In the current configurations there is a choice between 1.2/1.8/2.4TB 10k SAS drives and 2.0/4.0TB 7.2k NL-SAS drives.
The current configuration maximum for a single host/node is 4 disk groups consisting of 1 NVMe drive + 5 HDDs for hybrid configurations or 1 NVMe drive + 5 capacity SSDs for all-flash configurations = total of 24 drives per host/node.
Since a single VxRail G-Series chassis can contain up to 4 nodes, theres a total of 6 drives per node.