Win32_SystemPartitions - The Win32_SystemPartitions class represents an association between a computer system and a disk partition on that system.

Win32_SystemPartitions
The Win32_SystemPartitions class represents an association between a computer system and a disk partition on that system.
NameSpace Path
\ROOT\CIMV2
PROPERTY	SMS_REPORT	CIMTYPE	DESCRIPTION
GroupComponent		Reference	The GroupComponent reference represents the Win32_ComputerSystem containing the properties of the computer system where the disk partition is located.
PartComponent		Reference	The PartComponent reference represents the Win32_DiskPartition containing the properties of a disk partition that exists on the computer system.
SAMPLE DATA INSTANCE
[LOCALE(1033): ToInstance Amended] instance of Win32_SystemPartitions { GroupComponent = "\\\\SCCM01\\root\\cimv2:Win32_ComputerSystem.Name=\"SCCM01\""; PartComponent = "\\\\SCCM01\\root\\cimv2:Win32_DiskPartition.DeviceID=\"Disk #0, Partition #0\""; };