Hi Ed, Thanks for that, but nothing in there really helps planning numbers of devices, except that the minimum must be 3 devices.
Further to my problem with how many Control Units can/must be defined, that book also contains "Table 2-2 OSA modes of operation and addressing support" which contains a row titled "CUs per port" with a value of "16" for "OSA-Express3". No further explanation occurs describing that information. My IBM contact also provided a 6 page document called "OSA-Express3 Definitions", :Copyright IBM Corporation, 2008", that begins with a statment containing:- "there has been confusion as to how these ports should be defined in IOCP (or via HCD/HCM)" which does describe how I am feeling. But that document also does not document the relationship between CHPID/CU/DEV/port clearly. e.g. It does not say code 1 CU per CHPID. On Tue, 5 Jan 2010 21:12:07 EST, Ed Finnell <[email protected]> wrote: > >In a message dated 1/5/2010 7:45:30 P.M. Central Standard Time, >[email protected] writes: > >May I have some recommendations/guidelines as to how many devices I >should now code on these multi-port OSA control units. > > >>> >Venerable Redbook at _www.redbooks.ibm_ (http://www.redbooks.ibm) OSA >Express Implementation Guide SG-5948(05) has been updated for Express3 cards >and z10's. It's a good place to start. > > > > Thanks for you help Bruce Hewson ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
