The correct racking order from bottom to top to expand an XtremIO X1 configuration from a dual X- Brick to a quad X-Brick is as follows: X3-SC1 X3-DAE X3-BBU X3-SC2 As per the image provided, which appears to be a list or part of a document detailing the steps for racking components, the order listed for expanding an XtremIO X1 configuration is: Begin with the bottom component, which is ‘X3-SC1’ (Storage Controller 1). Above ‘X3-SC1’, install ‘X3-DAE’ (Disk Array Enclosure). Next, install ‘X3-BBU’ (Battery Backup Unit) above ‘X3-DAE’. Finally, at the top, place ‘X3-SC2’ (Storage Controller 2). This order ensures that the heavier components are at the bottom for stability and likely follows Dell’s official guidelines for proper airflow and cable management within the rack1. =========================

The correct sequence of steps to power up an XtremIO X1 cluster after an emergency shutdown is as follows: Determine the cause of the shutdown Power up the Battery Backup Units Power up the XMS Power up the Storage Controllers Start the cluster Detailed Explanation with Reference: Determine the cause of the shutdown: Before powering up the system, it is essential to understand why the emergency shutdown occurred to prevent reoccurrence. Power up the Battery Backup Units: The BBUs provide the necessary power to the storage controllers during power-up. Power up the XMS: The XtremIO Management Server must be powered up to manage and monitor the storage system. Power up the Storage Controllers: Once the BBUs and XMS are operational, power up the storage controllers. Start the cluster: Finally, start the cluster to bring the XtremIO system back online and resume normal operations. Reference: Dell XtremIO Power Up Procedures.

The correct order in which the XtremIO X1 cluster components should be powered on for the first time is: PDU (Power Distribution Unit) BBUs (Battery Backup Units) XMS (XtremIO Management Server) Storage Controllers Detailed Explanation with Reference: PDU (Power Distribution Unit): Begin by powering on the PDU to provide power to the entire rack. BBUs (Battery Backup Units): Next, power on the BBUs to ensure power protection for the system. XMS (XtremIO Management Server): Power up the XMS to allow management and monitoring of the storage system. Storage Controllers: Finally, power on the Storage Controllers to bring the storage system online. Reference: Dell XtremIO Installation and Power-Up Guide. Thank you for your visit.

To replace a power supply unit (PSU) in a storage controller of an XtremIO cluster, a specific

command needs to be executed.

The correct command to initiate this process is replace-storage-controller-psu sc-psu-id=1 cluster-

id="ABC123".

This command specifies the action to replace the PSU (replace-storage-controller-psu), the PSU ID

(sc-psu-id=1), and the specific cluster ID (cluster-id="ABC123").

Using this command ensures that the correct PSU in the specified cluster is prepared for

replacement.

Reference: [Dell EMC XtremIO Command Reference Guide]

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.