The VxRail P-Series nodes support up to 24 disks per node. Only all-flash configurations are supported for SAP HANA for the dual-socket P570F, and only NVMe configurations are supported for the quad-socket P580N, with a minimum of two vSAN disk groups per node and a minimum of three capacity disks per disk group.
Based on capacity requirements, you can configure up to four disk groups with a maximum of five capacity disks per disk group. Every VxRail node must have the same disk group configuration. For performance reasons, it is a best practice that the number of disk groups in the vSAN cluster matches the number of production SAP HANA VMs running in the cluster.
The RAID-1 failure tolerance method is assigned in the storage policy to the SAP HANA persistence (the data and log of each SAP HANA VM), as explained in Assign VM storage policies for SAP HANA data and log. This method provides twice the capacity of the data and log devices as SSD/NVMe capacity.
Although RAID-1 is the default storage policy for all VMs on vSAN and is specifically required for the persistence of production SAP HANA devices, you can create a new capacity-optimized storage policy with RAID-5/6 and assign it to other nonpersistent devices. RAID-5/6 consumes 1.33 times the usable device capacity on disk.