Re: getting the changed objects to a cloud partition -- MIDRANGE-L

There are some pretty impressive compression options on the SAV* commands
themselves.
Maybe I'm only used to current versions of the software but check this out:
SAVLIB LIB(ROB) DEV(TAPVRT01) DTACPR(*ZLIB)

On Mon, Jul 17, 2023 at 11:37 AM Wim Jongman via MIDRANGE-L <
midrange-l@xxxxxxxxxxxxxxxxxx> wrote:

Ok, this is what I did in the end.

Scenario:

Did a complete restore from SYS A to SYS B
Started conversion to 7.5 on SYS B
Kept on working on SYS A

The question was how to synchronize A to B for the changes that happened
in the mean time.

The solution I used was the following:

* Do a DSPOBJD of all objects in an outfile.
* Find all the objects that changed after date X
* Collected all the libraries that needed to be synced
* Used SAVRSTCHG for each library to sync the changes (with print output)
* Transferred the printed output of all jobs to a file
* Used some regex scanning for issues
* Fixed the issues that arose

* For the IFS I used SAVRST for the directories that we change. E.g. /home

In the end, it could all be handled by the object connect function and
some elbow grease:

https://www.ibm.com/docs/en/i/7.4?topic=system-objectconnect-function

Cheers, Wim

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of
Gavin Inman
Sent: Wednesday, June 28, 2023 1:46 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: getting the changed objects to a cloud partition

WARNING: This is an external mail. Don't reply, open attachments, or click
links if it looks suspicious.

Yes, that would work, however, the image catalog object is not compressed.

To save FTP time, after you save the objects to the Virtual Tape, save the
virtual tape file to a standard *SAVF with compression Medium. We have
found Medium is the best bang for the time spent compressing and we have
seen as good as 70% compression rates.

Example - if you have a virtual catalog as created below:

|CRTIMGCLG IMGCLG(MYCATALOG) DIR('/MYCATALOGDIRECTORY') CRTDIR(*YES)
ADDVRTVOL(1) PREFIX(ABC) IMGSIZ(100000) TEXT(catalog-description)
TYPE(*TAP)|

CRTSAVF QGPL/MYCATALOG TEXT('MY COMPRESSED SAVE')

SAV DEV('/QSYS.LIB/QGPL.LIB/MYCATALOG.FILE')
OBJ('/MYCATALOGDIRECTORY/ABC01') DTACPR(*MEDIUM)

(FTP QGPL/MYCATALOG to the new system)
(Un-compress)

RST ('QSYS.LIB/QGPL.LIB/MYCATALOG.FILE) OBJ('/MYCATALOGDIRECTORY/ABC01')

Gavin.

On 6/16/2023 1:35 PM, Wim Jongman via MIDRANGE-L wrote:

Hi,

Two weeks ago, we did a complete system save and restore on our new cloud
partition. The thing is configure and now I want to get the changed objects
there.

Since I have no tape device there, I was thinking of creating a virtual
tape as described herehttps://
www.ibm.com/docs/en/i/7.3?topic=media-virtual-tape

Then do a savchgobj *allusr to that tape, get the image catalog to the
other machine, and restore the objects.

Is this the correct workflow?

Cheers, Wim

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