At 2:45 this morning, my home office / techie practice server suffered a catastrophic failure of its primary slave disk. Among other things, that disk was responsible for storing the Active Directory log file for the server’s Windows 2003 domain controller. The device itself was a Maxtor 20 gig model going on 12 years of age. It was still in service after the server’s motherboard overhaul because of the Windows 2000 Active Directory Services recommendation: “For best performance, place the database and the log file on separate hard disks.”