TEST BENCH AND PROTOCOL
In testing the Adaptec ASR-74205, along with all enterprise products, we focus on long term stability. In doing so, we stress products not only to their maximum rates, but also with workloads suited to enterprise environments.
We use many off-the-shelf tests to determine performance, but we also have specialized tests to explore specific behaviors we encounter. With enterprise drives, you will see that we do not focus on many consumer level use-cases.
Our hope is that we present tangible results that provide relevant information to the buying public.
You can access the Series 7 adapters in a number of ways. The maxVIEW Storage Manager is a browser-based application that gives you access to all of the major functions of the adapter. It is clean, simple and easy to use.
Adaptec also includes a command line interface (CLI) where you can control most functions of the adapter. In fact, we were able script many of our tests using the CLI.
If all else fails, you can always configure the adapters via the option ROM during POST.
The Adaptec ASR-72405, like all RAID controllers, can be configured in countless ways. Unfortunately, it would take us months to test them all, so we are using the most common modes. As recommended by the MaxVIEW Storage Manager, the write caching was disabled for all tests. All other options on the controller and the logical drive were left in their default states.
The Series 7 adapters also support multiple modes of operation: Physical Drive, Simple Volume and RAID. Physical drive mode operates the adapter in HBA mode, where all caching is disabled. Simple volume mode adds metadata to each drive so that you can use write caching. RAID mode opens up all of the features of the adapter.
All of our tests were performed in RAID mode.