HP HPE7-J02 - Advanced HPE Storage Integrator Solutions Written Exam

Detailed Explanation:

Rationale for Correct Answer:

HPE Peer Persistence is supported over distances of up to 150–200 km, as long as the round-trip latency is ≤10ms. Therefore, even after relocation to 150km, Peer Persistence remains supported provided latency requirements are met.

Distractors:

B: RC (Remote Copy) transport is already the underlying technology, but no change is required.

C: Peer Persistence is already an active-active design; no change to “active” mode is needed.

D: Distance does not exceed the supported range; only latency matters.

Key Concept: Latency <10ms is the critical requirement for Peer Persistence.

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:

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:

In Brocade (HPE B-Series) SAN switches, FCIP trunking allows multiple IP circuits to be aggregated. This increases bandwidth and provides resiliency (if one link fails, traffic continues over remaining paths). It is the correct statement regarding HPE’s FCIP feature set.

Distractors:

B: High availability still requires redundant fabrics; FCIP trunking alone doesn’t replace fabric design best practices.

C: FCIP can run over shared IP WANs; no need for dedicated links.

D: Encryption adds overhead; performance impact exists (although minimal with hardware offload).

Key Concept: FCIP trunking = bandwidth + availability for multisite SAN.

Detailed Explanation:

Rationale for Correct Answer:

HPE Alletra 6000 is a scale-out architecture array. Adding more arrays to a single scale-out group increases both performance (IOPS, throughput) and capacity, while maintaining single-pane management via HPE Data Services Cloud Console. This is the most efficient way to address both capacity growth and latency reduction for SQL workloads.

Distractors:

B: Adding NICs may help with throughput but not backend latency or capacity scaling.

C: Flash-to-cache ratios can optimize read caching but don’t fundamentally increase system-wide performance.

D: Timeless storage is a procurement/licensing option, not a performance/capacity scaling method.

Key Concept: Alletra 6000 scale-out clustering for balanced growth of capacity and performance.

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:

From the exhibit, the system shows maximum estimated IOPS performance (over 250K IOPS read, 115K IOPS mixed, 62K write). These values align with HPE’s published performance specifications for this model with full cores enabled. The network interface count and disk count are balanced relative to controller capability. Therefore, no further upgrades are required to achieve maximum performance.

Distractors:

A: Adding NICs/HBAs may improve throughput but will not exceed controller-bound IOPS.

B: Adding disks increases capacity, not peak IOPS, as performance is primarily controller-driven.

D: The system already matches controller capability; upgrading cores is not an option in Alletra MP B10000 mid-range systems.

Key Concept: Understanding performance sizing based on controller and architecture limits, not just capacity or NICs.