vSAN Configuration Maximums 6.X
Previous Posts we have discussed about vSAN Cluster Configuration , Here I am sharing the maximum supported configuration on vSAN 6.0 and 6.5 .
vSAN Configuration Maximums
- vSAN ESXi host
- vSAN Cluster
- vSAN virtual machines
- vSAN iSCSI Target , New feature only Available with 6.
| VMware vSAN |
6.5 |
6.0 |
Virtual SAN ESXi host
|
| Virtual SAN disk groups per host |
5 |
5 |
| Magnetic disks per disk group |
7 |
7 |
| SSD disks per disk group |
1 |
1 |
| Spinning disks in all diskgroups per host |
35 |
35 |
| Components per Virtual SAN host |
9000 |
9000 |
| Cache tier maximum devices per host |
5 |
5 |
| Capacity tier maximum devices per diskgroup |
7 |
7 |
| Capacity tier maximum devices |
35 |
35 |
Virtual SAN Cluster
|
| Number of Virtual SAN hosts in a cluster |
64 (Hybrid) 64 (All-Flash) |
64 |
| Number of datastores per cluster |
1 |
1 |
Virtual SAN virtual machines
|
| Virtual machines per host |
200 |
200 |
| Virtual machines per cluster |
6000 |
6400 |
| Virtual machine virtual disk size |
62 TB |
62 TB |
| Disk stripes per object |
12 |
12 |
| Percentage of flash read cache reservation |
100 |
100 |
| Failure to tolerate |
3 for VM virtual disk size <= 16 TB |
3 for VM virtual disk size<= 16 TB |
| 1 for VM virtual disk size> 16 TB |
| Percentage of object space reservation |
100 |
100 |
| Virtual SAN networks/physical network fabrics |
2 |
2 |
Virtual SAN iSCSI Target
|
| Number of iSCSI LUNs per Cluster |
1024 |
NA |
| Number of iSCSI Targets per Cluster |
128 |
| Number of iSCSI LUNs per Target |
256 |
| Max iSCSI LUN size |
62 TB |
| Number of iSCSI sessions per Node |
1024 |
| iSCSI IO queue depth per Node |
4096 |
| Number of outstanding writes per iSCSI LUN |
128 |
| Number of outstanding IOs per iSCSI LUN |
256 |
| Number of initiators who register PR key for a iSCSI LUN |
64 |
Also added to this post find Limitations of vSAN
| vSAN ESXi host cannot be part of multiple vSAN clusters. |
| vSphere DPM is not supported by vSAN |
| RDM, VMFS, diagnostic partition will not supported by vSAN . |
| Space Efficient Sparse Disk (SE Sparse disks ) will not supported on vSAN . |
| vSAN does not support SCSI reservations. |
| Storage I/O Control is not supported in vSAN . |
