RAID increases performance by allowing multiple drives to process I/O requests simultaneously. RAID can
also prevent data loss in case of a drive failure by reconstructing (or rebuilding) the missing data from the
failed drive using the data from the remaining drives.
RAID array (also known as RAID drive group) is a group of multiple physical drives that uses a certain
common method to distribute data across the drives. A virtual drive (also known as virtual disk or logical
drive) is a partition in the drive group that is made up of contiguous data segments on the drives. Virtual drive
is presented up to the host operating system as a physical disk that can be partitioned to create OS logical
drives or volumes.
An introduction to RAID is available at the following Lenovo Press website:
https://lenovopress.lenovo.com/lp0578-lenovo-raid-introduction
Detailed information about RAID management tools and resources is available at the following Lenovo Press
website:
https://lenovopress.lenovo.com/lp0579-lenovo-raid-management-tools-and-resources
Intel VROC
Enabling Intel VROC
Before setting up RAID for NVMe drives, follow the below steps to enable VROC:
1. Restart the system. Before the operating system starts up, press the key specified in the on-screen
instructions to enter the Setup Utility. (For more information, see the “Startup” section in the LXPM
documentation compatible with your server at
https://pubs.lenovo.com/lxpm-overview/.)
2. Go to System settings ➙ Devices and I/O Ports ➙ Intel® VMD technology ➙ Enable/Disable Intel®
VMD and enable the option.
3. Save the changes and reboot the system.
Intel VROC configurations
Intel offers various VROC configurations with different RAID level and SSD support. See the following for
more details.
Notes:
• Supported RAID levels varies by model. For the RAID level supported by SR630 V4, see Technical
specifications
.
• For more information about acquiring and installing the activation key, see
https://fod.lenovo.com/lkms.
Intel VROC configurations for
PCIe NVMe SSDs
Requirements
Intel VROC Standard • Supports RAID levels 0, 1, and 10
• Requires an activation key
Intel VROC Premium • Supports RAID levels 0, 1, 5, and 10
• Requires an activation key
Bootable RAID • RAID 1 only
• Supported by Intel® Xeon® 6 Scalable processors (formerly codenamed as
Sierra Forest, SRF)
• Requires an activation key
Chapter 6. System configuration 295
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