Mark

As Lionel Dyck pointed out, the key characteristic of an HiperSockets 
connection is that it is between two LPARs on the same Central Electronic 
Complex (CEC). Since you mentioned that the two LPARs you want to connect 
using an HiperSockets connection share an OSA feature, you imply thereby 
that the two LPARs belong to the same CEC. The fact that you share an OSA 
feature in itself is not significant for an HiperSockets connection.

Here is a technical presentation designed to introduce you to HiperSockets 
with z/OS:

http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/PRS3120

If you need help with another operating system, z/VM or z/Linux, try the IBM 
pages search box - as I just did.

I'm a little bit familiar with the z/OS use of HiperSockets and, if it's z/OS 
that 
interests you, you should go to section "HiperSockets concepts and 
connectivity" under "Considerations for networking hardware attachment" 
under Chapter 2, "IP configuration overview" in the Communications Server IP 
Configuration Guide.

You will quickly see that you are encouraged to establish your HiperSockets 
connections using the IPCONFIG statement DYNAMICXCF parameter. This is, 
of course, the second source of confusion with HiperSockets - assuming that 
some imagined association with OSA features was the first! XCF is oriented to 
sysplexes and, as you say, your two LPARs do not belong to a sysplex. This is 
a case of IBM trying to be helpful - and saving themselves the need to create 
new definition structures - but ending up causing quite understandable 
confusion.

So just grit your teeth and use the DYNAMICXCF parameter anyhow!

Be aware that there are two VTAM start options which relate directly to 
HiperSockets, IQDCHPID and IQDIOSTG. Also the use of HiperSockets can 
affect the VTAM buffer pools so the usual monitoring of VTAM buffer pool 
usage will be called into play.

I see at least one responder has eschewed using the DYNAMICXCF parameter 
in favour of specifying all the bits and pieces individually. All the while 
continuing with the confusion caused by associating HiperSockets with 
sysplexes and XCF, you will find assurance in specifying the bits and pieces in 
the section "HiperSockets" under "Dynamic XCF" under "Connectivity in a 
sysplex" under Chapter 8, "TCP/IP in a sysplex" in the Communications Server 
IP Configuration Guide. You will need to read the earlier sections 
under "Dynamic XCF" to appreciate that suitable statements for DEVICE, LINK, 
ROUTE and START and suitable statement entries for HOME and 
BSDROUTINGPARMS are all created for you when you use the DYNAMICXCF 
parameter. This being so you may not need to bother with your own ROUTE 
statements or the OMPROUTE address space. However, you will, as always, 
need to consider the routing implications for the rest of your IP network as 
necessary.
 
You didn't actually say you were interested in SNA traffic - but then you 
didn't specifically say you were interested in IP traffic either! Allan 
Staller's 
point that HiperSockets connections cannot be defined for use directly with 
SNA  - as can be the similar but different XCF connections - may be important 
for you. If SNA does interest you, as Allan says, you will need to implement 
Enterprise Extender and you *will* be using APPN, and the HPR flavour of 
APPN, and not what Allan calls "xDomain" by which I assume he means subarea 
SNA.

You are *not* using QDIO with HiperSockets but rather *i*QDIO, 
aka "internal" QDIO. QDIO involves OSA features whereas iQDIO comes "at no 
extra charge" with the CEC hardware.

Finally John McKown's suggestion to search the manuals with "IQD" as a 
search word turns up another important reference and a poorly labeled 
appendix. In Appendix D, "Using HCD", of the Communications Server IP 
Configuration Guide you will see a discussion of how to define your 
HiperSockets to the "hardware" - and only that as far as I can see with a 
quick glance! I have never had actually to do this so I might have missed the 
reference without John's prompt. Otherwise the only hits for "IQD" are in the 
sections I mentioned already.

Chris Mason

On Tue, 21 Apr 2009 09:34:59 -0700, Mark Yuhas 
<[email protected]> wrote:

>We would like to configure the linkage between two LPARs and
>Hipersockets.  The LPARs are members of two different sysplexes.
>However, these LPARs are utilizing the same OSA card.
>
>If this configuration is feasible and/or possible, where is this
>documented and are there examples?
>
>TIA.

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