Mike Bilow wrote in a message to Tom Ruddy:
 MB> Tom Ruddy wrote in a message to Mike Bilow:
 MB> I would not recommend EIDE servers for any number of reasons.  
 MB> I would also consider "low-cost duplexing" to be an oxymoron.
 TR>   Understood. But the question is; Is it possible to duplex 
 TR> drives (two drives two controllers) using the EIDE interface. I 
 TR> would ASSuME you would be best off using a PCI EIDE controller 
 TR> for at least one controller to avoid using the secondary ports 
 TR> on most motherboards which usually sit on IRQ15. 
 MB> Yes, you can do this.  It is critical that you use one IDE 
 MB> channel for each drive in the duplex set.  If you put both 
 MB> drives in a mirrored set on the same IDE channel, then you will 
 MB> get pathologically slow performance because there is a fairly 
 MB> long transition delay when selecting which device on an IDE 
 MB> channel is active.
 TR>   I wouldn't practice this. I am merely morbidly curious.
 MB> I wouldn't practice this, either.
Not talking about duplexing here (whatever that is),  but this seems to have 
some bearing on an issue that popped up recently elsewhere.  I currently have 
two IDE drives sitting on the first channel,  and a cdrom set up as master on 
the second channel that's in this machine.  It's been suggested to me that I 
might switch the second HD to the secondary channel and put the cdrom on the 
first,  as a slave drive.  What you're saying here seems to suggest that I'd 
get a performance boost by doing so.  Am I reading this right?
email: roy.j.tellason%tanstaaf@frackit.com 
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