Re: IFS backup to Disk

[Jim Oberholtzer <midrangel@xxxxxxxxxx>]

Paul:

Assuming the image catalog IFS files do have the *ALWSAV attribute set 
to *YES,  it would.  Most image catalogs are not needed for a recovery 
so I routinely set the the IFS portions of them to *ALWSAV = *NO.  Saves 
time and save space.

To save the image catalog object(s) you would have to:

 SAVOBJ OBJ(*ALL)
        LIB(QUSRSYS)
        DEV(TAPVRT01)
        OBJTYPE(*IMGCLG)

I often times put that at the end of the save script assuming QUSRSYS 
was not included.  Then again an image catalog is really easy to rebuild 
with IBM's new enhancements so you really don't need to save them 
specifically.

The IFS entries for image catalogs regardless of the type being optical 
or tape are almost identical in structure so it really does not matter 
if the type is optical or tape.  I often times will mix both into a 
single directory.  No harm/No foul to do it.  Just pick the appropriate 
files for the Image Catalog itself when you go to create it.

The biggest advantage for the virtual tape overhead is you can treat it 
just like any other tape.  Save files have their own unique qualities.  
Neither technique is wrong, each have strengths and weaknesses.  What's 
important is to have the option and apply it appropriately for the 
situation.  I tend to gravitate towards the virtual tape because I use 
them quite a bit so they are very familiar.

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


On 3/2/2012 11:16 AM, Musselman, Paul wrote:
> Or you could use the SAVSAVFDTA command and copy the data to tape so you can restore directly from the tape.
>
> Do image catalogs and virtual tape get saved along with the rest of the IFS?
>
> Paul E Musselman
> PaulMmn@xxxxxxxxxxxxxxxxxxxx
>
> -----Original Message-----
> From:midrange-l-bounces@xxxxxxxxxxxx  [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jim Oberholtzer
> Sent: Friday, March 02, 2012 10:18 AM
> To: Midrange Systems Technical Discussion
> Subject: Re: IFS backup to Disk
>
> Another alternative would be to create an image catalog and use Virtual
> Tape.  That way the tape image can just be duped to physical tape
> providing for a single step recover directly from the physical tape,
> instead of having to restore the save file and then restore the needed
> object.
>
> --