Re: CRTIMGCLG questions

I have to go back to an IBM manual in order to get the image catalog
commands. I don't find the commands intuitive. I don't use them much:

https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_73/rzam4/rzam4pdf.pdf?view=kc


In regard to ADDVRTVOL and related parameters, they add complexity to the
command. As an alternative you can divide the process into 2 steps by
adding the use of the ADDIMGCLGE command.



On Mon, Jun 15, 2020 at 10:21 AM K Crawford <kscx3ksc@xxxxxxxxx> wrote:

I am needing a better understanding of the CRTIMGCLG command.

What I want to do is create a temp location to save some work objects to.
In the past I would just save them to a save file. But it might become a
requirement to put on a tape. So my thought was to use the DUPTAP command
of a virtual tape drive attached to an image catalog. Then the restore, if
needed, would be one step not two. The other part of this if it goes to
tape it will need to be encrypted. We currently use BRMS to do this. So
the thought is to use BRMS for the save command.

My thought is to create a virtual tape device.
CRTDEVTAP DEVD(TAPVRTtst) RSRCNAME(*VRT) ONLINE(*YES) TEXT('Test
Backup')
Create an image catalog attached to this drive.
Then save to it this virtual tape device.
SAVOBJBRM OBJ(TESTOBJ) LIB(TSTLIBRARY) DEV(TAPVRTTST) OBJTYPE(*ALL)

My questions are related to the CRTIMGCLG command. This is the command I
am thinking of using.
CRTIMGCLG IMGCLG(tstCATALOG) DIR('/Test_Backup') CRTDIR(*no)
ADDVRTVOL(*none) PREFIX(tst) IMGSIZ(*mgclgtype) alcstg(*min) TEXT('Test
Backup') TYPE(*TAP)

I do not have a good understanding of these values.
ADDVRTVOL(*none) PREFIX(tst) IMGSIZ(*mgclgtype)

Can anyone shed some light on them?

Thanks

--
Kerwin Crawford
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