Objective 3.3 – Configure vSphere Storage multipathing and failover

Multipathing, also called I/O multipathing, is a typical feature in block-based storage (but usually for SAN environments) to establish and manage multiple physical paths between an initiator and the target device, basically to provide better availability and resilience (in case of path failures) but also to improve performance.

Note

Objective 3.3 for VCP65-DCV and VCP6-DCV are the same just because there weren't big changes in those storage functions from vSphere 6.0 to vSphere 6.5.

For more information and details, see the vSphere 6.5 Storage guide (https://docs.vmware.com/en/VMware-vSphere/6.5/vsphere-esxi-vcenter-server-652-storage-guide.pdf.pdf).

Explaining common multi-pathing components

Starting with ESXi 4, ESXi uses a collection of storage APIs and the Pluggable Storage Architecture (PSA) to manage storage multipathing. PSA features will be described later.

There is also an extensible multipathing module called Native...