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EMC D-XTR-OE-A-24 Exam Syllabus Topics:

Topic	Details
Topic 1	XtremIO and X2 Installation: IT infrastructure specialists and data center technicians will be evaluated on their proficiency in deploying XtremIO and X2 systems. This encompasses understanding the necessary resources for installation, strategies for rack mounting components in both single and distributed cluster setups, and intricate cabling procedures for diverse configurations. The section also tests knowledge of power distribution and the process of assigning IP addresses to Storage Controllers.
Topic 2	Overview of XtremIO and X2 Features: This section is designed for storage administrators and IT professionals working with Dell XtremIO systems. It examines the differences and similarities between XtremIO and X2 functionalities, with a particular focus on their graphical user interfaces and the enhancements in the X2 version. Candidates are expected to demonstrate their ability to identify and distinguish between various XtremIO and X2 model offerings.
Topic 3	XtremIO and X2 Maintenance: This substantial portion of the exam is tailored for storage support engineers and maintenance technicians. It evaluates the ability to identify system resources, execute power-related procedures, and interpret cluster health indicators and component resilience. Candidates should be prepared to demonstrate their proficiency in replacing various Field Replaceable Units (FRUs) and utilizing the Technician Advisor tool for system installations and health assessments.
Topic 4	XtremIO and X2 Initial Configuration: System administrators and storage implementation specialists will be tested on their ability to perform initial setup of XtremIO systems. This includes the deployment of the XtremIO Management Server (XMS), along with an understanding of its support options and associated safety measures. The exam also covers the installation of Easy-CLI and XtremApp, procedures for cluster setup and validation, as well as the configuration of ESRS and ESRS VE.
Topic 5	XtremIO Online Cluster Expansion: Storage capacity planners and system upgrade specialists will be assessed on their knowledge of expanding XtremIO clusters while systems remain operational. This section covers the identification of necessary resources, preparation steps and prerequisites, and the detailed procedures for scaling clusters from single X-Brick configurations to dual and multi X-Brick setups.

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EMC Dell XtremIO Operate Achievement Sample Questions (Q60-Q65):

NEW QUESTION # 60

Which operation is represented in the exhibit?

A. Write-through Cache
B. Write-back Cache
C. Read Cache Miss
D. Read Cache Hit

Answer: C

Explanation:
If the requested data is not found in cache, it is called a cache miss and the data must be read from the storage.
The back end accesses the appropriate storage device and retrieves the requested data. Data is then placed in cache and finally sent to the compute system through the front end. Cache misses increase the I/O response time.

NEW QUESTION # 61
Which operational state of an XtremIO X2 NVRAM card will trigger SuperCap discharging?

A. Power Restored
B. Data Secured
C. Power Failure
D. Normal Operation

Answer: C

Explanation:
The SuperCapacitor (SuperCap) in an XtremIO X2 NVRAM card is designed to provide power to the card in the event of a power failure.When there is a power failure, the SuperCap discharges to maintain power to the NVRAM card long enough to ensure that all data in transit is written to flash storage, preventing data loss1.
Here's the sequence of events during a power failure:
* Power Failure Detected: The system detects a loss of power to the NVRAM card.
* SuperCap Discharge: The SuperCap begins to discharge, providing backup power to the NVRAM card.
* Data Write: The NVRAM card uses the power from the SuperCap to write any data in transit to the SSDs in the storage array.
* Data Secured: Once the data is safely written to the SSDs, the NVRAM card can safely shut down without risking data loss.
The SuperCap is a critical component that ensures data integrity during unexpected power interruptions. It is not used during normal operation (OB), after data is secured (OC), or when power is restored (OD).Its primary function is to protect data during power failures (OA)1.

NEW QUESTION # 62
A systems administrator wants to add a new XtremlO cluster to their existing XMS that manages multiple clusters. What is a requirement for this activity?

A. XMS needs to manage clusters on the same subnet
B. XMS must manage clusters at the same code
C. XMS code version must be compatible with all clusters
D. XMS must manage no more than six clusters

Answer: C

Explanation:
This ensures that the XMS can effectively communicate with and manage each cluster, regardless of their individual configurations or the specific features they are using.
Compatibility is crucial for the XMS to perform its functions across all clusters, which includes tasks such as monitoring, reporting, and executing management operations.If the XMS code version is not compatible with a particular cluster, it may not be able to manage it properly, leading to potential issues with performance, reliability, and data integrity1.
Therefore, before adding a new XtremIO cluster to an existing XMS setup, the systems administrator must verify that the XMS code version is compatible with the firmware version running on the new cluster, as well as the versions on all other clusters currently being managed.This step is a fundamental requirement to ensure seamless management and operation of the XtremIO storage environment1.

NEW QUESTION # 63
Which file systems support UNMAP on a Linux server connected to an XtremlO cluster?

A. ReiserFS, Ext4, and ZFS
B. Ext4, XFS, and ZFS
C. ReiserFS, Ext3, and XFS
D. Ext3, Ext4, and XFS

Answer: D

Explanation:
For Linux servers connected to an XtremIO cluster, the file systems that support the UNMAP command include Ext3, Ext4, and XFS. The UNMAP command allows these file systems to inform the storage array about blocks that are no longer in use, facilitating better space reclamation and efficiency in storage management.
References:
* Dell EMC documentation on XtremIO configurations for Linux environments confirms the support for UNMAP with these specific file systems.
* Linux kernel documentation also supports the use of UNMAP/TRIM operations with Ext3, Ext4, and XFS for storage optimization.

NEW QUESTION # 64
Which key components within XtremlO X1 provide an enterprise level of continuous availability?

A. Thin Provisioning and Snapshots
B. Inline Data Deduplication and Inline Compression
C. Data Protection and Snapshots
D. Thin Provisioning and Data Protection

Answer: C

Explanation:
XtremIO X1 provides continuous availability through a combination of data protection mechanisms and snapshot capabilities:
* Data Protection: XtremIO X1 uses a unique data protection scheme known as XtremIO Data Protection (XDP), which offers better efficiency and rebuild performance compared to traditional RAID configurations.XDP provides high levels of fault tolerance and ensures data integrity, which is essential for continuous availability1.
* Snapshots: XtremIO's snapshot technology allows for the creation of instant, space-efficient copies of data volumes.These snapshots can be used for various purposes, including backup and recovery, testing, and development, without impacting the performance of the primary system1.
* Continuous Availability: The combination of XDP and snapshots enables XtremIO X1 to provide an enterprise level of continuous availability by ensuring that data is protectedagainst hardware failures and that operations can continue uninterrupted during maintenance or in the event of a disaster1.
XtremIO's approach to data protection and snapshots is designed to meet the demands of enterprise environments where downtime is not an option, and data must be accessible at all times1.

NEW QUESTION # 65
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