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| Section | Weight | Objectives |
|---|---|---|
| Emerging Technologies and Solutions | 10% | - Hybrid cloud and multi-cloud storage
|
| Management and Optimization | 15% | - Monitoring and administration
|
| Deployment and Integration | 20% | - Networking and connectivity
|
| Data Protection and Availability | 25% | - Backup and recovery strategies
|
| Storage Architecture and Design | 30% | - Design principles for enterprise storage
|
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18. Frage
A storage administrator is creating a disaster recovery solution for HPE Alletra 9000 storage arrays.
Currently, the company has three storage arrays at three different primary sites. When implementing the N-to-
1 Remote Copy (RC) feature, what is the minimum number of storage arrays the storage administrator needs to plan for at the disaster recovery site?
Antwort: C
Begründung:
The HPE Alletra 9000 (and its predecessor, HPE Primera) supports various Remote Copy (RC) topologies to meet different disaster recovery and data distribution requirements. These include 1-to-1, 1-to-N (fan-out), and N-to-1 (fan-in) configurations.
In an N-to-1 Remote Copy configuration, multiple source storage systems (represented by 'N') replicate their data to a single, centralized target system at a disaster recovery (DR) or secondary site. This architecture is particularly efficient for organizations with multiple regional or branch offices that wish to centralize their backup and DR operations into a single data center to reduce hardware costs and simplify management. In the scenario described, the company has three primary sites ($N = 3$), each with its own storage array. To implement an N-to-1 strategy, the administrator only needs to provide one storage array at the DR site. This single target array must be sized appropriately to handle the combined capacity and performance requirements (IOPS and throughput) of the incoming replication streams from all three source systems.
Architecturally, the Alletra 9000 uses Remote Copy Groups to manage these relationships. Each group on the source systems is mapped to a corresponding group on the single target system. It is important to note that while the hardware requirement is a single array, the administrator must ensure the target array has sufficient Remote Copy ports (RCIP or RCFC) and licensed capacity to accommodate the fan-in ratio. The Alletra
9000 management interface and HPE GreenLake Data Services Cloud Console (DSCC) provide the orchestration necessary to monitor these multiple inbound streams and ensure that the Recovery Point Objectives (RPOs) are met across all sites simultaneously.
19. Frage
An administrator manages a group of HPE Alletra MP B10000 arrays through the DSCC console. They want to improve the available space for the storage arrays. What should the administrator change to increase the achievable space efficiency?
Antwort: D
Begründung:
The HPE Alletra MP B10000 (Block) utilizes a disaggregated shared-everything architecture where capacity is distributed across multiple NVMe drives and enclosures. To ensure 100% data availability, the system allows administrators to define the level of resilience required via the High Availability (HA) settings.
Architecturally, there is a direct trade-off between the level of hardware resilience and the achievable space efficiency (usable capacity).
* Enclosure Level HA (Option D): This is the most resilient setting. It ensures the system can survive the total failure of an entire drive enclosure (JBOF) without losing data. To achieve this, the system must distribute parity and data stripes across different enclosures. This "vertical" redundancy requires a larger percentage of raw capacity to be reserved for parity, thereby reducing the net space efficiency.
* Drive Level HA (Option A): This setting protects against individual drive failures (similar to traditional RAID 6 or RAID-TP) but assumes the enclosure itself remains operational. Because the stripes can be optimized more densely within fewer hardware boundaries, the system requires less
"overhead" capacity to maintain the protection state.
By changing the High Availability option to Drive Level, the administrator instructs the Alletra MP software to prioritize usable capacity over enclosure-level fault tolerance. This is a common optimization for customers who have multi-enclosure systems but prefer to maximize their ROI on raw NVMe flash. It is important to note that changing this setting may require a re-striping of existing data and should be done in accordance with the customer's risk profile and SLA requirements. The sparing algorithms (Options B and C) manage how much space is set aside for automatic rebuilds, but the primary driver of bulk space efficiency in a multi- enclosure MP cluster is the HA policy selection.
20. Frage
An HPE customer purchased an HPE B-Series SN7000B SAN fabric switch. QoS is currently not enabled. Which two statements are correct regarding buffer-to-buffer (BB) credits and the operation of the switch? (Choose two.)
Antwort: A,D
Begründung:
The HPE B-Series SN7000B is a high-performance Director based on Brocade Gen 7 (G7) technology. Buffer-to-Buffer (BB) credits are the fundamental flow-control mechanism used in Fibre Channel to prevent frame loss and manage congestion.
Statement D is a foundational principle of SAN architecture: BB credits are based on link speed and frame size. In an FC fabric, the number of credits required to "fill the pipe" (keep data moving without waiting for acknowledgments) is a direct function of the Round Trip Time (RTT), which is determined by the physical distance, the speed of the link (e.g., 64Gb/s vs 32Gb/s), and the size of the frames being sent (typically 2KB). As link speeds increase, more buffer credits are required to maintain full throughput over the same distance.
Statement C reflects a specific technical default in the Brocade Fabric OS (FOS) for Gen 7 hardware. To ensure that ports can initialize and handle basic traffic immediately upon being enabled, the switch reserves a default number of credits from the ASIC's global buffer pool. For user ports on these high- density blades, the system reserves eight buffer credits per port, regardless of whether the port is currently online or offline. This reservation ensures that the port has the minimum resources necessary to complete a fabric login (FLOGI) or negotiate a link without competing for pool resources.
21. Frage
A company has a pair of Alletra 9000s, managed via the HPE GreenLake Data Services Cloud Console (DSCC). An administrator installed Kubernetes locally but requires persistent storage using the Alletra 9000s.
After installing the helm repo for the HPE CSI Driver for Kubernetes, what is the next step the administrator should perform to use the Alletra 9000s for persistent storage?
Antwort: D
Begründung:
The deployment of the HPE CSI (Container Storage Interface) Driver involves several sequential steps to enable dynamic provisioning of storage on HPE Alletra 9000 arrays. Once the Helm repository has been added, the administrator must provide the driver with the necessary authentication and connectivity details for the storage backend.
According to the HPE Storage Container Orchestration Documentation (SCOD), the definitive next step to enable communication between the Kubernetes cluster and the Alletra 9000 is to create a Kubernetes Secret. This Secret contains critical parameters such as the storage array's IP address or FQDN, and the management credentials (username and password). Without this Secret, the CSI driver cannot authenticate against the Alletra 9000 REST API to perform volume creation, mounting, or snapshot operations.
While creating a StorageClass (Option C) is a required step, it follows the creation of the Secret. The StorageClass definition must specifically reference the name of the Secret to identify which storage backend should be used for a particular tier of service. Option A (creating a namespace) is often done as part of the helm install command itself (using the --create-namespace flag) and is a general administrative task rather than a storage-specific configuration step. Option D is incorrect as the Alletra 9000 does not pull credentials from the Kubernetes conductor; rather, the Kubernetes driver pushes requests to the array using the credentials stored in the Kubernetes Secret. Establishing this secure handshake via the Secret is the foundational step for all subsequent persistent volume (PV) and persistent volume claim (PVC) activities.
22. Frage
A customer is considering purchasing an HPE StoreOnce solution to meet their VMware VM data protection needs. Which two Veeam features, paired with HPE StoreOnce, will validate the restoration of backups and allow the customer to easily create labs for validation testing from backups? (Choose two.)
Antwort: A,B
Begründung:
The integration of Veeam Backup & Replication with HPE StoreOnce via the StoreOnce Catalyst protocol offers specialized features that transform static backup data into active assets for testing and verification. To address the specific requirements of validating restores and creating testing environments, Veeam utilizes the SureBackup and DataLabs features.
Veeam SureBackup is the primary feature used to validate the recoverability of backups. It automates the process of testing a backup by booting the VM directly from the StoreOnce repository in an isolated environment (Virtual Lab). It performs heartbeats, network tests, and application-specific tests (such as checking if a SQL database responds) to ensure the data is not just present, but functional. Because HPE StoreOnce Gen4+ systems feature flash-accelerated metadata and improved random read performance, they are "Veeam Ready" to support the I/O requirements of starting VMs for these verification tasks.
Veeam DataLabs (formerly known as Virtual Lab or On-Demand Sandbox) is the broader orchestration framework that allows customers to leverage their backup data for "Labs." By creating a DataLab, an administrator can spin up an isolated copy of the production environment from the StoreOnce backups. This is used for "validation testing," such as testing security patches, verifying application upgrades, or performing
"DevOps" tasks without impacting the production systems. Option C (Immutability) and Option E (Virtual Lock) are critical for ransomware protection but do not directly facilitate the "lab creation" or "validation testing" workflows described. Option A is a general data transfer mechanism. By selecting B and D, the storage architect ensures a solution that not only protects data but proactively proves its readiness for disaster recovery.
23. Frage
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