Please pardon me for jumping in, but FWIW:

        In our environment (zOS V2.2) we start HWIBCPII before JES2 after an 
IPL. One of the first messages that BCPII issued is:

        HWI015I BCPII IS WAITING FOR THE PRIMARY SUBSYSTEM TO BECOME 
        ACTIVE TO ALLOW THE BCPII COMMUNICATION RECOVERY ENVIRONMENT 
        TO BE ESTABLISHED.       

        Explanation                                                             
         
                                                                                
 
        BCPii is waiting for the BCPii communication recovery environment to be 
         
        established to handle unexpected errors during communication processing 
using    
        the z/OS Language Environment. While BCPii is waiting for the primary   
         
        subsystem to become active, if a severe error occurs while processing a 
BCPii    
        communications request and a CEEDUMP is requested, one will not be 
taken. The    
        CEEDUMP processing of BCPii requires the primary subsystem to be active 
to       
        write the dump to SYSOUT.     

        Hth
        Tony                                                  
                                                                                
                                     

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Ed Jaffe
Sent: Tuesday, June 05, 2018 1:26 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: HWIBCPII

On 6/4/2018 9:58 PM, Barbara Nitz wrote:
> How is LE to know that it runs under an implicit sub=mstr?

LE should never know or care about that!

If LE tries to allocate/open CEEDUMP and that operation fails (in *any* 
environment, not just SUB=MSTR), then it should fall back to another way of 
taking the dump -- for example, IEATDUMP.

--
Phoenix Software International
Edward E. Jaffe
831 Parkview Drive North
El Segundo, CA 90245
http://www.phoenixsoftware.com/
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