vSphere Storage DRS or vSphere Storage I/O Control support in a vSphere Metro Storage Cluster environment

Purpose

This article describes supported configurations for vSphere Metro Storage Cluster (vMSC) environments relating to vSphere Storage DRS (SDRS) and vSphere Storage I/O Control (SIOC).

Details

In a vMSC configuration, volumes are distributed across locations or sites. VMware supports Storage DRS in uniform and non-uniform configurations with restrictions, these restrictions apply:

·    SIOC is not supported.

·    SDRS is only supported when the IO Metric function is disabled.

·    To control what point in time the migrations occur, run SDRS in Manual Mode.

·    Each location or site needs a datastore cluster formed from stretched datastores and with site bias to that particular location or site.

o For example:

Site A has Datastore Cluster A, which contains all stretched datastores with bias to Site A.

Source: VMware KB