Re: The best practice of IODF in big system

2017-01-16 Thread Jesse 1 Robinson 
We have three CECs residing in two data centers. Counting both production and 
DR LPARs, we have upwards of two dozen altogether. All disk and tape are cross 
connected locally or via DWDM, so that every LPAR is connectable to every 
device. The whole enterprise is mapped by a single IODF where geographic 
boundaries are entirely invisible. We know where such and such CEC or DASD 
device is located, but IOS has no idea.

Every LPAR must have a copy of the current IODF in order for this to work. For 
redundancy and backup, we supply all sysplexes (some mono) with a shared copy 
of SYS1.IODFxx. The IODF is created and maintained on one sysplex and 
propagated to every other sysplex using the standard HCD utility CBDMGHCP. 
LOADxx in IPLPARM is set to '--' for IODF number, so once a new IODF is 
activated dynamically or via POR, it will be found on the next IPL without any 
sysprog intervention. The IOCDS in each CEC is updated from 'system zero' via 
HCD Option 2.11 ' Build and manage System z cluster IOCDSs, IPL attributes and 
dynamic I/O changes'.

In previous discussions on IBM-Main, others have indicated different strategies 
for accomplishing the same goal. There is not one right way to do this, but of 
course there is one best way. This is it. ;-)

.
.
J.O.Skip Robinson
Southern California Edison Company
Electric Dragon Team Paddler 
SHARE MVS Program Co-Manager
323-715-0595 Mobile
626-543-6132 Office ⇐=== NEW
robin...@sce.com


-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Mohamed Juma
Sent: Sunday, January 15, 2017 3:36 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: (External):Re: The best practice of IODF in big system

Dear Alan,
PROD CEC 1: Two LPARs one Z/OS, and one ICF.
PROD CEC 2 : Two LPARs Z/OS
CF CEC any z/OS lpars? No
TEST CEC:  Three LPARs, one ICF, two Z/OS DR CEC how many lpars? Two ICF one 
TEST, one PROD- Three Z/OS one TEST and two PROD.

Do the lpars share DASD?  Yes all of them sharing two DASD in both HO and DR.
Are the lpars in a SYSPLEX?  two SYSPLEX one for TEST includes all TEST LPARS 
in both Sites. One SYSPLEX for all PROD LPARs in the two sites.
How do you update the DR DASD? via PPRC Do you have real time replication? Yes

Thanks
Mohamed Gomaa
  From: "Field, Alan" 
 To: IBM-MAIN@LISTSERV.UA.EDU
 Sent: Sunday, January 15, 2017 1:18 PM
 Subject: Re: The best practice of IODF in big system
   
Mohamed, more questions:

PROD CEC 1 how many lpars
PROD CEC 2 how many lpars
CF CEC any z/OS lpars?
TEST CEC how many lpars
DR CEC how many lpars?

Do the lpars share DASD? Are the lpars in a SYSPLEX? How do you update the DR 
DASD? Do you have real time replication?

Alan



-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Mohamed Juma
Sent: Sunday, January 15, 2017 4:32 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: The best practice of IODF in big system

Hi,
We have 3 CECs in PROD System (two Z/OS and one External CF), one TEST and one 
more CEC in DR site, I combined them in one IODF.I want to know the best 
practice to copy the IODF to each CEC, and also the IOCDs without suffering 
from H/W and S/W mismatch.
Mohamed Gomaa


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Re: The best practice of IODF in big system

2017-01-15 Thread Feller, Paul 
In our environment we have four CECs.
1 - CF only
3 - running z/OS & z/VM - three different sysplexs

We have one parallel sysplex that crosses all three CECs, the other two base 
sysplex each one a different CEC.

We have several DASD volumes that are setup for limited sharing across all 
three sysplexs.  I say limited because we can’t share the GRS environment 
across the different sysplex.  We do device reserves for a limited enqueue 
setup.  With all that said I will use DFDSS to copy the IODF to the shared DASD 
and then do a DFDSS restore on the other systems.  We use the same IODF name 
across all the lpars.

We do data replication to our DR environment so the new IODF gets to DR by 
default.

Before the shared DASD setup I would have FTP the DFDSS copied file to the 
other lpars and then do the restore.

I don't know if this qualifies as best practice, but this is how I move the 
IODF around.

Thanks..

Paul Feller
AGT Mainframe Technical Support

-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Mohamed Juma
Sent: Sunday, January 15, 2017 05:36
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: The best practice of IODF in big system

Dear Alan,
PROD CEC 1: Two LPARs one Z/OS, and one ICF.
PROD CEC 2 : Two LPARs Z/OS
CF CEC any z/OS lpars? No
TEST CEC:  Three LPARs, one ICF, two Z/OS
DR CEC how many lpars? Two ICF one TEST, one PROD- Three Z/OS one TEST and two 
PROD.

Do the lpars share DASD?  Yes all of them sharing two DASD in both HO and DR.
Are the lpars in a SYSPLEX?  two SYSPLEX one for TEST includes all TEST LPARS 
in both Sites. One SYSPLEX for all PROD LPARs in the two sites.
How do you update the DR DASD? via PPRC 
Do you have real time replication? Yes

Thanks 
Mohamed Gomaa
  From: "Field, Alan" 
 To: IBM-MAIN@LISTSERV.UA.EDU 
 Sent: Sunday, January 15, 2017 1:18 PM
 Subject: Re: The best practice of IODF in big system
   
Mohamed, more questions:

PROD CEC 1 how many lpars
PROD CEC 2 how many lpars
CF CEC any z/OS lpars?
TEST CEC how many lpars
DR CEC how many lpars?

Do the lpars share DASD? Are the lpars in a SYSPLEX? How do you update the DR 
DASD? Do you have real time replication?

Alan



-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Mohamed Juma
Sent: Sunday, January 15, 2017 4:32 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: The best practice of IODF in big system

Hi,
We have 3 CECs in PROD System (two Z/OS and one External CF), one TEST and one 
more CEC in DR site, I combined them in one IODF.I want to know the best 
practice to copy the IODF to each CEC, and also the IOCDs without suffering 
from H/W and S/W mismatch.
Mohamed Gomaa
  

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Re: The best practice of IODF in big system

2017-01-15 Thread Mohamed Juma 
Dear Alan,
PROD CEC 1: Two LPARs one Z/OS, and one ICF.
PROD CEC 2 : Two LPARs Z/OS
CF CEC any z/OS lpars? No
TEST CEC:  Three LPARs, one ICF, two Z/OS
DR CEC how many lpars? Two ICF one TEST, one PROD- Three Z/OS one TEST and two 
PROD.

Do the lpars share DASD?  Yes all of them sharing two DASD in both HO and DR.
Are the lpars in a SYSPLEX?  two SYSPLEX one for TEST includes all TEST LPARS 
in both Sites. One SYSPLEX for all PROD LPARs in the two sites.
How do you update the DR DASD? via PPRC 
Do you have real time replication? Yes

Thanks 
Mohamed Gomaa
  From: "Field, Alan" 
 To: IBM-MAIN@LISTSERV.UA.EDU 
 Sent: Sunday, January 15, 2017 1:18 PM
 Subject: Re: The best practice of IODF in big system
   
Mohamed, more questions:

PROD CEC 1 how many lpars
PROD CEC 2 how many lpars
CF CEC any z/OS lpars?
TEST CEC how many lpars
DR CEC how many lpars?

Do the lpars share DASD? Are the lpars in a SYSPLEX? How do you update the DR 
DASD? Do you have real time replication?

Alan



-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Mohamed Juma
Sent: Sunday, January 15, 2017 4:32 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: The best practice of IODF in big system

Hi,
We have 3 CECs in PROD System (two Z/OS and one External CF), one TEST and one 
more CEC in DR site, I combined them in one IODF.I want to know the best 
practice to copy the IODF to each CEC, and also the IOCDs without suffering 
from H/W and S/W mismatch.
Mohamed Gomaa
  

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you are not the named addressee you must not disseminate, distribute or copy 
this e-mail. Please notify the sender immediately by e-mail if you have 
received this e-mail by mistake and delete this e-mail from your system. If you 
are not the intended recipient you are notified that disclosing, copying, 
distributing or taking any action in reliance on the contents of this 
information is strictly prohibited.


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Re: The best practice of IODF in big system

2017-01-15 Thread Field, Alan 
Mohamed, more questions:

PROD CEC 1 how many lpars
PROD CEC 2 how many lpars
CF CEC any z/OS lpars?
TEST CEC how many lpars
DR CEC how many lpars?

Do the lpars share DASD? Are the lpars in a SYSPLEX? How do you update the DR 
DASD? Do you have real time replication?

Alan



-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Mohamed Juma
Sent: Sunday, January 15, 2017 4:32 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: The best practice of IODF in big system

Hi,
We have 3 CECs in PROD System (two Z/OS and one External CF), one TEST and one 
more CEC in DR site, I combined them in one IODF.I want to know the best 
practice to copy the IODF to each CEC, and also the IOCDs without suffering 
from H/W and S/W mismatch.
Mohamed Gomaa
   

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This email and any files transmitted with it are confidential and intended 
solely for the use of the individual or entity to whom they are addressed. If 
you are not the named addressee you must not disseminate, distribute or copy 
this e-mail. Please notify the sender immediately by e-mail if you have 
received this e-mail by mistake and delete this e-mail from your system. If you 
are not the intended recipient you are notified that disclosing, copying, 
distributing or taking any action in reliance on the contents of this 
information is strictly prohibited.


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Re: The best practice of IODF in big system

2017-01-15 Thread Mohamed Juma 
By the way, we are running two different sysplex, one for PROD and one for 
TEST. Each Sysplex has members in the main data Centre and also DR site 
including Control systems for GDPS and System automation.
Mohamed Gomaa

  From: Mohamed Juma <00cefc9a9b79-dmarc-requ...@listserv.ua.edu>
 To: IBM-MAIN@LISTSERV.UA.EDU 
 Sent: Sunday, January 15, 2017 12:31 PM
 Subject: The best practice of IODF in big system
   
Hi,
We have 3 CECs in PROD System (two Z/OS and one External CF), one TEST and one 
more CEC in DR site, I combined them in one IODF.I want to know the best 
practice to copy the IODF to each CEC, and also the IOCDs without suffering 
from H/W and S/W mismatch.
Mohamed Gomaa
  

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