Yeah, so I accidentally kicked the power on my file server yesterday. Whoops. The RAID array came up and said “aww, it looks like you turned the power off when you weren’t supposed to. I’m rebuilding your array and verifying integrity.” It took seven hours (and was usable during that time, and it did a clever job of pausing the array sync when I was uding the disk), but is all working again, without having to fail over to the hot spare. Hooray for 3ware, and hooray that I could monitor all of that from linux. Since I rebooted anyhow, I took the time to resize /usr, which is pretty hard to do on a booted system, which also went smoothly. Hooray for LVM!