In Chapter 4, Storage Scalability, you learned about the Pluggable Storage Architecture (PSA), VMware SATP, and VMware PSP. What is the relationship between each component in vSphere hosts? During vSphere storage troubleshooting, you should understand the difference between device names, identifiers, and runtime names. The device name can usually be defined by the vSphere administrator, storage identifiers are unique IDs associated with devices, and the runtime name is a path. In the following screenshot, you can see vSphere's data store configuration. There are two types of identifier: 1 x local disk and 4 x FC channel disk. The naa identifier is established by the Network Address Authority (NAA).

This identifier is similar to the MAC identifier in the network interface adapter. In the following screenshot, you can also see two types of drive. One is SAN storage's disk, which is labeled Fibre Channel. The other is a local disk. It is labeled Block Adapter.

The...