I’ve stumbled on a useful plug-in from Lars Michelsen that easily monitors a single Windows Server DHCP scope for usage using SNMPv2, but found this fell short of what I needed for monitoring several scopes at once. I’ve modified Lars’ original plugin/script to accommodate all available DHCP scopes on your monitored Windows server. You no longer need to add separate service definitions to monitor all available scopes. It’s worth noting a couple of important details:
Ok, I used four lines, but my needs for retention might be a bit more complex than most. I also spaced each pipeline command, so it looks longer than it should, but readability is important. Additionally, there’s a good half-page of comments in the script than can safely be ignored, unless you want to know what was going through my mind. Most of these related directly to my desired retention periods.
Well, I’ve finally deployed some production Openfiler ESA 2.99.1 machines as home-brew iSCSI boxes, primarily used for backups or low-stress virtual storage. Yes, they’re great — my basic write speeds on a Core 2 Duo box (recycled Dell Precision 390 workstation with 2GB of RAM and a single 1TB drive *no* RAID):
