Introduction
Storage can limit the performance of enterprise workloads. Storage is one of the most common bottlenecks in performance. You should know how to design a storage system, monitor a host's storage throughput, and troubleshoot problems that result in overloaded storage and slow storage performance.
There are many catalysts that affect storage performance. These are:
Improper configuration of a storage device
Storage protocols
Queuing and LUN queue depth
Load balancing across available storage
VMFS configuration:
Characteristics of VMFS and RDMs
SCSI reservations
Virtual disk types
Placing more I/O demand than the storage is architected to deliver