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  3. November 2014

Re: Do I loose any queued up Data on Data Queue if system starts IPL

hey Paul

Actually those options don't mention data queues at all. So they're safe, as others have said.

These other queues are not data queues, so far as we care. All these things MIGHT be implemented at base as a *USRQ type.

Vern

On 11/10/2014 3:49 PM, Steinmetz, Paul wrote:
Your Reference to Data Queue,
If you're referring to "user data queues" those jobs will still be in the q after an IPL.
If you referring to some other data queue, then I'm not sure.

There are IPL options, which by default, do NOT clear output and/or data queues

IPL Options
Type choices, press Enter.
System date . . . . . . . . . . . . . . . XX / XX / XX MM / DD / YY
System time . . . . . . . . . . . . . . . XX : XX : XX HH : MM : SS
System time zone . . . . . . . . . . . . Q0000UTC F4 for list
Clear job queues. . . . . . . . . . . . . N Y=Yes, N=No
Clear output queues . . . . . . . . . . . N Y=Yes, N=No
Clear incomplete job logs . . . . . . . . N Y=Yes, N=No
Start print writers . . . . . . . . . . . Y Y=Yes, N=No
Start system to restricted state . . . . N Y=Yes, N=No
Set major system options. . . . . . . . . N Y=Yes, N=No
Define or change system at IPL. . . . . . N Y=Yes, N=No

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of midrange
Sent: Monday, November 10, 2014 4:31 PM
To: 'Midrange Systems Technical Discussion'
Subject: RE: Do I loose any queued up Data on Data Queue if system starts IPL

This is a question that has been asked before (post in 2013).... and not have a definitive answer from existing IBM docs - perhaps (Chuck or Larry or
Pete) others know for sure.
This doc is about various methods of shutdown (PWRDWNSYS and Control Panel) and only says *IMMED is an immed end to all processes, whereas cntrld is a controlled end and any job smart enough to react to that will, but if the cntrld time expires it becomes *immed.

http://www-01.ibm.com/support/docview.wss?uid=nas8N1016455

Even if disk cache not flushed - that's what cache batteries are for??

Since cache size increased my standard has been controlled end of subsystems
to restricted state, followed by PWRDWNSYS *CNTRLD 300 seconds for small
systems & 600 seconds for larger, but that's just a guess/estimation on my part.
Jim Franz


-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of John E
Sent: Monday, November 10, 2014 12:01 PM
To: Midrange Systems Technical Discussion
Subject: Re: Do I loose any queued up Data on Data Queue if system starts IPL

Jim,

All data that is in cache, isn't that always flushed to disk on PWRDWNSYS?

On Mon, Nov 10, 2014 at 5:11 PM, Mohan Eashver <mohankva@xxxxxxxxx> wrote:

Jim,

What you are saying is stop the EDI & then do IPL.
When system is back, whatever was in Data Queue before IPL, will be
there after IPL.
Is this a correct statement ?


----
Regards,
Mohan Eashver


On Mon, Nov 10, 2014 at 10:49 AM, midrange <franz9000@xxxxxxxxx> wrote:

I would like to add to this.
There is risk if your EDI still active at start of PWRDWNSYS, in
comm
(ftp
or web service or ole/odbc, etc) cut off in the middle of a trans,
or any other program abnormally terminated, plus disk cache that is
not yet written. Yes, you will have what's in the queue on disk. At
the point of the actual ipl starting, you EDI should not be active..
We have very active edi, do a careful shutdown of apps, then
subsystems
to
a
restricted state, then a PWRDWNSYS *CNTRLD with enough time for the
OS
to
flush the cache to disk.
Jim Franz

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf
Of rob@xxxxxxxxx
Sent: Monday, November 10, 2014 8:49 AM
To: Midrange Systems Technical Discussion
Subject: Re: Do I loose any queued up Data on Data Queue if system
starts IPL

Much like your output queues, the data continues to stay on your
data queues.


Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600
Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: Mohan Eashver <mohankva@xxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Cc: taylor.edwards@xxxxxxxxxxxxxxxxxxx
Date: 11/10/2014 08:37 AM
Subject: Do I loose any queued up Data on Data Queue if system
starts IPL
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



Hello Midrange Gurus,

Good Monday Morning to you.

I have an EDI system that keeps sending messages to a DataQueue.

What happens if our IBM i operator starts System IPL, when there is
unprocessed data sitting in our Data Queue ?

Do I loose the data or does it stay ?

----
Regards,
Mohan Eashver
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