HPE2-K45 Exam Dumps - HPE Technical Certification Questions and Answers

• HPE SimpliVity is a hyperconverged infrastructure solution that combines compute, storage, networking, and data services in a single platform. HPE SimpliVity integrates with HPE StoreOnce, a disk-based backup appliance, to provide efficient and reliable data protection and disaster recovery for distributed edge sites12.
• HPE SimpliVity uses HPE StoreOnce Catalyst, a deduplication protocol, to replicate data from HPE SimpliVity clusters to HPE StoreOnce appliances. HPE SimpliVity leverages its global deduplication and compression capabilities to send only the unique data blocks to HPE StoreOnce, reducing the bandwidth and storage requirements34.
• To optimize the replication performance, the design aspects that need to be evaluated are the number of the HPE SimpliVity clusters and Catalyst stores used. According to the HPE SimpliVity with HPE StoreOnce Reference Architecture document, the following best practices are recommended:
• The other options are not relevant for optimizing the replication performance. The performance optimization features provided by VMFS datastores compared to NFS datastores are not applicable for HPE SimpliVity, as it uses its own file system and data virtualization platform. The intelligent workload optimizer settings are not related to the replication performance, but to the VM placement and load balancing within the HPE SimpliVity cluster. The HPE SimpliVity model used does not affect the replication performance, as long as it meets the minimum requirements for the HPE StoreOnce integration.

References:

1: SimpliVity Hyperconverged | HPE 2: Expand backups to secondary storage with HPE SimpliVity hyperconverged infrastructure and HPE StoreOnce 3: HPE SimpliVity with HPE StoreOnce 4: HPE SimpliVity with HPE StoreOnce: A better together story : [HPE SimpliVitywith HPE StoreOnce Reference Architecture] : [HPE SimpliVity Data Virtualization Platform] : [HPE SimpliVity Intelligent Workload Optimizer]

 According to the HPE SimpliVity documents and learning resources, the HPE SimpliVity 380 Gen10 is the only model that can be equipped with the HPE mniStack Accelerator card. The HPE mniStack Accelerator card is a PCIe-based card that provides hardware acceleration for data compression and deduplication. It also enables the HPE SimpliVity RapidDR feature, which automates and simplifies disaster recovery operations. The other models, such as the HPE SimpliVity 2600, the HPE SimpliVity 380 Gen10 H, and the HPE SimpliVity 325 Gen10, do not support the HPE mniStack Accelerator card. They rely on software-based data efficiency and backup features. References: Using HPE SimpliVity Official Certification Study Guide, page 29; HPE SimpliVity networking explained; HPE SimpliVity Releases

According to the HPE SimpliVity documents and learning resources, mixing nodes with different drive configurations within a cluster is not recommended, as it can result in unbalanced 10 performance and capacity utilization. This is because the HPE SimpliVity nodes use a distributed file system that replicates data across all nodes in the cluster, and the data efficiency and backup features depend on the consistent performance of the underlying storage devices. Therefore, it is best to use nodes with the same drive configuration and capacity within a cluster, and avoid mixing All-flash and hybrid nodes, or nodes with different drive types, sizes, or speeds. The other options are incorrect because they are either false or irrelevant. Mixing nodes with different drive configuration does not require an additional license, nor is it available only for AMD-based nodes. Mixing All-flash and hybrid nodes in the same cluster is not supported, as it can causeperformance and capacity issues. References: Using HPE SimpliVity Official Certification Study Guide, page 42; HPE SimpliVity networking explained; HPE SimpliVity Releases

According to the HPE SimpliVity Administration Guide1, one of the major considerations for integrating HPE Storence with HPE SimpliVity is the physical location of the HPE Storence system. The guide recommends that the HPE Storence system should be located in a third site that is independent from the two HPE SimpliVity sites, and that the network latency between the sites should be less than 10 ms. This ensures that the HPE Storence system can act as a reliable backup target for the HPE SimpliVity federation, and that the backup and restore operations can be performed efficiently and securely. The other options are not correct because:

• The number of HPE Storence/SimpliVity integration licenses is not a major consideration for this integration. The HPE SimpliVity federation does not require any additional licenses to integrate with HPE Storence1.
• The number of the stores configured with HPE SimpliVity is not a major consideration for this integration. The HPE SimpliVity federation can integrate with any number of HPE Storence stores, as long as they are configured with the HPE Storence Catalyst protocol1.
• The limited support from software-optimized HPE SimpliVity models is not a major consideration for this integration. The HPE SimpliVity federation can integrate with HPE Storence regardless of the hardware model of the HPE SimpliVity nodes, as long as they are running the same software version1. References: 1: HPE SimpliVity Administration Guide (A00019350ENW), pages 105-107.

The HPE SimpliVity OmniStack Interoperability Guide is a document that provides the information about the supported hardware and software components for the HPE SimpliVity solution, such as the HPE SimpliVity nodes, the VMware ESXi hosts, the VMware vCenter Server, the HPE OmniStack software, the HPE SimpliVity Arbiter, and the guestoperating systems1. The guide also provides the compatibility matrix and the configuration guidelines for the HPE SimpliVity solution. The ESXi version (option B) and the guest OS version (option C) are two items that can be found in the HPE SimpliVity OmniStack Interoperability Guide, as they are essential for the proper functioning and performance of the HPE SimpliVity solution. The guide lists the supported ESXi versions for each HPE SimpliVity node model and HPE OmniStack software version, as well as the supported guest OS versions for each HPE SimpliVity node model1. The GPU accelerators (option A), the vSphere license (option D), and the processor model (option E) are not items that can be found in the HPE SimpliVity OmniStack Interoperability Guide, as they are not relevant or required for the HPE SimpliVity solution. The GPU accelerators are not supported by the HPE SimpliVity solution, as they are not compatible with the HPE SimpliVity nodes2. The vSphere license is not specified by the HPE SimpliVity solution, as it depends on the customer’s choice and needs3. The processor model is not listed by the HPE SimpliVity solution, as it is already determined by the HPE SimpliVity node model4. References:

• 1: HPE SimpliVity OmniStack Interoperability Guide 4.2.0, HPE, 2021, pp. 1-25.
• 2: HPE SimpliVity 380 Gen10 Node Data sheet, HPE, 2019, p. 5.
• 3: Using HPE SimpliVity Official Certification Study Guide (HPE2-K45), HPE Press, 2019, p. 27.
• 4: Using HPE SimpliVity Official Certification Study Guide (HPE2-K45), HPE Press, 2019, p. 17.

According to the HPE SimpliVity Administration Guide1, the file level restore option allows you to recover individual files or folders from a backup of a virtual machine. Thisoption is useful when you need to restore a specific file that was accidentally deleted or corrupted, without affecting the rest of the virtual machine. The file level restore option supports both Windows and Linux based virtual machines, and can be performed using the HPE SimpliVity plugin in the vSphere Web Client. The file level restore option creates a temporary virtual machine from the backup, mounts the virtual disks, and copies the selected files or folders to a destination of your choice. The temporary virtual machine is then deleted automatically.

The other options are not suitable for recovering a single file from a Linux based virtual machine. Restoring a virtual machine from the backup would overwrite the entire virtual machine with the backup data, which may not be desirable or necessary. Moving a virtual machine from DR site to the primary site would not help if the file was deleted from both sites. Reverting to the SimpliVity snapshot would also overwrite the entire virtual machine with the snapshot data, which may not be the latest or the most relevant version. References:

• 1: HPE SimpliVity Administration Guide, https://support.hpe.com/hpesc/public/docDisplay?docId=sf000062138en_us&docLocale=en_US, page 76-78

HPE SimpliVity 380 Ge10G is a hyperconverged solution that combines compute, storage, and networking in a 2U form factor. It supports up to two NVIDIA GPU accelerators per node, which can enhance the performance and user experience of VDI applications. It also offers high availability, data efficiency, and built-in data protection and disaster recovery. It supports VMware vSphere and Microsoft Hyper-V hypervisors, and integrates with HPE InfoSight for AI-driven operations and insights. References: HPE SimpliVity 380 Gen10; Technical Positioning of HPE SimpliVity for VDI solutions

According to the HPE SimpliVity documents and learning resources, the best practice for designing an HPE SimpliVity solution is to use nodes with the same drive configuration and capacity within a cluster, and avoid mixing All-flash and hybrid nodes, or nodes with different drive types, sizes, or speeds. This is because mixing nodes with different drive configurations can result in unbalanced 10 performance and capacity utilization, as well as compatibility issues.Therefore, the recommended option for this design is to create a new cluster with HPE SimpliVity 380 Gen10 H SFF nodes at the remote site, and keep the existing cluster with HPE SimpliVity 380 Gen10 hardware accelerated nodes at the primary site. The other options are incorrect because they do not follow the best practice and can cause performance and capacity problems. References: Using HPE SimpliVity Official Certification Study Guide, page 42; HPE SimpliVity networking explained; HPE SimpliVity Releases

 According to the HPE SimpliVity documents and learning resources, the difference between crash consistent and application consistent cloning methods is that the application consistent method ensures that the cloned virtual machine is in a consistent state with respect to the application data and transactions. This means that the application consistent method allows the pending 10 operations to finish before committing them to the database, and flushes the memory buffers and caches to the disk. This ensures that the cloned virtual machine can resume the application without any data loss or corruption. The crash consistent method, on the other hand, does not guarantee that the cloned virtual machine is in a consistent state with respect tothe application data and transactions. This means that the crash consistent method does not wait for the pending 10 operations to finish or flush the memory buffers and caches to the disk. This may result in some data loss or corruption if the cloned virtual machine resumes the application. The crash consistent method is faster than the application consistent method, but less reliable. The other options are incorrect because they are either false or irrelevant. Both methods are not the same, and the difference is not only speed of cloning. The crash consistent method can be used for any virtual machine, not only for those with Fault Tolerance enabled. The application consistent method is available for both Windows and Linux operating systems, not only for Linux. References: Clone a virtual machine; HPE SimpliVity frequently asked questions, page 17; Using HPE SimpliVity Official Certification Study Guide, page 65

 According to the HPE SimpliVity REST API Reference Guide1, the svtcli account is a local emergency account that can be used to access HPE SimpliVity data using REST API whenthe hypervisor-based user is unavailable. This account can only perform a limited set of operations, such as getting information about hosts, clusters, backups, datastores, and virtual machines, and restoring backups of virtual machines. The svtcli account can request an authentication token using the emergency grant type, which is valid for 10 minutes of inactivity or 24 hours of continuous activity. The other options are not correct because:

• The svtcli account is not used when two or more VCs are not available. In that case, the federation management is transferred to the remaining VCs2.
• The svtcli account is not used when the hypervisor-based user is unavailable. In that case, the emergency grant type is used to access the REST API using the svtcli account1.
• The svtcli account is not used for daily management tasks performed using CLI. For that purpose, the hypervisor-based user is used, which has full access to the CLI commands3. References: 1: HPE SimpliVity REST API Reference Guide (A00019351ENW), pages 9-10, 14-152: HPE SimpliVity Administration Guide (A00019350ENW), page 303: HPE SimpliVity CLI Reference Guide (A00019352ENW), page 9.