Linux – Disk Monitoring with cronjobs — report disk issues

I had the same question a while ago. The first thing I thought of was using WMI, but for some weird reason, WMI doesn't expose the health of a RAID volume through any of the normal Win32_* classes.

I eventually stumbled across the script in this article and made a few modifications to suit my requirements. It parses the output of diskpart.exe's "LIST VOLUME" command. This may seem a little dirty and ugly, but right now its the best option I've seen.

The script as it appears on the linked page is ready to be used with Nagios / NSClient++. If you know a bit of VBScript it's easy enough to modify this to send e-mail instead of printing status information.

If you don't know VBScript, I'll gladly give you a modified version which will do whatever you want it to.

I use the data coming out of the (i)DRAC, combined with the data that ESXi harvests via CIM, with vCenter configured to alert on faults coming out of the CIM monitoring.

I'm a little unclear on what you're saying about the trustworthiness of the CIM data, but I personally trust it a heck of a lot more than I would trust the SNMP traps being fed to WhatsUp. CIM will catch and throw alerts on something as minor as low voltage on the BIOS battery, as long as your hardware is well supported (as recent Dell equipment is), and vCenter is pretty flexible about choosing what, where, and how often you throw alerts on those events.