How should the RAID group(s) and logical volume(s) be configured on an HCP G10 node with six internal drives?

The standard and officially supported configuration for a Hitachi Content Platform (HCP) G10 node with six internal data drives is to create a single RAID 6 group. This configuration provides dual-parity protection, which is essential for the data durability required by an object storage archive. The entire capacity of this single RAID group is then presented as a single logical volume (LDEV/LU). This creates a unified, large storage pool that the HCP software is designed to manage for storing object data, maximizing capacity and simplifying system administration.

B. a single RAID group with three logical volumes: This unnecessarily partitions the storage pool, which is contrary to the HCP software's design that expects a single, contiguous data volume.

C. three RAID groups each with a single logical volume: Creating three separate RAID groups (e.g., three RAID 1 pairs) would drastically reduce usable capacity and is not the prescribed hardware configuration for an HCP G10 node.

D. three RAID groups each with three logical volumes: This configuration is illogical and unsupported. It is not possible to create three logical volumes on a two-drive RAID group, and it deviates from the required architecture.

1. Hitachi Content Platform G10 and G11 Hardware Installation and Configuration Guide (MK-92HCP057-11)

Section: "Configuring the RAID controller"

Content: The guide explicitly instructs the installer to configure the six 3.5-inch SAS data drives into a single RAID 6 array. It then details the process of creating one logical drive (LD) that uses 100% of the space available on that single array. This confirms the "single RAID group, single logical volume" architecture.

2. Hitachi Content Platform (HCP) System Architecture Overview

Section: "Hardware Components and Layout"

Content: Official architectural documents describe the G-series nodes as having a standardized internal storage layout to ensure performance and reliability. The data drives are configured as a single RAID 6 protected pool, which is then utilized by the HCP software as a monolithic storage volume for the object repository. This design choice simplifies the software's storage management layer.