HPE2-K45 Exam Dumps : Using HPE SimpliVity

• HPE SimpliVity 380 Gen10 LFF H and HPE SimpliVity 380 Gen10 SFF H nodes are two types of HPE SimpliVity nodes that differ in their form factor, storage capacity, and performance. LFF stands for large form factor, which means that the node has 3.5-inch hard disk drives (HDDs) and can support up to 40 TB of raw storage capacity. SFF stands for small form factor, which means that the node has 2.5-inch solid state drives (SSDs) and can support up to 23.4 TB of raw storage capacity12.
• HPE SimpliVity nodes can be grouped into clusters, which are logical units of compute and storage resources that share the same configuration and policies. HPE SimpliVity clusters can be further grouped into federations, which are collections of clusters that span across different physical locations and provide unified management and data protection34.
• For this setup, the recommended design is to put SFF and LFF nodes in separate clusters, but within the same federation. According to the HPE SimpliVity Federation Design and Scaling Guide document, the following reasons support this recommendation:

References:

1: HPE SimpliVity 380 Gen10 LFF H Node Data sheet 2: HPE SimpliVity 380 Gen10 SFF H Node Data sheet 3: HPE SimpliVity Data Virtualization Platform 4: HPE SimpliVity Federation Design and Scaling Guide : [HPE SimpliVity 380 Gen10 Node Data sheet - PSNow] : [HPE SimpliVity 380 Gen10 Node | HPE Store US] : [HPE SimpliVity Intelligent Workload Optimizer] : [HPE SimpliVity with HPE StoreOnce Reference Architecture] : [HPE SimpliVity Stretched Cluster Guide] : [HPE SimpliVity Remote RapidDR Software Installation and Startup Service]

 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 and database, while the crash consistent method does not guarantee that1. The application consistent method uses the VMware snapshot or the Microsoft Volume Shadow Copy Service (VSS) to quiesce the application and flush the pending I/O operations to the disk before creating the clone, which prevents data corruption or loss2. The crash consistent method does not quiesce the application or flush the pending I/O operations, and creates the clone as if the virtual machine had crashed, which may result in data inconsistency or recovery issues3. The application consistent method is recommended for virtual machines that run database applications, such as SQL Server or Oracle, while the crash consistent method is suitable for virtual machines that run non-database applications, such as web servers or file servers4. The application consistent method is not available only for Linux operating systems (option D), as it also supports Windows Server operating systems that have VMware Tools or VSS installed5. The crash consistent method should not be used only for the virtual machines with Fault Tolerance enabled (option C), as it can be used for any virtual machine that does not require application consistency. Both methods are not the same,and the speed of cloning is not the only difference (option B), as they have different implications for the data integrity and availability of the cloned virtual machine. References:

• 1: Using HPE SimpliVity Official Certification Study Guide (HPE2-K45), HPE Press, 2019, p. 28.
• 2: Clone a virtual machine - techhub.hpe.com, HPE, 2021, 3.
• 3: HPE SimpliVity OmniStack Interoperability Guide 4.2.0, HPE, 2021, p. 8.
• 4: Using HPE SimpliVity Official Certification Study Guide (HPE2-K45), HPE Press, 2019, p. 29.
• 5: HPE SimpliVity OmniStack Interoperability Guide 4.2.0, HPE, 2021, p. 9.
• [6]: Using HPE SimpliVity Official Certification Study Guide (HPE2-K45), HPE Press, 2019, p. 28.
• [7]: Clone a virtual machine - techhub.hpe.com, HPE, 2021, 3.

You can apply a backup policy at the datastore level, as this is the level at which HPE SimpliVity manages the virtual machines and their backups1. A backup policy consists of one or more rules that specify the destination, frequency, and retention of the backups. You can assign a backup policy to a datastore, and all the virtual machines in that datastore will inherit the backup policy. You can also override the backup policy for individual virtual machines, if needed2. Applying a backup policy at the cluster level (option A), the datacenter level (option B), or the vCenter Server level (option C) is not possible, as these are not the levels at which HPE SimpliVity manages the virtual machines and their backups. These levels are used for organizing and managing the ESXi hosts and the HPE SimpliVity nodes, but not for applying backup policies. References:

• 1: Using HPE SimpliVity Official Certification Study Guide (HPE2-K45), HPE Press, 2019, p. 28.
• 2: HPE SimpliVity OmniStack Interoperability Guide 4.2.0, HPE, 2021, p. 8.