Hitachi HQT-4180 Practice Test Questions, Exam Dumps

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HQT-4180 Hitachi Practice Test Questions and Exam Dumps

Question No 1:

What are two functions of the LAN Blade in the VSP Midrange family? (Choose two.)

A. It provides the LAN connection to the file module.
B. It provides the maintenance port connecting to the MPC.
C. It provides the iSCSI connection to the servers.
D. It provides the management port connecting to the customer LAN.

Correct Answer: A, D

Explanation:

The LAN Blade in the VSP Midrange family plays a critical role in managing and facilitating various network-related functions for the storage system. Let's review the options:

A. It provides the LAN connection to the file module.

This is correct. The LAN Blade facilitates the LAN connection between the VSP system and file modules, which are essential for file-based operations within the system. It allows data to be transmitted across the network, enabling communication between the VSP and the file storage components.

B. It provides the maintenance port connecting to the MPC.

This is incorrect. The maintenance port connecting to the MPC (Management Processing Controller) is typically not provided by the LAN Blade. The MPC is more directly associated with the system’s overall management functionality, but the LAN Blade focuses on network connectivity rather than specific maintenance operations.

C. It provides the iSCSI connection to the servers.

This is incorrect. While the VSP system may support iSCSI connections, these typically involve different components or blades (such as the FC Blade) in the architecture. The LAN Blade does not typically handle iSCSI-specific connections to servers but rather deals with general network traffic and management tasks.

D. It provides the management port connecting to the customer LAN.

This is correct. The LAN Blade includes a management port that connects to the customer’s local area network (LAN). This port is used for administrative tasks, such as system monitoring and configuration, and it provides the interface for management tools that administrators use to monitor and maintain the VSP system.

The two correct functions of the LAN Blade in the VSP Midrange family are A. It provides the LAN connection to the file module and D. It provides the management port connecting to the customer LAN. These two functions highlight the LAN Blade’s role in network connectivity and system management.

Question No 2:

A customer wants to upgrade a VSP G700 to 512 GB RAM capacity. What is the valid CFM configuration?

A. two BM35 per controller
B. two BM45 per controller
C. one BM45 per controller
D. two BM35 per system

Correct Answer: B

Explanation:

In this scenario, we are dealing with a VSP G700 (Virtual Storage Platform G700), which is a high-end storage solution from Hitachi Vantara. The system's RAM capacity upgrade requires choosing the correct configuration for CFM (Cache and Fabric Memory) modules to reach the desired memory level, specifically 512 GB.

Let's break down the options and understand why B is correct:

A. two BM35 per controller:

BM35 refers to a specific Cache and Fabric Memory module configuration. However, using two BM35 modules per controller does not provide enough capacity to meet the 512 GB RAM target for the system. The individual memory capacity of the BM35 module is lower than what is required for the 512 GB upgrade.

Therefore, this option is not correct as it doesn't meet the required capacity.

B. two BM45 per controller:

BM45 modules have a higher memory capacity compared to BM35. When you use two BM45 modules per controller, you will have sufficient memory to achieve the desired 512 GB of total RAM capacity. This configuration is the one that correctly meets the memory requirements for the upgrade.

Hence, B is the correct answer.

C. one BM45 per controller:

While BM45 modules are appropriate for memory upgrades, one BM45 module per controller will not provide enough memory to reach the required 512 GB target for the system. You need two BM45 modules per controller to achieve that goal.

This option is incorrect because it does not meet the required memory capacity.

D. two BM35 per system:

This option is misleading because the system's configuration requires the memory modules to be installed per controller, not per system. The BM35 modules, as mentioned earlier, do not provide enough capacity on their own, and this configuration is not valid in the context of achieving a 512 GB upgrade.

This is incorrect because the memory modules must be installed per controller, and the configuration is not enough to meet the required capacity.

The correct configuration to upgrade the VSP G700 to 512 GB RAM is two BM45 per controller. This configuration provides the necessary memory to achieve the target capacity, making B the correct choice.

Question No 3:

How many batteries does a VSP E1090 have per controller (CTL)?

A. 1
B. 2
C. 3
D. 4

Correct Answer: B

Explanation:

The Hitachi Virtual Storage Platform (VSP) E1090 is a high-performance storage system designed for enterprise environments. Each controller (CTL) in the VSP E1090 is equipped with two batteries. These batteries serve as backup power sources for the system's cache memory, ensuring data integrity in the event of a power failure. The batteries are typically housed in a canister, part number 5541807-A, and are user-replaceable. It's important to note that the system may have up to four of these canisters in each DKC (controller or CBX frame), depending on the number of cache cards installed.Therefore, the correct answer is B. 2 batteries per controller.

Question No 4:

A customer has a VSP G370 with the encryption license key installed. They now want to have all the DP-Volumes of a certain pool located on encrypted RAID Groups. What are two requirements? (Choose two.)

A. The controller board must support encryption.
B. The RAID level of RAID Groups in the pool must be RAID 6.
C. At least 20 GB of Shared Memory must be installed.
D. The RAID Groups in the pool must be formatted with encryption enabled.

Correct Answer: A, D

Explanation:

In the scenario described, the customer wants to ensure that all the Data Protection (DP) volumes in the pool are located on encrypted RAID groups in a VSP G370 system with encryption enabled. To meet this requirement, certain conditions must be fulfilled.

Requirement A: The controller board must support encryption

For encryption to be fully functional, the VSP G370's controller board must have the necessary support for it. Encryption is managed at the hardware level, so a compatible controller board is essential for encryption operations. If the board does not support encryption, even if the license key is installed, encryption functionality will not be available. The controller board must be capable of handling the encryption operations, such as key management and encryption/decryption of data as it is written to or read from the disks.

Requirement D: The RAID Groups in the pool must be formatted with encryption enabled

When creating a RAID group in a storage system like the VSP G370, the encryption feature needs to be enabled when the RAID group is formatted. This ensures that any data stored on the disks in those RAID groups is automatically encrypted at rest. Encryption cannot be applied to existing, non-encrypted RAID groups. Therefore, it is crucial to ensure that encryption is explicitly enabled during the creation or reformatting of the RAID groups in the pool to meet the customer's requirement of encrypted DP volumes.

Why the Other Options Are Incorrect:

B. The RAID level of RAID Groups in the pool must be RAID 6:
The RAID level (RAID 6 in this case) is not a requirement for encryption. Encryption can be applied to any RAID level supported by the system. The choice of RAID level is more about redundancy and performance rather than encryption. The system can encrypt data regardless of the RAID level being used, so this option is not necessary for enabling encryption.
C. At least 20 GB of Shared Memory must be installed:
While having adequate memory is essential for overall system performance and operations, there is no specific requirement for a minimum of 20 GB of shared memory just to enable encryption on RAID groups. Shared memory is important for managing data and cache, but the encryption process relies more on the controller board's capabilities and the formatting of RAID groups rather than a fixed memory requirement.

The two key requirements for enabling encryption on RAID groups are that the controller board must support encryption (A) and that the RAID groups must be formatted with encryption enabled (D). These ensure that the data protection volumes on the specified pool are encrypted according to the customer’s needs.

Question No 5:

Which three RAID configurations are supported by VSP Midrange systems? (Choose three.)

A. 2D + 2D
B. 4D + 1P
C. 7D + 1P
D. 8D + 1P
E. 10D + 2P

Answer: B, C, D

Explanation:

VSP (Virtual Storage Platform) Midrange systems from Hitachi support a variety of RAID (Redundant Array of Independent Disks) configurations to provide flexibility, reliability, and scalability for data storage. Each RAID configuration offers a different balance between performance, capacity, and redundancy.

Option B (4D + 1P) is correct because it represents a commonly supported RAID configuration, which is a form of RAID 5. In this configuration, four data disks (D) and one parity disk (P) are used. The parity disk is crucial for data redundancy, allowing the array to withstand the failure of one disk without data loss.

Option C (7D + 1P) is also correct and represents another RAID 5 configuration, where there are seven data disks and one parity disk. RAID 5 offers a good balance of storage capacity and fault tolerance, making it a widely used configuration in enterprise environments for its efficiency in handling read and write operations with a degree of fault tolerance.

Option D (8D + 1P) is correct as well, another RAID 5 setup where eight data disks are combined with one parity disk. This configuration increases the overall storage capacity, providing more space for data while maintaining the fault tolerance of RAID 5. Like the previous configurations, it can handle a single disk failure.

Option A (2D + 2D) is incorrect because this configuration does not represent a standard RAID setup used in VSP Midrange systems. It might be a non-standard or invalid representation in this context.

Option E (10D + 2P) is incorrect because VSP Midrange systems do not support this RAID configuration. Typically, configurations with two parity disks are supported in higher-level RAID schemes like RAID 6, but not as a standard option for VSP Midrange systems.

Therefore, the correct answers are B, C, D, as these are the RAID configurations supported by VSP Midrange systems. They provide a mix of performance, storage capacity, and fault tolerance, with RAID 5 being the most commonly used for these types of storage platforms.

Question No 6:

A customer wants to upgrade their VSP E790 with a SAS Expansion feature. What are three requirements? (Choose three.)

A. Two additional Disk Boards (DKBs) have to be installed.
B. Slots B of both controllers must be available for DKB installation.
C. The SAS Expansion license has to be installed.
D. In Shared Memory, the Extension1 has to be enabled.
E. Drive Boxes (DBs) with SAS interface have to be added.

Correct Answer: A, C, E

Explanation:

Upgrading the VSP E790 with a SAS Expansion feature requires careful attention to specific hardware and software requirements to ensure compatibility and performance. The selected options detail the critical requirements for a successful upgrade.

A. Two additional Disk Boards (DKBs) have to be installed
This is a key requirement for enabling SAS Expansion. Disk Boards (DKBs) are required to expand the system's ability to handle additional drives, and for SAS Expansion, it is necessary to install two additional DKBs. These boards allow for an increased number of drives to be connected and managed by the system, making this requirement essential for the expansion.

C. The SAS Expansion license has to be installed
The SAS Expansion license is required to enable the additional SAS ports and associated functionality on the VSP E790 system. Without this license, the system would not recognize or support the added SAS interfaces, making this a fundamental requirement for the upgrade.

E. Drive Boxes (DBs) with SAS interface have to be added
To utilize the SAS Expansion feature, the system must have Drive Boxes (DBs) equipped with a SAS interface. These Drive Boxes connect to the system and provide the physical storage needed for the expansion. Adding these boxes allows the system to expand its capacity and ensure it can accommodate the new SAS devices. This is a critical hardware requirement.

Now, let's review the other options:

B. Slots B of both controllers must be available for DKB installation
While installing Disk Boards (DKBs) is necessary for the upgrade, it is not a universal requirement to have Slot B available on both controllers. The system can still function with DKBs installed in other slots, so this is not a strict requirement for the SAS Expansion upgrade.

D. In Shared Memory, the Extension1 has to be enabled
The requirement for enabling Extension1 in Shared Memory is not directly tied to the SAS Expansion. This option may pertain to other configuration aspects of the system but is not an essential requirement for the SAS Expansion feature. Therefore, this is not a necessary condition for the upgrade.

In conclusion, the three requirements for upgrading the VSP E790 with a SAS Expansion feature are A, C, and E: installing additional Disk Boards, obtaining the SAS Expansion license, and adding Drive Boxes with a SAS interface. These ensure the system can expand its capacity and utilize the full potential of the SAS Expansion.

Question No 7:

What are two valid back-end SAS cable connections on a VSP midrange system? (Choose two.)

A. from DKA to DKB
B. from ENC to ENC
C. from DKB to ENC
D. from DKA to SSW

Correct Answer: B, C

Explanation:

In a VSP (Virtual Storage Platform) midrange system, SAS (Serial Attached SCSI) connections are used to link various components, such as disk arrays, enclosures, and the storage controllers. The connections must be made between appropriate components to ensure proper data flow and system functionality.

A. from DKA to DKB: This is not a valid connection. DKA and DKB refer to two different controllers or components, and SAS cables do not directly connect these two types of components in a back-end configuration. Typically, connections are between controllers and enclosures or between enclosures themselves.
B. from ENC to ENC: This is a valid connection. In a VSP system, ENC refers to a disk enclosure, and SAS cables are commonly used to interconnect enclosures. The connection from ENC to ENC allows data to flow between different enclosures, enabling storage expansion and proper data distribution across the system.
C. from DKB to ENC: This is a valid connection. DKB typically refers to a storage controller or back-end component in a VSP system, and ENC is a disk enclosure. A back-end SAS connection between DKB and ENC connects the controller to the disk enclosure, enabling the controller to manage the disks within the enclosure and facilitate data access.
D. from DKA to SSW: This is not a valid back-end connection. SSW refers to a switch, and a back-end connection typically involves a controller or disk enclosure. The connection between DKA (controller) and SSW (switch) would be part of the front-end data path for communication between storage and clients, not part of the back-end SAS configuration, which focuses on internal connections within the system.

In summary, valid back-end SAS connections on a VSP midrange system would include from ENC to ENC (B) and from DKB to ENC (C), as these involve interconnecting enclosures or controllers to disk arrays within the storage system.

Question No 8:

Which two VSP systems support attached Drive Box Flash (DBF)? (Choose two.)

A. VSP E590
B. VSP F370
C. VSP F700
D. VSP G900

Correct Answer: C, D

Explanation:

The attached Drive Box Flash (DBF) is a feature that is available on certain models of Hitachi Virtual Storage Platform (VSP) systems. DBF allows for the attachment of Flash storage to the main storage system, providing additional performance and storage capabilities.

C. VSP F700: The VSP F700 is one of the systems that support the attached Drive Box Flash (DBF). It is part of the F-series, which includes systems designed for high-end enterprise storage solutions with high performance and scalability. The VSP F700 supports DBF to allow for high-speed flash storage to be added as a component to the system.
D. VSP G900: The VSP G900 also supports the attached Drive Box Flash (DBF). The G-series systems are designed for high performance, with the ability to scale storage capacity significantly. The G900 model supports DBF, offering additional flash storage for applications requiring high throughput and low latency.

Looking at the other options:

A. VSP E590: The VSP E590 is an enterprise-class storage system but does not support attached Drive Box Flash (DBF). The E-series is typically positioned as a mid-range solution, and it may have different storage options than the F700 or G900.
B. VSP F370: The VSP F370 is another system in the F-series but does not support attached Drive Box Flash (DBF). This model is more focused on providing an all-flash or hybrid storage solution without the need for attached flash boxes like the DBF.

In conclusion, the systems that support attached Drive Box Flash (DBF) are VSP F700 and VSP G900, making C and D the correct answers.

Question No 9:

A drive in a 3D + 1P RAID group fails in a VSP G700 and there is no spare drive available. Which two actions are automatically performed by the system? (Choose two.)

A. An alert is generated.
B. Dynamic Sparing is started.
C. The Correction Copy process starts.
D. The RAID group is placed in Correction Access.

Correct Answer: A, C

Explanation:

In a VSP G700 system, when a drive in a RAID group fails, and there is no spare drive available, the system initiates specific automatic actions to maintain data integrity and ensure that operations can continue while the failure is addressed.

Why A (An alert is generated)?

When a drive failure occurs, an alert is automatically generated by the system. This is a critical action for administrators to be notified of hardware failures so they can take corrective action. Alerts are a core feature of storage systems like the VSP G700 to ensure that the issue is detected and addressed promptly. The system will notify the management tools or the administrator, triggering an investigation and, potentially, manual intervention to replace the failed drive or resolve the issue.

Why C (The Correction Copy process starts)?

The Correction Copy process is automatically triggered when a failure occurs in a RAID group, particularly in the absence of a spare drive. This process begins to copy data from the surviving drives to ensure that data integrity is maintained. In cases where there is no hot spare drive available, the system starts this correction process to rebuild the RAID group as much as possible. It attempts to correct the degraded RAID group by using the remaining drives' data, protecting against the risk of data loss while rebuilding the failed drive's data. This is especially critical in RAID configurations like 3D + 1P (3 Data + 1 Parity), where the integrity of data is protected by redundancy but can still be affected by failures.

Why not the other options?

B. Dynamic Sparing is started:
Dynamic Sparing is used to automatically replace failed drives in systems with available hot spares. However, in this case, the scenario specifically mentions that there is no spare drive available. Therefore, Dynamic Sparing would not be automatically triggered because there are no spares to use in the system.

D. The RAID group is placed in Correction Access:
"Correction Access" is not a typical state that a VSP G700 system would automatically transition to during a drive failure. In the event of a drive failure, the RAID group might enter a degraded state or be marked for rebuilding, but it is not automatically placed into a "Correction Access" mode as part of the default process. The focus is typically on initiating the correction copy process and managing the degraded RAID state.

In conclusion, A (An alert is generated) and C (The Correction Copy process starts) are the actions that are automatically performed by the system when a drive fails in a VSP G700 without a spare drive available.

Question No 10:

Which manual should be used when performing maintenance actions on VSP midrange storage systems?

A. Administrator Guide
B. Product Documentation Library
C. Maintenance Manual
D. Service Guide

Correct answer: C

Explanation:

When performing maintenance actions on VSP (Virtual Storage Platform) midrange storage systems, the appropriate manual to consult is the Maintenance Manual. This manual specifically covers the tasks, procedures, and guidelines required for maintaining the VSP system, including troubleshooting, repairs, and routine maintenance activities. It provides step-by-step instructions to ensure that maintenance is performed correctly, safely, and effectively.

Here’s a breakdown of the other options and why they are not the best choice for this task:

A. Administrator Guide: The Administrator Guide is typically focused on setting up, configuring, and managing the system from a functional perspective. While it may contain some maintenance-related information, it is primarily meant for administrators who are managing the system's day-to-day operations, rather than performing detailed maintenance actions.
B. Product Documentation Library: The Product Documentation Library is a collection of all documentation related to the system, including installation, administration, and maintenance manuals. While this library contains valuable information, it is a general reference point rather than the specific manual to use for hands-on maintenance tasks. For performing maintenance, the Maintenance Manual would be more directly applicable.
D. Service Guide: The Service Guide is often intended for service personnel or support teams and may contain information related to troubleshooting and issue resolution. While it could be helpful in certain contexts, it may not provide the specific detailed steps for performing maintenance actions that the Maintenance Manual would cover.

Therefore, the correct manual for performing maintenance actions on VSP midrange storage systems is the Maintenance Manual, as it is specifically designed for these tasks.