Using DTrace to profile zfs: http://dtrace.org/blogs/brendan/files/2011/02/DTrace_Chapter_5_File_Systems.pdf http://dtrace.org/blogs/brendan/files/2011/02/DTra

Using DTrace to profile zfs: http://dtrace.org/blogs/brendan/files/2011/02/DTrace_Chapter_5_File_Systems.pdf http://dtrace.org/blogs/brendan/files/2011/02/DTrace_Chapter... I'm sure other more experienced DTrace users can offer tips but I remember reading this book and learning a lot. And I believe all the referenced scripts were open source and available.