The first is the most obvious and is for the actual IX4 unit itself.
The Iomega IX2 or IX4 NAS has two parts to it than can have firmware revisions applying to it. The latter being the topic of this blog post. Though like with anything regular maintenance is required whether this be removing the dust or fluff from the fan at the back or keeping the firmware up-to-date. I’ve been running an Iomega IX4 in my home vSphere lab 24×7 for the past two years and have found it to be a nice reliable NAS device.
