The Operating System Layer
Like the Linux model, the Operating System layer of the Solaris model too is mapped to a System Details test that tracks the CPU and memory utilization, and a Disk Space test that monitors the disk utilization. Also, similar to the Linux model, the Operating System layer of the Solaris model too measures memory usage, IO waits, swap usage, and uptime of the host. All these tests have been discussed elaborately in The Operating System Layer
The difference however lies in the Disk Activity test of the Solaris model. The metrics reported by this test are slightly different for the Linux and Solaris models.