It’s times like this that I don’t mind that people make fun of me for using RAID 1+0 on my home server. One of my Seagate 400gb PATA drivers emits a ticking noise and is no longer detected by any of my Linux boxes. I don’t think that’s a good sign for the data on that machine. Luckily, the RAID array can run in degraded mode for a bit until a new disk arrives.
Now to find out how much Seagate warranty support sucks.