Re: Save V4R2 to tgtrls V3r2; restore to v3r7

[Dan Bale <dbale@xxxxxxxxx>]

Good question.  By not saving the access paths, we are opening ourselves to the 
real possibility of the system needing days to rebuild access paths when we 
restore the library to the other system.  If we DO save the access paths, will 
the
v3r7 restore them *and* still have to rebuild them (i.e., take even MORE 
time?)?  There was also the issue of whether it would fit on one tape so the 
guy picking up the tape in the morning doesn't have to take the first one out 
and wait for
the second tape to finish, although that likely would not take long.

At this late hour, it appears that we are going to change the files with 
non-critical APs to MAINT(*DLY) before the save tonight, SAVLIB ACCPTH(*NO), 
restore the library on the target system, let the restore rebuild the *IMMED 
access paths
and wait for that to finish before we change all the files with MAINT(*DLY) 
back to MAINT(*IMMED).  Our best guess right now.  At some later date, we'll 
test the v4r4 to v3r2 to v3r7 save-restore to see if access paths get restored 
without
too much elbow grease on the part of the system.

TIA.
- Dan Bale

alan shore wrote:

> Things that make you go HMMMMM.
> Strange as to what target releases you can go back to.
> The question is - does my answer still stand. My answer is - dont know.
> My next question is (and a serious one) - what damage will be done in 
>attempting the procedure, as opposed to what will you NOT achieve by not 
>attempting the procedure?
>
> >>> Dan Bale <dbale@samsa.com> 01/29/02 04:07PM >>>
> Ugghhh.  My mistake, it's not a v4r2 system I'm saving from, it's a v4r4 
>system.  At that level, the only TGTRLS's available are V3R2M0, V4R2M0, 
>V4R3M0, and V4R4M0.
>
> Does your answer still stand in this case?
>
> TIA,
> Dan Bale
>
> alan shore wrote:
>
> > Irrespective of the tgtrls, whenever we save a library to be restored, 
>there is a marked difference (shorter time) between restoring a saved library 
>WITH access paths saved than by restoring a saved library WITHOUT access paths 
>saved.
> > However, here is my question - why are you saving to an earlier version 
>than what you will be restoring to? Any reason why you cannot save to tgtrls 
>v3r7?
> >
> > >>> Dan Bale <dbale@samsa.com> 01/29/02 03:38PM >>>
> > URGENT: We're saving a library on a v4r2 system using tgtrls v3r2 so that it
> > can be restored on a V3r7 system.  If we save the access paths, will they be
> > restored on the v3r7 box without rebuilding them?
> >
> > TIA,
> > Dan Bale