The EVA Controller Layer

The tests mapped to this layer enable you to detect the following:

• Has any cache battery failed?
• Does any controller have a bad cache, a bad mirror connection, or a bad mirror port? If so, which controller is it?
• Has any controller failed?
• Is any controller experiencing abnormally high temperatures?
• Which controller is utilizing CPU excessively?

Figure 1 : The tests mapped to the EVA Controller layer

The tests associated with this layer are discussed in detail in the following topics:

• EVA Cache Battery Test
• EVA Cache Memory Test
• EVA Controller Status Test
• EVA Processor Usage Test