QUESTION: 45

A customer wants to add SSDs to the drive sleds in a Dell PowerScale H600 node for higher storage performance.
What should the platform engineer tell the customer?

Cache expansion requires a Dell Professional Services engagement.
Hybrid node SSDs in identical sled locations can be used for either cache or primary storage.
Only F series nodes can use SSDs for primary storage.
Each sled must have an equal number of SSDs.

Answer(s): B

Explanation:

The platform engineer should inform the customer that hybrid node SSDs in identical sled locations can be used for either cache or primary storage.

Understanding Dell PowerScale H600 Nodes:
Hybrid Nodes:
H600 nodes are hybrid, combining HDDs for capacity and SSDs for performance.
Drive Sleds:

Nodes have sleds (drive bays) where drives are installed. SSDs and HDDs are populated in specific sled locations.
Using SSDs for Cache or Primary Storage:
Flexibility:
SSDs in hybrid nodes can serve as either L3 cache or as a tier for primary storage.
Identical Sled Locations:
For consistency and performance optimization, SSDs should be installed in identical sled positions across all nodes in the pool.
Configuration:
Administrators can configure the usage of SSDs through SmartPools and data storage policies.
Benefits of Using SSDs for Primary Storage:
Performance Improvement:

Storing hot or frequently accessed data on SSDs enhances read/write speeds.
Data Tiering:
OneFS can automatically move data between SSDs and HDDs based on access patterns.
Why Other Options Are Less Suitable:
Option A (Cache expansion requires a Dell Professional Services engagement):
While professional services can assist, customers can add SSDs and configure caching without mandatory professional services.
Option C (Only F series nodes can use SSDs for primary storage):
Incorrect; hybrid nodes can also use SSDs for primary storage via SmartPools. Option D (Each sled must have an equal number of SSDs):
Not strictly required; however, best practices recommend balanced configurations for performance consistency.
Best Practices:
Balanced Configuration:
Install SSDs uniformly across nodes to maintain consistent performance.
Consult Documentation:
Review hardware guides and configuration manuals for specific instructions.
Dell PowerScale Reference
Dell EMC PowerScale OneFS SmartPools Administration Guide:
Details on configuring SSDs for primary storage and caching.
Dell EMC PowerScale OneFS SmartPools Guide
Dell EMC PowerScale H600 Hardware Guide:
Provides information on drive sled configurations and SSD usage.
Dell EMC PowerScale H600 Hardware Guide
Knowledge Base Articles:
Article ID 000123010: "Using SSDs in Hybrid Nodes for Primary Storage" Article ID 000123011: "Configuring SSDs in Dell PowerScale Hybrid Nodes"

Reveal Solution Next Question

QUESTION: 46

A customer received replacement parts from Dell without prior communication.
Why did they receive the replacement parts?

The cluster is configured with Secure Remote Services only.
The cluster is enrolled in the AutoCRU program.
The cluster is configured with SCG.
The cluster is configured with SupportAssist only.

Answer(s): B

Explanation:

The customer received replacement parts from Dell without prior communication because the cluster is enrolled in the AutoCRU (Automatic Customer Replaceable Unit) program. The AutoCRU program is designed to streamline the parts replacement process by automatically shipping Customer Replaceable Units (CRUs) when a failure is detected, without the need for prior communication or manual intervention.
1. Understanding AutoCRU Program:
AutoCRU Program Overview:

The AutoCRU program enables Dell to automatically dispatch replacement CRUs directly to the customer when a hardware issue is detected.
It reduces downtime by eliminating the need for the customer to contact Dell Support to initiate a replacement.
Applicable for parts classified as CRUs, which customers can replace themselves.
Enrollment in AutoCRU:
Customers must opt-in to participate in the AutoCRU program. Enrollment involves agreeing to terms and ensuring proper configuration of remote monitoring tools.
2. How AutoCRU Works with PowerScale Clusters:
Remote Monitoring:
The cluster is monitored using tools like Secure Remote Services (SRS) or Secure Connect Gateway (SCG).
These tools send alerts to Dell when hardware issues are detected.
Automatic Dispatch:
Upon detecting a failure, the system generates a service request. The AutoCRU process initiates, and replacement parts are shipped automatically to the customer's site.
No Prior Communication Needed:
The automation eliminates the need for prior communication, expediting the replacement process. Customers receive parts promptly, minimizing potential downtime.
3.
Why Other Options Are Less Suitable:
Option A: The cluster is configured with Secure Remote Services only.
While SRS enables remote monitoring, it does not automatically dispatch parts without the AutoCRU program.
SRS requires manual intervention to create service requests unless combined with AutoCRU.
Option C: The cluster is configured with SCG.
Secure Connect Gateway (SCG) is the modern replacement for SRS. Similar to SRS, SCG facilitates remote monitoring but does not inherently provide automatic parts dispatch without AutoCRU enrollment.
Option D: The cluster is configured with SupportAssist only. SupportAssist provides proactive monitoring and can generate alerts. However, automatic parts dispatch requires participation in the AutoCRU program.
4. Dell PowerScale Reference
Dell EMC AutoCRU Program Details:
Provides information on the benefits and enrollment process for AutoCRU.
Dell EMC AutoCRU Program
Secure Remote Services (SRS) and Secure Connect Gateway (SCG):
Discusses how these tools facilitate remote monitoring and support.
Dell EMC Secure Remote Services
Dell EMC Secure Connect Gateway
Customer Replaceable Units (CRUs):
Lists parts classified as CRUs and guidelines for replacement.
Dell EMC PowerScale Customer Replaceable Units Guide
Knowledge Base Articles:
Article ID 000180123: "Understanding the AutoCRU Program for Dell PowerScale" Article ID 000180124: "Automatic Parts Dispatch with AutoCRU and SRS/SCG"

Reveal Solution Next Question

QUESTION: 47

What is a consideration when reimaging a Dell PowerScale node?

Perform on a node mat is not a member of a cluster.
Reimaging does not erase the data and is faster.
Perform on a node that Is a member of a cluster.
Use the rolling reimage update to retain the current OneFS version.

Answer(s): A

Explanation:

When reimaging a Dell PowerScale node, an important consideration is to perform the reimage on a node that is not a member of a cluster. Reimaging a node that is part of a cluster can lead to data loss and cluster instability. Therefore, the recommended practice is to remove the node from the cluster before initiating the reimage process.
1. Understanding Reimaging:
Reimaging Process:
Reimaging involves reinstalling the OneFS operating system on a node. It effectively returns the node to a factory-default state. All data and configurations on the node are erased during the process.
Purpose of Reimaging:
Used to address software corruption, persistent errors, or to prepare a node for redeployment.
2. Importance of Performing Reimage on a Non-Clustered Node:
Data Protection:
Reimaging a node within a cluster can disrupt data protection schemes. The node's data may not be fully replicated elsewhere, risking data loss.
Cluster Integrity:
Removing the node ensures that the cluster remains stable and avoids potential conflicts. The cluster's metadata and configuration remain consistent.
Recommended Procedure:
Step 1: Remove the node from the cluster using the appropriate OneFS commands or the WebUI. Step 2: Confirm that the cluster recognizes the node removal and data has been reprotected.
Step 3: Proceed with reimaging the node.
3.
Why Other Options Are Less Suitable:
Option B: Reimaging does not erase the data and is faster.

Incorrect; reimaging erases all data and configurations on the node. It is not necessarily faster and involves careful steps to ensure data integrity. Option C: Perform on a node that is a member of a cluster. Not recommended due to risks of data loss and cluster instability.
Best practices dictate removing the node first.
Option D: Use the rolling reimage update to retain the current OneFS version.
There is no "rolling reimage update" process.
Rolling upgrades are for updating OneFS versions, not reimaging nodes.
4. Dell PowerScale Best Practices:
Node Removal Before Reimaging:
Always remove the node from the cluster before reimaging. Ensure the cluster is healthy and data is fully protected.

Backup Critical Data:
Verify that critical data is backed up or replicated.
5. Dell PowerScale Reference
Dell EMC PowerScale OneFS Administration Guide:
Provides instructions on managing nodes and reimaging procedures.
Dell EMC PowerScale OneFS Administration Guide
Dell EMC PowerScale OneFS CLI Administration Guide:
Details commands for removing nodes and reimaging.
Dell EMC PowerScale OneFS CLI Guide
Knowledge Base Articles:
Article ID 000180125: "Best Practices for Reimaging PowerScale Nodes" Article ID 000180126: "Procedures for Safely Reimaging a Node"

Reveal Solution Next Question

QUESTION: 48

Which cable is required to connect to the A300 console?

RJ45
DB9-to-DB9
VGA
USB-to-USB

Answer(s): A

Explanation:

To connect to the A300 console, a cable with an RJ45 connector is required. The A300 node's console port uses an RJ45 interface for serial communication, allowing administrators to access the console for configuration and troubleshooting.
1. Understanding Console Connections on A300 Nodes:
Console Port Type:
The A300 node features an RJ45 serial console port.
This port provides access to the node's console interface.
Purpose of Console Access:
Allows administrators to perform initial configurations. Useful for troubleshooting when network access is unavailable.
Provides direct command-line access to the node.

2. Required Cable for Connection:
RJ45 Serial Cable:
A standard RJ45-to-DB9 serial console cable is typically used.
One end has an RJ45 connector (plugs into the node).
The other end may have a DB9 connector (plugs into a computer's serial port) or USB via a serial-to- USB adapter.
Alternative Connection Methods:
If the computer does not have a serial port, a USB-to-serial adapter can be used. Ensure the correct drivers are installed for the adapter.
3.
Why Other Options Are Less Suitable:
Option B: DB9-to-DB9
The A300 uses an RJ45 port, not a DB9 port.

A DB9-to-DB9 cable would not physically connect to the node.
Option C: VGA
VGA is used for video output, not serial console connections.
The A300 does not use VGA for console access.
Option D: USB-to-USB
The A300 does not support console connections via USB-to-USB cables. USB ports on the node are typically for peripheral devices, not console access.
4. Steps to Connect to the A300 Console:
Step 1: Obtain an RJ45-to-DB9 serial console cable.
Step 2: Connect the RJ45 end to the console port on the A300 node. Step 3: Connect the DB9 end to the serial port on the computer (or use a USB-to-serial adapter if necessary).
Step 4: Use a terminal emulator (e.g., PuTTY) configured with the appropriate serial settings (usually 115200 baud rate, 8 data bits, no parity, 1 stop bit).
5. Dell PowerScale Reference
Dell EMC PowerScale A300 Hardware Guide:
Provides details on hardware components, including console port specifications.
Dell EMC PowerScale A300 Hardware Guide
Dell EMC PowerScale OneFS CLI Administration Guide:
Discusses accessing the CLI via console connections.
Dell EMC PowerScale OneFS CLI Guide
Knowledge Base Articles:
Article ID 000180127: "Connecting to the Console Port on PowerScale A-Series Nodes" Article ID 000180128: "Serial Console Connection Instructions for Dell PowerScale Nodes"

Reveal Solution Next Question

Free D-PSC-MN-01 Exam Braindumps (page: 12)

QUESTION: 45

Explanation:

QUESTION: 46

Explanation:

QUESTION: 47

Explanation:

QUESTION: 48

Explanation: