Dell EMC D-PVM-OE-01 Exam Questions

Step by Step Comprehensive Detailed

The Port Attributes page in Unisphere for PowerMax allows storage administrators to configure various settings related to the front-end ports on the storage array. One of the functions available on this page is Select Mgt Option.

This option allows you to specify how the port is used for management purposes:

Dedicated Management Port: You can designate a port as a dedicated management port, which is used exclusively for communication with management tools like Unisphere and Solutions Enabler.

Shared Management Port: You can configure a port to be shared for both management traffic and host I/O traffic.

This flexibility allows you to optimize port usage and segregate management traffic if needed.

Why other options are incorrect:

A . Manage Protocol: Protocol settings (like FC or iSCSI) are typically configured elsewhere in Unisphere, not on the Port Attributes page.

C . Volume Set Addressing: Volume Set Addressing is a feature related to mainframe connectivity and is not directly managed through the Port Attributes page.

D . ORS Ceiling: ORS (Open Replicator Solutions) settings are managed separately and not through the Port Attributes page.

Reference and documents of Dell's public documentation for PowerMax Operate v.2:

Dell Unisphere for PowerMax 10.0.0 Online Help: The online help for Unisphere provides detailed information about the Port Attributes page and the available configuration options, including the 'Select Mgt Option' function. You can access this help within Unisphere itself or on the Dell Support website.

Dell PowerMax Family: Essentials and Best Practices Guide: This guide may offer general information about port management and configuration in PowerMax.

Step by Step Comprehensive Detailed

The PowerMax 8500 is a high-end storage array designed for enterprise environments with demanding capacity requirements. The maximum capacity per array in a PowerMax 8500 is 24 petabytes effective (PBe).

This means that after considering data reduction technologies like deduplication and compression, the array can store up to 24 petabytes of usable data.

Why other options are incorrect:

A . 8 PBe, B. 18 PBe, C. 20 PBe: These values are lower than the actual maximum capacity of the PowerMax 8500.

Reference and documents of Dell's public documentation for PowerMax Operate v.2:

Dell PowerMax 8500 Hardware Information Guide: This guide provides detailed technical specifications for the PowerMax 8500, including its maximum capacity. You can find this document on the Dell Support website by searching for 'PowerMax 8500 Hardware Information Guide.'

Dell PowerMax Family: Essentials and Best Practices Guide: This guide offers a general overview of the PowerMax family, including the 8500 model and its key features and capabilities.

Step by Step Comprehensive Detailed

A Gatekeeper in PowerMax is a small, dedicated device used for communication between the storage array and Solutions Enabler (SYMCLI), the command-line management interface. The default size of a Gatekeeper on a PowerMax array is 3 cylinders.

While the size can technically be specified in kilobytes (KB), the traditional and preferred unit for Gatekeeper size is cylinders. This is because cylinders represent a specific number of blocks on the physical disks, and using cylinders helps ensure consistent sizing across different disk types and configurations.

Why other options are incorrect:

A . 3 KB, C. 6 KB: These sizes are too small to be practical for a Gatekeeper.

Step by Step Comprehensive Detailed

Before performing an SRDF/S (synchronous) Restore operation, it is crucial to stop all host I/O activity to both the R1 (source) and R2 (target) devices. This ensures data consistency and prevents potential data loss or corruption during the restore process.

Here's why:

Data Integrity: An SRDF/S Restore operation involves copying data from the R1 device to the R2 device, overwriting any existing data on R2. If hosts are actively accessing and modifying data on either device during this process, it can lead to inconsistencies and data integrity issues.

Synchronization: SRDF/S maintains real-time synchronization between the R1 and R2 devices. 1 Performing a Restore operation while hosts are writing data can disrupt this synchronization and lead to unpredictable results.

Why other options are incorrect:

A . Continue accessing the R1 devices. Stop accessing the R2 devices: This would leave R1 vulnerable to data inconsistencies.

B . Stop accessing the R1 devices. Continue accessing the R2 devices: This would make R2 susceptible to data loss or corruption.

D . Continue accessing the R1 and R2 devices: This is the most dangerous option, as it would likely lead to data integrity issues.

Reference and documents of Dell's public documentation for PowerMax Operate v.2:

Dell Solutions Enabler 10.0.0 SRDF Family CLI User Guide: This guide provides detailed information about SRDF operations, including Restore. It emphasizes the importance of halting host I/O before performing such operations to ensure data consistency. You can find this document on the Dell Support website by searching for 'Solutions Enabler SRDF Family CLI User Guide.'

Dell PowerMax Family: Essentials and Best Practices Guide: This guide may offer general information about SRDF management and best practices, which would include recommendations for performing operations like Restore safely.

Step by Step Comprehensive Detailed

Solutions Enabler (SE) uses various daemons (background processes) to perform different functions. The storstpd daemon is specifically responsible for:

Collecting Performance Statistics: It gathers performance data from the connected storage arrays, such as I/O rates, response times, and other metrics.

Managing Performance Data: It stores and manages the collected performance statistics, making them available for monitoring and analysis through tools like Unisphere for PowerMax.

This data is crucial for understanding the performance of the storage arrays, identifying potential bottlenecks, and optimizing storage resources.

Why other options are incorrect:

B . Coordinates storage array locks and application syscalls: This is the function of the storapid daemon.

C . Starts the system watchdog timer periodically: This is not directly related to the storstpd daemon.

D . Performs remote Solutions Enabler API functions: This is typically handled by the storsrvd daemon.

Reference and documents of Dell's public documentation for PowerMax Operate v.2:

Dell Solutions Enabler 10.0.0 CLI User Guide: This guide provides information about the different daemons used by Solutions Enabler and their roles. You can find this document on the Dell Support website by searching for 'Solutions Enabler CLI User Guide.'