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VROC will not show up ,If there is not configure of the VMD(Volume Management Device).
It will show at here Advanced > Socket Configuration>IIO Configuration > Intel VMD technology.
Choose the CPU that your NVMe disks used, if you don’t know, config them all one by one.
If there is auto-configuration, you can enable it, if not you have to configure it by hand.
Then choose the disk slot (VMD port XX-Slot XX) that your NVMe disks used, if you don’t know, configure them all one by one.
Default NVMe Raid can only done inside a CPU, which means you can raid at most 4 NVMe disks in a Raid.
If you want to make a cross-CPU raid, you have to enable RAID Spanned over VMD Controllers when you do the raid.
You can see the detailed configuration steps in the official document.
G6: Support - 04-Configuring an NVMe VROC module- H3C
G3,G5:Support - 04-Configuring an NVMe VROC module- H3C
VROC config will not apper before enable the VMD