Portal | Manuals | References | Downloads | Info | Programs | JCLs | Master the Mainframes
IBM Mainframe Computers Forums Index
 
Register
 
IBM Mainframe Computers Forums Index Mainframe: Search IBM Mainframe Forum: FAQ Memberlist Usergroups Profile Log in to check your private messages Log in
 

 

What happens if we do CICS region bounce

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> CICS
View previous topic :: :: View next topic  
Author Message
mchanapa

New User


Joined: 17 Nov 2011
Posts: 36
Location: India

PostPosted: Thu Nov 17, 2011 2:23 pm    Post subject: What happens if we do CICS region bounce
Reply with quote

Hi . .

Can you please tell me what will happen if we bounce the CICS region to CICS memory area for load modules, CICS tables.
Please tell mw what exactly will happen in CICS bounce and what is the secnario will go for it?

Regards,
Kishore.
Back to top
View user's profile Send private message

expat

Global Moderator


Joined: 14 Mar 2007
Posts: 8593
Location: Back in jolly old England

PostPosted: Thu Nov 17, 2011 2:41 pm    Post subject:
Reply with quote

Explain exactly what you mean by a CICS bounce.

My version of thoughts is that perhaps you mean stopping CICS and then starting CICS. If this is what you also mean, what do you think will happen ?
Back to top
View user's profile Send private message
Garry Carroll

Active Member


Joined: 08 May 2006
Posts: 995
Location: Dublin, Ireland / Edinburgh, Scotland

PostPosted: Thu Nov 17, 2011 4:51 pm    Post subject: Re: What happens if we do CICS region bounce
Reply with quote

mchanapa wrote:
Hi . .

Can you please tell me what will happen if we bounce the CICS region to CICS memory area for load modules, CICS tables.
Please tell mw what exactly will happen in CICS bounce and what is the secnario will go for it?

Regards,
Kishore.


This looks like a follow-on to your earlier thread about refreshing load modules. I've come across the term 'bounce' as referring to bringing the (sub)system 'down-then-up' and presume this is what you mean.

Restarting the CICS region will rebuild the PPT with the disk address of the programs. Programs will then be loaded into memory a tstartup if
RESident or as referenced.

Ga RR y
Back to top
View user's profile Send private message
Bill O'Boyle

CICS Moderator


Joined: 14 Jan 2008
Posts: 2502
Location: Atlanta, Georgia, USA

PostPosted: Thu Nov 17, 2011 11:22 pm    Post subject: Reply to: What happens if we do CICS region bounce
Reply with quote

Bounce (Vernacular) is synonymous with Recycle, but has its subtilties -

A) If the region is restarted as EMER, all the resources will be restored to the way they were before the region was brought down.

B) If the region is brought down via a CEMT PERFORM SHUT (can be abbreviated), then the PLT-SD programs are executed and the region should come down clean. A subsequent restart as AUTO will renew (initialize) all the resources.

C) If the region is brought down via a CEMT PERFORM SHUT IMMEDIATE (can also be abbreviated), then the execution of the PLT-SD programs is bypassed and the region comes down without their execution, which may or may not be a good thing. Because of this, it's wise to restart the region as COLD.

D) If the region is brought down via an MVS CANCEL, it needs to be restarted as COLD. An MVS CANCEL is your last choice and recommended ONLY when all other methods have failed.

Read about START=WARM and/or START=INITIAL and see if they make additional sense to you....

HTH....

Mr. Bill
Back to top
View user's profile Send private message
Garry Carroll

Active Member


Joined: 08 May 2006
Posts: 995
Location: Dublin, Ireland / Edinburgh, Scotland

PostPosted: Mon Nov 21, 2011 12:48 pm    Post subject: Re: Reply to: What happens if we do CICS region bounce
Reply with quote

Bill O'Boyle wrote:
Bounce (Vernacular) is synonymous with Recycle, but has its subtilties -

A) If the region is restarted as EMER, all the resources will be restored to the way they were before the region was brought down.

B) If the region is brought down via a CEMT PERFORM SHUT (can be abbreviated), then the PLT-SD programs are executed and the region should come down clean. A subsequent restart as AUTO will renew (initialize) all the resources.

C) If the region is brought down via a CEMT PERFORM SHUT IMMEDIATE (can also be abbreviated), then the execution of the PLT-SD programs is bypassed and the region comes down without their execution, which may or may not be a good thing. Because of this, it's wise to restart the region as COLD.

D) If the region is brought down via an MVS CANCEL, it needs to be restarted as COLD. An MVS CANCEL is your last choice and recommended ONLY when all other methods have failed.

Read about START=WARM and/or START=INITIAL and see if they make additional sense to you....

HTH....

Mr. Bill


Bill,

I disagree with points C and D. In both of these cases, there may be uncommitted UOWs which need to be resolved by performing an EMER start.

Garry.
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> CICS All times are GMT + 6 Hours
Page 1 of 1

 

Search our Forum:

Similar Topics
Topic Author Forum Replies Posted
No new posts How to Clear all TSQs during CICS sta... Hooman24 CICS 10 Mon Jun 26, 2017 9:46 pm
No new posts CICS Transaction attach count of supp... lind sh CICS 1 Wed Jun 21, 2017 1:33 pm
No new posts CICS Transaction Timeout Hooman24 CICS 2 Sun Apr 16, 2017 2:16 pm
No new posts Date and time format in CICS Chandru3183 CICS 2 Sat Mar 18, 2017 12:46 pm
No new posts IMS region inactive - User abend code... gthmrj IMS DB/DC 5 Tue Mar 07, 2017 12:29 pm


Facebook
Back to Top
 
Mainframe Wiki | Forum Rules | Bookmarks | Subscriptions | FAQ | Tutorials | Contact Us