On Sep 28, 2006, at 10:56 AM, Mark Wheeler wrote:
I seem to recall that quite a long time ago--maybe 5 years now--there
was discussion of doing clustering/HA stuff with Linux guests that
used vCTCs as serial devices. Maybe this could do what you want:
Define one octopus guest, the console server, with dozens of CTC
pairs, each coupled to one other guest, and for each connected guest,
have that guest use the CTC serial device as its console.
Adam
Would IUCV work for this? A lot easier to configure than vCTCs.
At the time, no...
This was back in early 2.4 days.
Now that we have a generic IUCV driver, maybe, although I don't know
if you can make it look enough like a serial-discipline device to run
a console session over. The nice thing about the CTCs was that
somehow it got presented as /dev/ttySx, I think.
I haven't yet gone searching for the Redbook, but I'm pretty sure it
was one of the early z/Linux high-availability ones.
Adam
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