HQT-4420 Hitachi Vantara Qualified Professional - Content Platform Installation Questions and Answers

After adding new nodes to an HCP G10 system, the following actions should be performed:

Upgrade the new nodes' software: Ensuring that the newly added nodes are running the same software version as the existing nodes is essential for compatibility and stability within the cluster.

Run the capacity balancing service: This service redistributes data across all nodes in the cluster to ensure balanced storage utilization and optimal performance, especially after the addition of new nodes.

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These steps are necessary to maintain consistency, stability, and efficient use of resources within the HCP system after scaling up by adding new nodes.

To upgrade a four-node HCP G10 cluster to an eight-node cluster, the customer can use additionalG10orG11node models. The HCP platform supports the addition of both G10 and G11 nodes in the same cluster, as they are compatible with each other in terms of architecture, management, and functionality. This allows the cluster to be scaled up by adding more nodes of either model to meet growing storage and performance needs.

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When expanding an HCP G10 cluster, it is crucial to use node models that are supported and compatible with the existing cluster configuration, such as G10 and G11.

On an HCP G10 node with six internal drives, the recommended configuration is to createa single RAID group with a single logical volume. This setup maximizes the available storagecapacity and provides a balanced approach to data protection, performance, and management simplicity. By using a single RAID group, the HCP system can efficiently manage data redundancy and integrity across all drives.

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Configuring a single RAID group with a single logical volume simplifies management and provides optimal performance and redundancy, which aligns with the best practices for setting up an HCP G10 node.

When performing a six-drive upgrade on an HCP G10 with local storage:

RAID level and Virtual Disks will be created automatically (A):This is correct. The system automatically handles the RAID configuration and creation of virtual disks to ensure that the new drives are correctly integrated into the existing storage structure.

The node is online during this procedure (C):This is also correct. The upgrade can be performed while the node remains online, minimizing disruption to the system's operation and ensuring continuous availability. These procedures are documented in the "HCP G10 Maintenance and Upgrade Guide," which outlines the steps for online upgrades and automatic RAID configuration.

Upgrades can be performed online or offline (C):Hitachi Vantara’s HCP G10 system supports both online and offline upgrades, allowing administrators flexibility in how they choose to perform hardware upgrades. This capability ensures that the system can be updated with minimal disruption to operations. In an online upgrade, the system continues to run with full service availability, while an offline upgrade typically requires bringing the system down. This flexibility is critical for ensuring high availability and maintaining service level agreements.

Data is automatically rebalanced after upgrade (D):After a hardware upgrade, such as adding new nodes, HCP automatically rebalances the data across the cluster. This data rebalancing process is necessary to ensure that data is evenly distributed across all nodes, maintaining efficient storage utilization and performance. Rebalancing occurs as a background task without impacting the normal operation of the platform. HCP's intelligent data placement algorithms manage this process, ensuring optimized performance and data integrity.

These two statements accurately reflect how hardware upgrades and data management are handled in the HCP G10 system, as per Hitachi Vantara's architecture.

References:

Hitachi Vantara HCP Installation and Configuration Guide

Hitachi Vantara HCP Administration and System Management Guide

Pageant is a PuTTY authentication agent that is used to manage SSH keys for public-key authentication. When installing an HCP G10 and needing to connect to the node using PuTTY after installing the OS, Pageant can be used to forward SSH keys, allowing for a more secure and efficient connection without requiring manual password entry each time. Pageant stores the private keys and forwards them to the SSH client when required.

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Pageant is specifically used in environments where SSH key management is necessary, particularly in secure installations of HCP systems where multiple nodes or connections are being managed.

When installing an HCP G10 and setting up front-end connectivity, two critical actions must be performed on each node:

Set the BMC IP Address (A):The Baseboard Management Controller (BMC) IP address must be set to allow for remote management and monitoring of each node. This is crucial for out-of-band management, especially in large data center environments where physical access to servers may be limited. Configuring the BMC IP address is typically done during the initial setup of the operating system on the HCP node.

Set the Front-End IP Address (C):The front-end IP address, which is used for client network traffic, must be configured as provided by the customer. This IP address allows each node to communicate with the client network, and it is a key part of the configuration during OS installation.

These configurations are detailed in the "HCP G10 Network Configuration Guide" and the "HCP G10 Installation and Configuration Manual," which provide step-by-step procedures for setting up both the BMC and front-end IP addresses.