Re: Disappearing FireWire drives

[Tom Baker]

Thanks Bruce, that's a good thought, but all three drives are 
externally powered, each with its own power supply, plugged into a big 
APC battery backup. They're all OWC FireWire Mercury drives, one of 
them a FW 40-type 120-gig, and the other two FW-800 250-giggers. Any 
other idea what the trouble might be? I lose these drives off the 
desktop a couple times a day now, and have to go wiggling and 
replugging their cables to get them back again, a real pain in the 
neck.

Thanks,
Tom
On Sep 10, 2004, at 4:29 PM, Bruce Johnson wrote:
On Sep 10, 2004, at 2:46 PM, Tom Baker wrote:
This is a G-4 733 running 10.3.5, with three external FireWire drives 
chained together and plugged into one of the Mac's FW ports. The 
drives keep randomly disappearing from the desktop. Sometimes none of 
them show up on startup, while at other times I might see one, or 
two. To get the missing one(s) back all I have to do is unplug and 
replug the cables that chain the drives together, or else the one 
plugged into the Mac (it IS all right to plug and unplug FireWire 
cables live, isn't it?), but how come I have to do that?
Are these drives externally or bus powered? You might be running at 
the edge of the bus power limit.

--
Bruce Johnson
University of Arizona
College of Phar macy
Information Technology Group
Institutions do not have opinions, merely customs

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