VSAN 6.2 Configuration Maximums

1. Number of ESXi Host Required
Minimum = 2 (With Remote Witness Appliance), 3 (Without Witness Appliance)
Maximum = 64 (Refer KB 2110081)

2. Maximum number of VMs allowed
Per ESXi = 200 VMs
Per Cluster = 6400 VMs

3. Maximum number of VMs protected by vSphere HA
Maximum = 6400 VMs

4. Disks, disk group and flash device maximums
Capacity Disks = 35 Maximum, 1 Minimum
Cache Disks = 5 Maximum, 1 Minimum
Disk Groups = 5 Maximum, 1 Minimum

5. Component Maximums
45000

6. Maximum Size of each component
255 GB
For objects greater than 255GB in size, VSAN divide them in mulitple components

7. VM Storage Policy Maximums

	Minimum	Maximum	Default
Number of disk stripes per object	1	12	1
Number of failures to tolerate	0	3	1
Object Space Reservation	0%	100%	0%
Flash Read Cache Reservation (Only with Hybrid Disk Groups)	0%	100%	0%
IOPS Limit for object	N/A	2147483647	No Limit
Failure Tolerance Method	RAID5/6 or RAID-1(Default is RAID-1)
Disable Object Checksum	Yes/No
Force Provisioning	Yes/No (Default is No)

8. Maximum VMDK Size
62TB

Source:-
VSAN 6.2 Design and Sizing Guide