If more than one data path to the virtual disk has the same weight value, the round robin with subset path selection policy is used to route I/O requests between the paths with the same weight value. The least path weight load balance policy is not supported on Linux operating systems.
Setting Load Balance Policies in Linux
Linux only supports round robin based load balancing. For more information, see Round Robin With Subset.
Setting Load Balance Policies in VMware
VMware supports Asymmetric Logical Unit Access (ALUA). For more information on Most Recently Used (MRU) and Round Robin (RR) load balancing policies, see VMware documents.
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