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A customer application generates 2 GB/s writes The outage is under two hours. What capacity must be allowed for the journal?
To calculate the required journal capacity, we need to consider the maximum cumulative writes that might occur during an outage. The calculation is based on the application's write bandwidth and the duration of the supported outage. For an application generating 2 GB/s of writes, using a 2-hour outage (which is 7200 seconds), the journal capacity reservation needed is:
JournalCapacity=WriteBandwidthOutageDuration
JournalCapacity=2GB/s7200s=14400GB
However, since the question specifies that the outage is under two hours, we use the minimum outage allowance of 1 hour for the calculation, which is 3600 seconds. Therefore, the correct calculation is:
JournalCapacity=2GB/s3600s=7200GB
But considering the recommendation to use three hours in the calculations for safety, the needed capacity would be approximately 10.547 TB, which is roughly 10.800 GB12. Hence, the verified answer is 10.800 GB.
Which PowerFlex software allows the cluster to make data available over NAS"
FSN, or File Storage Network, is the component within the PowerFlex software suite that enables data availability over NAS (Network Attached Storage).It is designed to integrate file services into the PowerFlex system, allowing for the management of file shares alongside block storage within the same infrastructure1.
The FSN component provides the necessary functionality to create, manage, and serve file systems over the network, making it possible for clients to access shared files and directories as if they were local.This integration simplifies the storage architecture and provides a unified storage solution for both block and file data requirements1.
The other options listed, such as SDR (Storage Data Replicator), LIA (Log Integration Adapter), and SDT (Software-Defined Technology), do not specifically relate to the provision of NAS services within the PowerFlex environment. Therefore, the correct answer is A. FSN, as it is the PowerFlex software component responsible for enabling NAS capabilities within the cluster.
A customer has ordered five servers with NVDlMMs Each server has 5 x 3 84 TB SAS and 5 x 3 84 T8 NVMe disks They want to ensure that the highest capacity ot storage is available to the system Which design provides the required storage pool structure''
To maximize the storage capacity available to the system while utilizing NVDIMMs, SAS, and NVMe disks, the design should include both a Storage Pool and an Acceleration Pool. The Storage Pool will be used for the bulk storage provided by the SAS disks, while the Acceleration Pool, leveraging the high-speed NVMe disks, will be used to accelerate the performance of the storage system.
The use of NVDIMMs in PowerFlex is associated with enabling fine-granularity storage pools that provide compression, which is beneficial for space efficiency, especially with heavy snapshot use1. This configuration allows for the creation of a storage pool that can take advantage of the NVDIMMs' capabilities for compression and the high capacity of the SAS disks, while the NVMe disks in the Acceleration Pool provide high-performance storage for more demanding workloads.
Therefore, the correct answer is A. One Storage Pool and one Acceleration Pool, as this design will provide the highest capacity of storage available to the system while also ensuring optimal performance through the use of NVMe disks in the Acceleration Pool.
Which component of the PowerFlex cluster provides server metrics such as telemetry thermal data and sets the server configuration profile?
The Integrated Dell Remote Access Controller (iDRAC) is the component within a PowerFlex cluster that provides server metrics, including telemetry and thermal data, and allows for setting the server configuration profile. iDRAC is an embedded system management hardware and software solution that provides remote management capabilities, system health monitoring, and recovery capabilities. It is a key component for server lifecycle management within the PowerFlex infrastructure1.
iDRAC operates independently from the server's CPU and operating system, enabling administrators to monitor server health and manage systems even when the server is turned off or unresponsive. It provides a comprehensive set of server management features, including:
Monitoring server health and managing power usage.
Accessing logs for troubleshooting and recovery.
Updating firmware and drivers.
Configuring hardware settings and server profiles.
These capabilities are essential for maintaining the reliability and performance of PowerFlex clusters, making iDRAC a critical component for server metrics and configuration management.
A customer must restore PowerFlex Manager from a previous backup How can they accomplish this task*?
To restore PowerFlex Manager from a previous backup, the customer should select the Restore option from the Serviceability page in PowerFlex Manager. This process is outlined in the Dell PowerFlex Manager documentation and involves the following steps:
Login to PowerFlex Manager GUI: Access the PowerFlex Manager user interface through a web browser.
Navigate to Serviceability: From the dashboard, navigate to the Serviceability page.
Select Restore: On the Serviceability page, locate and select the Restore option.
Provide Backup Details: Enter the necessary details of the backup file that you wish to restore from, such as the filename and location.
Test Connection: Before proceeding with the restore, perform a test connection to ensure that the backup file is accessible.
Initiate Restore: Once the test connection is successful, initiate the restore process.
The restore operation will then proceed, and upon completion, PowerFlex Manager will be restored to the state captured in the backup file. It is important to follow the instructions carefully and ensure that the backup file is correct and not corrupted to avoid any issues during the restoration process1.
This answer is verified as per the Dell PowerFlex Design documents, ensuring that the information provided is accurate and aligns with the official guidelines for restoring PowerFlex Manager from a backup1.
