DSCC), which manages volume collections and replication consistency groups. Attempting to grow the upstream volume locally will fail because the changes need to propagate across both sites consistently.

Distractors:

A/B: Removing upstream or downstream volumes would break replication and is not required.

D: Expanding in VMware only extends the VMFS datastore, not the underlying replicated volume.

Key Concept: Peer Persistence volume resizing is done in DSCC, not local web GUI.

Detailed Explanation:

Rationale for Correct Answer:

In the exhibit, several paths show “Standby” and some appear “Dead”, while only a subset is Active (0). This typically indicates that one storage controller may be missing or offline, which reduces redundancy and can cause performance degradation. In a healthy Peer Persistence environment, both controllers should present active and non-optimized paths.

Distractors:

A & B: Having multiple active paths does not inherently reduce performance; in fact, MPIO load balances traffic. The issue here is path failures, not excessive active paths.

Key Concept: MPIO pathing in HPE Peer Persistence and controller health.

Detailed Explanation:

Rationale for Correct Answer:

HPE StoreOnce Dual Authorization prevents a single administrator from deleting, expiring, or modifying backup data. Instead, any destructive action requires approval from a second administrator, mitigating insider threats and accidental deletions. This is the correct feature for immutability protection in a replicated StoreOnce environment.

Distractors:

B (CHAP): Used for iSCSI authentication, not backup immutability.

C: Encryption protects data confidentiality, not accidental deletion.

D: Resource restrictions are policy-driven but don’t enforce dual control over destructive actions.

Key Concept: Dual Authorization for ransomware and insider-threat protection on StoreOnce.

Detailed Explanation:

Rationale for Correct Answer:

HPE Alletra with InfoSight provides end-to-end visibility from infrastructure through to virtual machines and applications. It offers prescriptive, AI-driven recommendations to simplify management — a key differentiator for startups with small IT staff. Pure arrays do not offer the same level of integrated, cross-stack predictive analytics.

Distractors:

B: “ActiveWorkload” is not an HPE feature — HPE uses Peer Persistence for stretch clusters.

C: Garbage collection is managed automatically in HPE arrays; disabling it is not supported.

D: Data tiering is not natively provided as “software-only” — HPE uses GreenLake and Alletra services.

Key Concept: InfoSight = predictive analytics and app-to-infra visibility differentiator.

Detailed Explanation:

Rationale for Correct Answer:

In B-Series (Brocade) SAN switches, trunking requires that all ports in a trunk group belong to the same port group (same ASIC) and run at the same speed. This ensures frame ordering and load balancing across ISLs.

Distractors:

A: Incorrect — cable length differences must be minimal, but not stated in meters like this.

C: Incorrect — speeds must match across all trunked ports.

D: Trunking requires a license on some Brocade models; not always enabled by default.

Key Concept: Port trunking requires same port group and same speed.

Detailed Explanation:

Rationale for Correct Answer:

Alletra 6000 expansion shelves connect via 24G SAS back-end connectivity. The BOM must include the required SAS cables to properly attach the shelf. If only the shelf is listed, it’s incomplete — SAS connectivity accessories must be added.

Distractors:

B: The supported max capacity is higher than 138TB + 46TB, so it won’t exceed limits.

C: Expansion shelves don’t use OCP adapters; they rely on SAS backend ports.

D: QSFP+ DACs are used for front-end networking (iSCSI/FC), not SAS shelf expansion.

Key Concept: Alletra 6000 expansions require 24G SAS cables included in the BOM.

Detailed Explanation:

Rationale for Correct Answer:

The exhibit shows an Alletra MP configuration delivering ~4.6 GB/s (256 KB sequential read) with four 10 Gb host ports. That throughput is close to the aggregate front-end bandwidth ceiling of 4×10 GbE (≈5 GB/s raw, less with protocol overhead). For large-block sequential workloads, the front-end link budget is often the bottleneck; adding additional 10 GbE ports (or moving to higher-speed links) increases available host bandwidth and raises sustained sequential read throughput. This aligns with HPE sizing guidance: scale host connectivity to meet sequential throughput targets before adding media.

Analysis of Incorrect Options (Distractors):

B: Adding a third node isn’t applicable to a 2-node HA block pair and would not address a front-end bandwidth limit.

C: More controller cores don’t raise link-level throughput if host I/O is already constrained by port bandwidth.

D: Adding NVMe media primarily boosts IOPS/parallelism; sequential read is bounded here by front-end ports.

Key Concept: Sequential throughput is front-end bandwidth bound; scale host ports to increase GB/s.

Detailed Explanation:

Rationale for Correct Answer:

HPE CloudPhysics begins collecting performance and capacity data immediately after deployment of the Observer VM/collector. Some initial assessment results (e.g., environment inventory, early utilization stats) can be visible within 2 hours, while deeper trending insights require longer data collection (days/weeks).

Distractors:

B: Tokens are not required for customers to view results; reports are available via the portal.

C: Customers get a full dashboard view of results, not partial.

D: Assessments can run for longer periods (days–weeks), not fixed at 5 days.

Key Concept: CloudPhysics delivers initial insights within hours.