"High Availability" Sun/Sybase sytems

[st-andy!ric at uunet.uu.net]

I'm posting this question for a friend who is not on the net (yet) 
so please bear with me if the question is abit vague. 

Has anyone had any experience setting up a "High Availability" Sybase 
system on Suns similar to the VAX Sybase Companion Server?

The System would be set up so that if the production server's machine 
went down there would be an automatic switching to a backup machine 
running the backup server. I think mirrored disks are also involved. 
Apparently the VAX software/hardware does all this.

If you have any info on this type of system and respond on the net or
via e-mail could you supply a phone number that my friend could 
contact you.

Thanks in advance,

Ric

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