Tim, in answer to your question, there is no difference in changing the hi/low watermarks for any array.  you should be able to change the watermarks settings without disrupting anything. Change the low watermark first, then the high watermark, as the low watermark must always be lower than the high watermark.  Jim
I am looking to change our high/low watermark settings from 90/70, respectively to 80/60.  Can anyone tell me if there is a best practice procedure for adjusting the high/low watermark cache settings on a CX4 array?  As an example, should the low watermark be changed first and the settings applied or can both settings be changed at the same time and then applied?  Thanks, Tim
Adjusting HW/LW Cache Settings