D-XTR-MN-A-24 Exam Dumps - Dell XtremIO Maintenance Achievement

In a multi X-Brick XtremIO X1 cluster, the failure of more than half of the COM (communication) cables forces the cluster into a degraded mode. This degraded mode is a protective measure to ensure that the cluster can continue operating with reduced performance and redundancy until the issues with the COM cables are resolved.

The XtremIO X2 storage system can be expanded for capacity (Scale-Up) or both capacity and performance (Scale-Out). The system begins with a single building block, called an X-Brick, with a minimum of 18 SSDs.When additional capacity is required, the system scales up, with up to 72 SSDs for a single X-Brick1. Therefore, to upgrade a single X-Brick XtremIO X2 cluster that already contains 36 SSDs, the minimum number of SSDs required would be 18, which is the base configuration for an X-Brick.

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A key feature of the XtremIO storage array is inline compression. This feature allows data to be compressed in real-time as it is written to the storage system, which helps to reduce storage footprint and improve storage efficiency without impacting performance.

ESRS (EMC Secure Remote Services) configuration verification is typically done using commands that check for system notifications and configurations.

The show-syslog-notifier command is used to verify the settings and configuration of syslog notifications, which is part of the ESRS setup.

This command helps in ensuring that the notifications are correctly configured and functioning as intended, allowing for remote monitoring and management.

The Eaton 1550 Evolution BBU (Battery Backup Unit) uses 1 DB9 and 1 RJ50 connector. These connectors are used for communication and management purposes, ensuring that the BBU can interface correctly with other components of the system.

When connected to the Tech port on a Dell XtremIO Storage Controller, the login name "xinstall" should be used to test the Storage Controller cabling. This special login is designated for installation and configuration tasks, including testing and verifying cabling connections to ensure proper setup and functionality of the storage system.

The field replaceable units (FRUs) on an XtremIO X1 Storage Controller include the entire component and the Power Supply Unit (PSU).This information is verified as per the Official Dell XtremIO Maintenance Achievement document, which outlines the FRU replacement procedures for XtremIO products1.

For an XtremIO X2-S, the ports used on the InfiniBand switches for an Inter-Switch Link (ISL) connection are typically high-numbered ports, which are usually at the end of the port range on the switch.While the specific port numbers can vary depending on the switch model and configuration, ports 35 and 36 are commonly used for ISL connections in many configurations1.

The process to identify the ISL ports is as follows:

Access the InfiniBand switch via the management interface.

Use the appropriate command to list the port configuration (this command can vary based on the switch’s firmware).

Identify the ports configured for ISL, which will be indicated in the port configuration settings.

It’s important to refer to the official Dell XtremIO Maintenance Achievement document or the InfiniBand switch documentation for the exact port numbers as they can differ based on the switch model and the cluster configuration1.

The SAS (Serial Attached SCSI) connection speed for an XtremIO X1 is 6 Gb/s, while for an XtremIO X2, it is 12 Gb/s. The increased speed in the X2 model enhances data transfer rates and overall performance, reflecting advancements in the hardware capabilities of the newer generation.

To service an XtremIO X2 with the Technician Advisor tool, the connection is made through the dedicated Management port located on the back of the Storage Controller (SC).This port is specifically designed for management tasks and allows service technicians to access the system for diagnostics and configuration using the Technician Advisor tool1.

The process typically involves:

Locating the dedicated Management port on the back of the SC.

Connecting a compatible cable from the technician’s device to the Management port.

Using the Technician Advisor tool to perform the necessary service tasks.

This information is outlined in the Official Dell XtremIO Maintenance Achievement document, which provides detailed instructions for servicing and maintaining XtremIO X2 storage systems1.

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In Dell XtremIO X2 arrays, the Disk Protection Groups (DPGs) are organized in such a way that each DPG spans multiple rows of drives. Specifically, DPG-2 in an XtremIO-X2 DAE (Disk Array Enclosure) uses the drives in Row 1 and Row 2. This configuration is designed toensure redundancy and fault tolerance. The drives in these rows collectively form the DPG, which is responsible for data protection and performance optimization.

In an XtremIO X2 system, the maximum number of lifetime cycles for NVRAM is 10,000. This number represents the total count of write and erase cycles the NVRAM can endure throughout its lifespan, ensuring data integrity and reliability over time.

The XtremApp software must be copied into the /xtremapp directory on the XtremIO Management Server (XMS).This directory is specifically designated for the XtremApp software, ensuring that it is stored in the correct location for installation and execution1.

The process for copying the software typically involves:

Accessing the XMS via a secure shell (SSH) connection.

Navigating to the root directory.

Locating or creating the /xtremapp directory.

Using the appropriate command to copy the XtremApp software from its source location to the /xtremapp directory on the XMS.

It is important to follow the Official Dell XtremIO Maintenance Achievement document for the correct procedures and to ensure that the software is placed in the proper directory for successful installation and operation1.

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