I was recently working with a customer who had a very detailed naming scheme for objects. The naming scheme was so detailed that some objects would have exceeded the maximum number of characters permitted by VMware vSphere. I couldn’t find a VMware KB article that listed the maximum character lengths for objects so I have provided them below in the interim.
For testing I connected to a vSphere 6.7 vCenter Server and attempted to create objects with the character string below which includes 81-characters
|Virtual Machine||80 characters|
|Resource Pool||80 characters|
|Distributed Switch||80 characters|
|Distributed Port Group||80 characters|
Error Messages when attempting to use more than 80-characters
Datastore & Resource Pools – No Error
Note: It appears as though you can create Datastores and Resource Pools with 81-characters, but if you look closer you will see that the name is being truncated.
Cluster Name – Cluster name exceeds 80-characters. Enter a new name.
Folders & Virtual Machines – The name is too long. Up to 80 characters may be used (fewer if the characters %, \ or / are used)
Datacenter – Operation failed. <name entered> is invalid or exceeds the maximum number of characters permitted.