Power Supplies

I was cleaning the dust out of my server's power supplies a few days ago. They're redundant, so you don't have to take the system down to do that. Swap a spare in for the first module, clean that, swap it in for the second, etc.

Afterwards, I noticed this in the logs:

Sep 27 16:31:24 e3500 sysctrl: [ID 298304 kern.notice] NOTICE: Core Power Supply 1 Removed
Sep 27 16:31:24 e3500 sysctrl: [ID 459609 kern.warning] WARNING: Redundant power lost
Sep 27 16:31:36 e3500 sysctrl: [ID 298304 kern.notice] NOTICE: Core Power Supply 1 Installed
Sep 27 16:31:41 e3500 sysctrl: [ID 298304 kern.notice] NOTICE: Core Power Supply 1 OK
Sep 27 16:31:41 e3500 sysctrl: [ID 404430 kern.notice] NOTICE: Redundant power available

Redundant, fault-tolerant gear rules.