Determining the storage performance requirements
Storage performance is an important factor in storage design. The storage must be designed to meet not only the capacity requirements, but also the performance requirements for writes to and reads from the disk. Disk performance is measured in Input/Output per Second (IOPS). One disk read request or one disk write request is equal to one IO. The storage performance must support the current requirements and growth.
How to do it...
The IOPS required to support an application is calculated based on the percentage of read IO, the percentage of write IO, and the write penalty of the RAID level the workload will be hosted on.
To calculate the IOPS requirements, perform the following steps:
Determine the number of IOPS a workload requires.
Identify the percentage of read IO to write IO for the workload.
Determine the write penalty of the RAID level that will host the workload.
Calculate the IOPS the storage must be capable of providing in order to support...
