More on CPU specs of the ReadyNAS Pro

On boot up, RAIDiator firmware looks at the system type, and builds a layout for monitor_enclosure (health check program, adjusts fans, sends alerts). Easiest way to deal with your logs is to modify that layout (saved in ramdisk) and restart moitor_enclosure. I haven't tested this out, but it should hopefully work, maybe needing a few tweaks:

# cat /etc/rc2.d/S02readynas_enclosure
 #!/bin/bash
 sed '/^vol/d' /ramfs/enclosure.cfg > /tmp/enc.$$$
 mv /tmp/enc.$$$ /ramfs/enclosure.cfg
 killall monitor_enclosure
 sleep 1
 /frontview/bin/monitor_enclosure

This removes the voltage lines from the layout, then restarts the service. So it won't know to read the voltages, causing logs/email alerts. If you look at /ramfs/enclosure.cfg, you can also see references for the temp/fan sensors.

I had to do a similar boot script for my retro-fitted Repertoire. I replaced the Sparc board with x86 (Ultra4 board). Since the Repertoire chassis has no fans, the system would complain that the fan has failed. The script I used there would tell the system there was no fans to monitor (over the default Ultra4 layout), so no more alerts would occur.