HPE2-K45 Exam Dumps - Using HPE SimpliVity

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 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

The Total Data Stored metric in HPE InfoSight for HPE SimpliVity represents the total amount of data that is stored on the HPE SimpliVity cluster for a given VM. This includes the VM data, which is the actual size of the VM on the datastore, as well as the local backups and remote backups, which are the copies of the VM data that are stored on the same or different clusters for data protection purposes1. The Total Data Stored metric is calculated before deduplication and compression, which are the data efficiency features of HPE SimpliVity that reduce the physical storage consumption2.

The VM Storage Usage metric in vCenter represents the amount of storage space that is allocated to a VM on a datastore. This metric does not include the backups of the VM data, as they are not visible to vCenter. The VM Storage Usage metric is also calculated after deduplication and compression, which means that it reflects the actual storage consumption of the VM data on the datastore3.

Therefore, the Total Data Stored metric is significantly higher than the VM Storage Usage metric because it includes more data elements and it does not account for the data efficiency features of HPE SimpliVity.

References: 1: HPE SimpliVity frequently asked questions 2: The technology enabling HPE SimpliVity data efficiency 3: [VMware vSphere Documentation]

• HPE SimpliVity RapidDR is a disaster recovery orchestration tool that automates and simplifies the recovery process of VMs protected by HPE SimpliVity backups. It can be used in the event of disaster to efficiently restore VMs across the primary and secondary sites, which consist of multiple HPE SimpliVity nodes12.
• HPE SimpliVity RapidDR requires VMware vCenter Server, a centralized management platform for VMware vSphere environments, to perform the recovery operations. VMware vCenter Server is licensed per instance, which means that each vCenter Server installation requires a separate license3 .
• To reduce the vCenter Server license cost, a customer can use only a single vCenter Server instance to manage the HPE SimpliVity federation, which is a group of HPE SimpliVity clusters that share the same configuration and policies. This deployment scenario is possible when the federation is managed centrally, which means that all the HPE SimpliVity nodes are registered to the same vCenter Server instance, regardless of their physical location .
• The other options are not valid for reducing the vCenter Server license cost. The number of VMs covered by a single recovery plan does not affect the vCenter Server license requirement, as long as the VMs are managed by the same vCenter Server instance. Enabling Enhanced Linked Mode for vCenter allows multiple vCenter Server instances to share information and provide a single pane of glass view, but it does not eliminate the need for separate licenses for each vCenter Server instance. Disabling Intelligent Workload Optimizer, a feature that balances the VM workload across the HPE SimpliVity cluster, has no impact on the vCenter Server license requirement.

References:

1: HPE SimpliVity RapidDR 2: HPE SimpliVity RapidDR - Starter License - 25 VMs - CDW 3: VMware vCenter Server - VMware : VMware vCenter Server Licensing, Pricing and Packaging : [HPE SimpliVity Federation Design and Scaling Guide] : [HPE SimpliVity with HPE StoreOnce Reference Architecture] : [HPE SimpliVity Data Virtualization Platform] : [HPE SimpliVity Intelligent Workload Optimizer] : [HPE SimpliVity Stretched Cluster Guide] : [HPE SimpliVity Remote RapidDR Software Installation and Startup Service]