Chapter 1. DS8000 characteristics 5
means a more expensive solution. In this chapter, we provide recommendations and general
rules for different hardware components. Remember, use general rules when no information
is available to make a more informed decision. And in general, when options are available for
automated tiering and rebalancing, in the most typical cases, use these options.
1.1.3 Modeling your workload
A much better way to determine the hardware requirements for your workload is to run a Disk
Magic model. Disk Magic is a modeling tool, which shows the throughput and response time
of a storage server based on workload characteristics and the hardware resources of the
storage server. By converting the results of performance runs into ...