Articles: Storage

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HyperDuo Performance

80GB SSD, Safe mode, automatic caching

The HighPoint RocketHybrid 1220 controller is first tested with the simplest configuration possible: the Safe mode saves you the trouble of reinstalling your OS. The controller itself chooses what files to cache.

The RocketHybrid 1220’s Safe mode is similar to Smart Response’s Enhanced mode ("hot" data are copied to both the HDD and the SSD), the single difference being the lack of limitations on the size of the caching SSD.

The difference in performance between the two hybrid technologies is not large, either. The HighPoint controller (in this as well as the other two configurations) loads applications faster than the Smart Response configurations on the first run. This must be due to the fact that some data are originally copied from the HDD to the caching SSD: it takes quite a long time to build a HyperDuo drive.

But when we launch our applications for a second, third, etc. time, the Smart Response configurations prove to be generally faster.

80GB SSD, Capacity mode, automatic caching

Now let's check the HighPoint controller out in the Capacity mode which allows you to make full use of the storage capacity of both the SSD and the HDD. Although the few dozen gigabytes of SSD storage look negligible compared to the terabytes of storage available with today's HDDs, you can still find a good use for them.

The manufacturer claims that the Capacity mode improves performance. Indeed, our tests indicate a certain increase in the speed of loading of our applications. This mode is going to be even more effective at writing since the controller won’t have to copy data in parallel to the slow HDD.

80GB SSD, Capacity mode, selective caching

The performance benefits of the Capacity mode are nice to have, but can we improve them by manually selecting the folders we want to be cached?

We checked this out by moving the folders of our test applications and all of the movable Windows folders to the SSD.

As you can see in the diagram, this helped us increase the resulting performance a little, although not without some odd results that we will discuss later on.

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