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NEW QUESTION # 27
In which download section on support.emc.com can the virtual XMS OVA be found?
- A. Add-ons
- B. Full Release
- C. Tools & Utilities
- D. Product Tools
Answer: C
Explanation:
The virtual XtremIO Management Server (XMS) OVA file can be found in the Tools & Utilities download section on support.emc.com. This is confirmed by the information provided in the Dell XtremIO Maintenance Achievement document, which details the resources and procedures for maintaining XtremIO products, including the deployment of the XMS1.
NEW QUESTION # 28
How many expansions are required to expand a Starter X-Brick cluster to an eight X-Brick cluster?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
To expand a Starter X-Brick cluster (which typically begins with one X-Brick) to an eight X-Brick cluster, a total of three expansions are required. Each expansion step in XtremIO can typically double the number of X-Bricks, thus:
First expansion: From 1 X-Brick to 2 X-Bricks.
Second expansion: From 2 X-Bricks to 4 X-Bricks.
Third expansion: From 4 X-Bricks to 8 X-Bricks.
This sequence ensures that the storage array scales properly, maintaining performance and redundancy.
NEW QUESTION # 29
How many connectors, and of which type(s), are used on the Eaton 1550 Evolution BBU?
- A. 2 DB9s
- B. 1 DB9 and 1 RJ50
- C. 1 DB9 and 1 RJ45
- D. 1 DB9 and 1 RJ11
Answer: B
Explanation:
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.
NEW QUESTION # 30
A multi X-Brick XtremlO X1 cluster is being installed. How many BBU connections, and of which type, are required per X-Brick?
- A. 2 BBUs providing protective power to X-Brick 1 and 2 Storage Controllers only
4 BBU COM ports connected to each Storage Controller - B. 1 BBU providing protective power to the Storage Controllers
2 BBU COM ports; one connected to each Storage Controller - C. 2 BBUs providing protective power to the Storage Controllers
1 BBU COM port connected to the bottom Storage Controller - D. 1 BBU providing protective power to the bottom Storage Controller
2 BBU COM ports; one connected to each Storage Controller
Answer: B
Explanation:
For a multi X-Brick XtremIO X1 cluster, each X-Brick requires one Battery Backup Unit (BBU) that provides protective power to both Storage Controllers within the X-Brick. Additionally, there are two BBU COM (communication) ports required, with one connected to each Storage Controller. This configuration ensures that in the event of a power failure, the BBU can maintain power to the Storage Controllers, allowing them to safely shut down and protect data integrity1.
The installation process would typically involve:
Installing the BBU in the designated slot within the X-Brick.
Connecting the BBU power cable to the power supply of both Storage Controllers.
Connecting a BBU COM port to each Storage Controller for communication and monitoring purposes.
This setup is crucial for maintaining the high availability and data protection standards that XtremIO systems are known for1.
NEW QUESTION # 31
In a multi X-brick cluster, what happens when both DAE Controllers in a single X-Brick fail?
- A. Only LUNs with data on that DAE go offline
- B. Cluster performance is degraded
- C. Entire cluster shuts down
- D. Cluster operations continue normally
Answer: A
Explanation:
In a multi X-brick cluster, each X-brick consists of multiple Disk Array Enclosures (DAEs) that work together to provide storage and data redundancy.
If both DAE controllers in a single X-Brick fail, the impact is localized to the LUNs (Logical Unit Numbers) that store data on that particular DAE.
The entire cluster does not shut down; rather, only the data on the affected DAE becomes unavailable.
This design ensures that the rest of the cluster continues to operate normally, albeit with potential performance degradation depending on the data distribution and workload.
NEW QUESTION # 32
In preparation for a dual-to-quad online cluster expansion, how should the active cluster cabling be validated?
- A. Visual inspection only
- B. WebUl
- C. XMCLI only
- D. Easy-Install menu
Answer: D
Explanation:
In preparation for a dual-to-quad online cluster expansion, the active cluster cabling should be validated using the Easy-Install menu. This menu provides a guided and automated way to ensure that all cabling is correctly connected and verified, minimizing the risk of errors and ensuring a smooth expansion process.
NEW QUESTION # 33
What must be submitted with an RPQ prior to a dispersed XtremlO cluster installation?
- A. Wiring diagram and list of cables needed for the cluster
- B. Cabling kits and X-Brick component location diagram
- C. Cabling kits and list of allowed deviations from the RPQ
- D. Wiring diagram and X-Brick component location diagram
Answer: D
Explanation:
When submitting a Request for Product Qualification (RPQ) prior to a dispersed XtremIO cluster installation, it is necessary to include a wiring diagram and an X-Brick component location diagram. The wiring diagram provides a detailed representation of the electrical connections between the components, while the X-Brick component location diagram shows the physical placement of the X-Brick components within the installation environment. These documents are essential for planning the installation to ensure that all components are correctly positioned and connected for optimal performance and serviceability1.
The process for preparing these documents typically involves:
Creating a detailed wiring diagram that outlines all the necessary connections between the X-Brick components and other infrastructure elements.
Developing an X-Brick component location diagram that illustrates where each component will be physically located in the data center.
Reviewing the diagrams to ensure they meet the technical requirements and specifications for a dispersed XtremIO cluster installation.
Submitting the diagrams along with the RPQ for approval before proceeding with the installation.
These steps are crucial for a successful installation and are outlined in the Official Dell XtremIO Maintenance Achievement document1.
NEW QUESTION # 34
What is the minimum number of SSDs required to upgrade a single X-Brick XtremIO X2 cluster that contains 36 SSDs?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
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.
NEW QUESTION # 35
In an XtremIO X2, what is the maximum number of lifetime cycles for NVRAM?
- A. 4,000
- B. 5,000
- C. 10,000
- D. 7,000
Answer: C
Explanation:
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.
NEW QUESTION # 36
On XtremlO X1, what is required before the cluster will start?
- A. End of Life BBUs must be replaced
- B. BBUs must be charged to at least 70%
- C. BBUs must be charged to at least 50%
- D. At least one BBU has to be online
Answer: B
Explanation:
Before an XtremIO X1 cluster can start, it is required that the Battery Backup Units (BBUs) are charged to at least 70%. This ensures that there is sufficient power reserve to maintain data integrity and allow for safe shutdown procedures in case of an unexpected power loss. The BBUs provide power to the Storage Processors and other critical components during an outage, allowing them to complete any in-progress operations and commit data to SSDs1.
The startup process checks the BBU charge level and will only proceed if the minimum charge requirement is met. This is a safety feature designed to protect the system and the data it holds. If the BBUs are not adequately charged, the system will not start, preventing potential data loss or corruption that could occur if the system were to lose power without the ability to properly shut down1.
NEW QUESTION # 37
When preparing for a single-to-dual online cluster expansion, which power cables are pre-staged by being connected to PDU-B only?
- A. X2-SC1-PSU-R and X2-SC2-PSU-R
- B. IBSW-PSU-L and IBSW-PSU-R
- C. X2-DAE-PSU-R and X2-DAE-PSU-L
- D. X1-SC1-PSU-L and X1-SC2-PSU-L
Answer: A
Explanation:
In preparation for a single-to-dual online cluster expansion, the power cables that are pre-staged by being connected to Power Distribution Unit B (PDU-B) only are for the right-side Power Supply Units (PSUs) of the Storage Controllers (SCs). Specifically, these would be the power cables for X2-SC1-PSU-R and X2-SC2-PSU-R. This configuration ensures that there is a balanced power distribution across the PDUs and that the new cluster components will have power connectivity once they are physically installed1.
The process typically involves:
Identifying the correct power cables for the SCs' PSUs.
Connecting these cables to the designated ports on PDU-B.
Ensuring that the cables are properly managed and labeled for easy identification during the expansion process.
This procedure is part of the standard practices for expanding an XtremIO cluster, as detailed in the Official Dell XtremIO Maintenance Achievement document1.
NEW QUESTION # 38
What is the impact of a serial cable failure in a multi X-Brick XtremIO X1 cluster?
- A. Failure of more than half of the BBU COM cables results in a loss of service
- B. Failure of one COM cable results in a loss of service
- C. Failure of one serial cable makes the BBU not visible to the cluster's environment monitoring
- D. Failure of more than half of the COM cables forces the cluster into a degraded mode
Answer: D
Explanation:
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.
NEW QUESTION # 39
What is the SAS connection speed on an XtremIO X1 compared to an X2?
- A. X1: 8 Gb/s
X2: 16 Gb/s - B. X1: 12 Gb/s
X2: 24 Gb/s - C. X1: 6 Gb/s
X2: 12 Gb/s - D. X1: 4 Gb/s
X2: 8 Gb/s
Answer: C
Explanation:
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.
NEW QUESTION # 40
What is the correct sequence of steps to install a virtual XMS prior to creating the cluster on an XtremIO X2?
Answer:
Explanation:
1 - Deploy the OVF Template
2 - Configure the XMS
3 - Transfer the Installation Package to the XMS Server
4 - Install only the XMS
5 - Display the Installation Package on the Storage Controller
NEW QUESTION # 41
Where can the Technician Advisor be found?
- A. SolVe Desktop
- B. support.emc.com
- C. XtremIO GUI
- D. On the XMS
Answer: A
Explanation:
The Technician Advisor can be found on SolVe Desktop. SolVe Desktop is a comprehensive tool provided by Dell EMC that includes installation, maintenance, and troubleshooting procedures for various Dell EMC products, including XtremIO. It is an essential resource for technicians working with these systems.
NEW QUESTION # 42
If an XtremlO X2 array experiences a power failure, which components will protect the journal data?
- A. Supercapacitor and NVRAM
- B. NVRAM and local drive
- C. BBU and NVRAM
- D. BBU and Supercapacitor
Answer: A
Explanation:
In the event of a power failure, the XtremIO X2 array is designed to protect the journal data using a combination of Supercapacitor and NVRAM. The NVRAM (Non-Volatile Random Access Memory) ensures that the data remains intact without power, while the supercapacitor provides the necessary energy to maintain the power to the NVRAM during the outage. This design allows the XtremIO X2 array to preserve the integrity of the journal data until normal power can be restored1.
NEW QUESTION # 43
What is the correct order in which the XtremlO X1 cluster components should be powered on for the first time?
Answer:
Explanation:
1 - PDU (Power Distribution Unit)
2 - BBUs (Battery Backup Units)
3 - XMS (XtremIO Management Server)
4 - Storage Controllers
NEW QUESTION # 44
Upon which technology is the XtremIO X2 WebUl based?
- A. XHTML
- B. XML
- C. HTML5
- D. HTML4
Answer: C
Explanation:
The XtremIO X2 WebUI is based on HTML5 technology. HTML5 is the latest version of the Hypertext Markup Language, the code that describes web pages. It's actually three kinds of code: HTML, which provides the structure; Cascading Style Sheets (CSS), which take care of presentation; and JavaScript, which makes things happen1.
HTML5 is designed to deliver almost everything you'd want to do online without requiring additional software such as browser plugins. It does everything from animation to apps, music to movies, and can also be used to build complicated applications that run in your browser.
XtremIO X2's use of HTML5 allows for a more interactive and responsive WebUI that is compatible with a wide range of devices, including tablets and smartphones, providing a better user experience and easier management of the storage array1.
NEW QUESTION # 45
How much rack space is required for a four X-Brick XtremIO X2 cluster with a physical XMS?
- A. 21U
- B. 19U
- C. 16U
- D. 24U
Answer: A
Explanation:
XtremIO X2 clusters are designed for efficient space utilization in data center racks.
A four X-Brick XtremIO X2 cluster requires specific rack space allocation.
Each X-Brick occupies 5U of rack space. Therefore, four X-Bricks would require 20U.
Additionally, the physical XtremIO Management Server (XMS) occupies 1U of rack space.
In total, the four X-Brick XtremIO X2 cluster with a physical XMS requires 21U of rack space.
NEW QUESTION # 46
How many drives can be lost from a full data protection group before a data loss occurs on an XtremIO X1?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
In an XtremIO X1 system, a full data protection group (DPG) can tolerate the loss of up to 5 drives before a data loss occurs. The XtremIO architecture ensures high availability and redundancy, but losing more than 5 drives within a DPG exceeds the system's ability to protect data, leading to potential data loss.
NEW QUESTION # 47
What is the maximum mixed read/write IOPS rate achievable in a two X-Brick XtremIO X2 array?
- A. 600 K
- B. 300 K
- C. 1000 K
- D. 500 K
Answer: A
Explanation:
This performance metric is derived from the system's ability to deliver linear scalability, meaning that two X-Bricks can deliver twice the IOPS of a single X-Brick configuration2.
The calculation for this is based on the performance of a single X-Brick, which can achieve up to 300,000 IOPS under the same workload conditions. Therefore, with two X-Bricks, the system can achieve double that amount, resulting in 600,000 IOPS1.
This information is crucial for planning and sizing purposes, ensuring that the storage array meets the performance requirements of the applications it supports2.
NEW QUESTION # 48
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