>We've figured out how to setup a SAN and make it available to one of our
>zLinux guest. The Ficon adapter was attached to >the linux guest first with an
>ATTACH command and now with a DEDICATE statement in user direct. That says to
>me I can't >use that Ficon adapter for any other guest that I may want to
>create and attach to the SAN. In other words each guest >will need a Ficon
>card. That seems very limiting. Am I missing something? Is there a better way
>to configure this?
You are ATTACHing/DEDICATEing one address to your guest. You can have multiple
address on one Ficon chpid. Eg in my system:
CHPID PCHID=151,TYPE=FCP,PATH=(CSS(0),35),SHARED, *
PARTITION=(CSS(0),(BWVML),(=))
CNTLUNIT CUNUMBR=3500,PATH=(CSS(0),35),UNIT=FCP
IODEVICE ADDRESS=(4000,032),CUNUMBR=(3500),UNIT=FCP, *
PARTITION=(CSS(0),BWVML)
Which means that I have addresses 4000-401F to attach to guests. In theory that
could mean 32 different guests, but you have to consider aggregate bandwidth as
well. Hope this helps.
Best regards,
Pieter Harder
[email protected]
tel +31-73-6837133 / +31-6-47272537
Brabant Water N.V.
Postbus 1068
5200 BC 's-Hertogenbosch
http://www.brabantwater.nl
Handelsregister: 16005077
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