Dredging up a conversation from last year. I know in theory the horse
is dead, but I think I might have seen a twitch.
>> On Thu, 8 Feb 2007 10:35:56 +0100, Remco Post <r.post AT SARA DOT NL> said:
> Really I've never seen anybody recommend anything above one zone per
> HBA.
The 'Implementing IBM Tape in Unix Systems' redbook talks about
dynamic load balancing (per tape open) across all available HBAs.
This leads me to think that, if I have 4 HBAs devoted to tape traffic,
I want to have each one zoned with all my (dual ported, natch) tape
connections. This sounds sane, so far. But then I do math and get
8 drives * 2 ports * 4 HBAs = 64 rmt devices for my 8 drives. I know
that instAtape will collapse those down so I only need to use the -PRI
devices for e.g. paths. but it just makes me feel odd to have so
many. So, I'm wondering:
Am I being silly? Just go ahead and do it? Should I be zoning some
of the HBAs for port 0 on the tapes, others for port 1?
I have an inclination, which I am working to stifle, to have this neat
spirograph of a venn diagram so that HBA 1 is connected to odd ports
of even tapes, and HBA 2 is connected to ...
- Allen S. Rout
- Maybe that was just maggots?
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