Faster DISKUSED checks

We were using one of the derivatives of the original check_netapp perl scripts, and the DISKUSED was always timing out and throwing errors. Running Wireshark showed that each check was pulling down all the data from each and every volume and .snapshot. This ‘Check Netapp NG’ script (for the DISKUSED at least) pulls down the list of all the volumes and .snapshots, but only pulls the Total, Used, and Free of the single volume in question. All our DISKUSED checks are now working correctly!

Best of all, no more flood of false critical alerts texting my phone!