In some cases, the vSphere administrator isn't aware of the maximum configuration or limitations of the vSphere storage, for example, the maximum volume size of VMFS volume, or number of targets per HBA adapter. It gives some configuration errors during vSphere storage configuration. It has a different maximum configuration and limitation in each edition of vSphere. The following table shows the common maximum configuration settings in a vSphere 5.1 host:
Items |
Maximum |
---|---|
LUNs per ESXi host (FC Channel) |
256 |
LUN size (FC Channel) |
64 TB |
LUN ID (FC Channel) |
255 |
Number of HBAs of any type (FC Channel) |
8 |
HBA ports (FC Channel) |
8 |
Targets per HBA (FC Channel) |
256 |
Raw device mapping size (virtual mode)—VMFS3 |
2 TB minus 512 bytes |
Raw device mapping size (physical mode)—VMFS3 (Note that if the presented LUN is greater than 2 TB) |
2 TB minus 512 bytes |
Block size—VMFS3 |
8 MB |
File size (1 MB block size)—VMFS3 |
256 GB |
File size (2 MB block size)—VMFS3 |
512 GB... |