This topic describes the feature limits of the vSphere Container Storage Plug-in.

Table 1. Feature Limits
Limits Single Access Volume Multi Access Volume
Number of volumes 10000 volumes per vCenter Server forvSAN, NFSv3, VMFS type datastores and 840 volumes per vCenter Server for vVols type datastores. 32 file shares per vSAN cluster (5 clients per share).
Number of vSphere virtual disk backed RWO PVs per VM with 4 controllers Maximum 59 (with 4 Paravirtual SCSI controllers on VM with 1 slot used for primary disk of Node VM). N/A
Multiple instances of CSI pods in multi-master mode replica = 3 replica = 3
  • In the above table, limits for Single-Access Volume is applicable to both single access filesystem volumes and single access block volumes.
  • vSphere Container Storage Plug-in supports a single vCenter Server only. To use vSphere Container Storage Plug-in, ensure node VMs do not spread across multiple vCenter Server.
  • vSphere Container Storage Plug-in uses only Paravirtual SCSI controllers to attach volumes to Node VMs. Hence, each non Paravirtual SCSI controller on the Node VM reduces the maximum limit for vSphere Virtual Disk Backed RWO PVs per node VM by 15.