RE: Save while active questions

I was surprised to see they were doing a *SNYCLIB and I agree they should
probably be doing *LIB. In the not too distant future we will be revisiting
everything on that machine because my client is getting ready to change
software vendors but in the meantime, turning the barge one oar stroke at a
time isn't work the effort. :)

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Charles Wilt
Sent: Tuesday, March 1, 2016 1:03 PM
To: Midrange Systems Technical Discussion
Subject: Re: Save while active questions

Well if it's working it's working...

But seems sub optimal...you might consider a SAVACT(*LIB)...

That would mean every object in a single library uses the same checkpoint.
But objects in different libraries might have a different checkpoint.

SAVACT(*SYNCLIB) is useful in a production environment that spans libraries
so that you can ensure all the objects across libraries are at the same
checkpoint. I doubt that level is needed on a development box.

Charles


On Tue, Mar 1, 2016 at 12:48 PM, John R. Smith, Jr. <
smith5646midrange@xxxxxxxxx> wrote:

This is exactly what I needed to know. I guess I never read the
secondary text. Thank you.

As for all of the libraries, it is a dev machine and they turned on
save while active to reduce the amount of time that the developers
would be locked out. On the weekend, the full backup runs for about
11 hours and who knows when it will hit which libraries. This way we
are only locked out for
30 minutes at 04:30 when nobody is on anyhow instead of being locked
out all morning.

Thanks again for the info.

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Charles Wilt
Sent: Monday, February 29, 2016 5:25 PM
To: Midrange Systems Technical Discussion
Subject: Re: Save while active questions

Do you see
CPI3724 - 0 of 3 libraries processed.
CPI3724 - 1 of 3 libraries processed.
CPI3724 - 2 of 3 libraries processed.
CPI3725 - Save-while-active checkpoint processing in progress.
CPI3712 - Save-while-active checkpoint processing complete.


The text for CPI3724 is
Cause . . . . . : The save-while-active operation has now locked the
objects
in 1 libraries. Checkpoint processing will begin when objects in
all 3

libraries have been locked.


vs CPI3725
Cause . . . . . : The save-while-active operation has now locked the
objects
to be saved in all the libraries.


So for the first 30min, the system is allocating all objects in a
given library one library at a time. Are you getting any objects not

saved?

500 libraries is an awful lot for a *SYNCLIB save-while-active.

Are all 500 really active?

You might be better served by creating a SWA control group for the say
5 libraries that are active and the save the others without using SWA.

Charles



On Mon, Feb 29, 2016 at 5:10 PM, John R. Smith, Jr. <
smith5646midrange@xxxxxxxxx> wrote:

We are using BRMS and the control group does not allow me to see
keywords so I'm guessing at what you are asking. If I guessed
wrong, let me know.



PRECHK()

Object pre-check . . . . . . . . . . . . *NO



SAVACT()

Weekly Retain Save

Backup List ASP Activity Object While

Items Type Device SMTWTFS Detail Active

*ALLUSR *SYSBAS *DFTACT *YES *SYNCLIB



SAVACTWAIT()

Save active wait time:

Object locks . . . . . . . . . . . . 120

Pending record changes . . . . . . . 120

Other pending changes . . . . . . . . 120



-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf
Of Charles Wilt
Sent: Monday, February 29, 2016 5:03 PM
To: Midrange Systems Technical Discussion
Subject: Re: Save while active questions



What values do you have for

PRECHK()

SAVACT()

SAVACTWAIT()



Charles



On Mon, Feb 29, 2016 at 4:32 PM, John R. Smith, Jr. <
<mailto:smith5646midrange@xxxxxxxxx> smith5646midrange@xxxxxxxxx> wrote:

We have a backup that is using save while active. The backup
starts

at

04:30 and there are about 500 libraries in the backup. About
05:00,

there is an entry in the joblog "Save-while-active checkpoint

processing in progress". About 5 minutes later there is an entry

Save-while-active checkpoint processing complete.

My question is during the 04:30 - 5:00 window, are the libraries

locked or can the system still function normally? Or, is the only

really unavailable window the 5 minutes at 5:00?

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