Using RAID to Escape Disaster
Failed hard drives are inevitable. Especially when the drive in question was manufactured on November 27, 2001. You know the time has come to replace it when your log files start filling up with errors like this:
Oct 28 03:53:05 cat kernel: res 51/40:00:fc:33:4e/00:00:00:00:00/e0 Emask 0x9 (media error) Oct 29 16:06:46 cat smartd[24427]: Device: /dev/sdb [SAT], FAILED SMART self-check. BACK UP DATA NOW! Failure is inescapable. Everything fails eventually, computers, people, electronics.