My CPU and I/O stats have been stuck at extraordinarily high throughput rates for hours. I haven't moved anything or read anything from the SAN since long after the meters got stuck.

I tried restarting nmv and nmc via the command line.

Here you can see an IOSTAT from a bash prompt showing my controller IO (C1) is half that of the current disk I/O for Kilobytes written. (kw/s). I moved a small amount of data to the SAN to illustrate that the GUI is 'stuck' while iostat at the command prompt is reflecting proper figures.