I have an iMac running 10.6.8 and a My Book Studio Edition II which is completely devoted to Time Machine. The conneciton is the FW 800 cable that came with the drive. There are no other FW devices connected. The drive is configured for RAID 1. WD RAID Manager says everything is healthy. There’s a single partition, HFS+ (Journaled).
Everything runs fine for several days on end, then I notice that the drive has quietly gone offline without warning and Time Machine backups are not occurring. If I unplug and reconnect the FW cable, it’s fine for several more days. There are never any “improperly disconnected” warnings.
Disk Utility’s “Verify” hasn’t turned up any problems, and I have not found any smoking gun in the system logs.
Any help, please?