Part number 4Y37A09750
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ThinkSystem M.2 NVMe 2-Bay RAID Enablement Kit (B8P9) — NVMe-only; integrated Marvell 88NR2241 NVMe RAID Controller; supports RAID-0 / RAID-1 / dual single-drive RAID-0; PCIe Gen3 x2 host, x1 per drive.
| raid | Marvell 88NR2241 |
|---|---|
| drives | 2 |
| family | M.2 NVMe RAID |
| interface | PCIe Gen3 x2 host |
| raid levels | 0/1 |
| feature code | B8P9 |
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Ensure you have the appropriate NVMe RAID FoD license, as only Intel-branded NVMe SSDs are supported for RAID configurations. Additionally, verify that you are using Lenovo-qualified NVMe drives for compatibility and consider updating your firmware with the latest Lenovo Bootable Media Creator ISO. [community thread]
To resolve the issue, replace the faulty SSD promptly to avoid data loss. Additionally, check if your server has a RAID card and provide the current array level, along with FFDC logs for further diagnosis. [community thread]
If your server indicates a low CMOS battery, it is necessary to replace the battery. Additionally, updating the firmware may help enhance battery performance. [community thread]
If you're experiencing low write speeds of 15-20 MBps, this may be expected due to the cacheless nature of the 5350 controller, which operates in write-through mode. To potentially improve performance, you can enable the drive cache using the MegaRAID BIOS interface or storcli commands. For significant speed enhancements, consider upgrading to a controller with a cache module. [community thread]
To activate Intel VT-d, reboot the server and press F1 to access the UEFI Setup. Navigate to System Settings, then Operating Modes, set it to Custom Mode, and save the changes. Next, go to Devices and I/O Ports, enable Intel VT for Directed I/O (VT-d) and SR-IOV, then save and reset the system. [community thread]