The P542D is the recommended array choice.

789883-001 Smart Array P542D - 2GB flash based cache module (FBWC), 12Gb/s interface, mezzanine SAS Controller

HPE Smart Array P542D - XL270d Gen9 Svr is the primary storage controller solution. A unique PCIe connection has been designed into the XL270d for this RAID controller. Use of any other controllers will use one of the Low Profile PCIe slots that are typically used for fabric interconnects.

The HPE Smart Array P542D Controller is a high-performance PCIe 3.0 mezzanine controller designed for efficient data management in enterprise environments. It supports a blazing-fast data transfer rate of 12 Gb/s through Serial Attached SCSI (SAS) RAID technology. This controller is specifically tailored to enhance storage performance, scalability, and data protection for HPE Synergy Compute Modules and ProLiant XL270d Servers within the HPE Apollo 6500 chassis.

With its eight external physical links and eight internal physical links, the P542D Controller ensures reliable connectivity and boosts the uptime of Synergy Compute Modules. It enables seamless integration of storage resources, allowing for uninterrupted operations and optimal data access. This controller is an ideal choice for organizations requiring robust storage solutions that can handle demanding workloads and provide enhanced reliability.