How to Check Negotiated Speed on Fibre Channel HBAs

Fibre channel storage is great because it mostly “just works”. You provision storage, assign it to the WWPNs, rescan the adapters, and the luns are presented. There isn’t a lot of configuration in the GUI and, honestly, it can be hard to detect link speed or even if a link is up. In the Storage Adapter tab you can see if a path is down, but how do you detect the link speed?

Investigating VM Configuration Changes

Tracking resource configuration is a common struggle for an enterprise level environment. Even SMBs can have trouble keeping track of how their memory is provisioned and when it changes. What’s worse, VMware’s vSphere Client doesn’t provide any insight as to what changes when someone edits the virtual machine settings. An event named”Reconfigure virtual machine” hits the task log but this isn’t a lot of information. If you open Edit Settings and click OK vCenter registers this event even if you didn’t change anything.