Disaster Recovery Best way to restore by ssid

[bertigo]

My problem is to recover ssids which overlap tapes.
We are used to launch the recover in two steps.
First, with the complete ssids sorted by tape (ssid on one tape) and secondly with the "incomplete" ssids sort by tapes (ssids overlap several tapes).
But, It takes a long time, specially with "incomplete" ssids. May be It could be better to launch the 2 recover together.
So, I ask for an advice from someone who has experienced an Disaster Recovery.

 

[605]

Of course you can open 2 CMD/Terminal windows and recover the save sets individually. The GUI does not offer this option.

However, i do not know whether it makes sense to recover the same data at the same time. What will happen in case you recover the same file, just to mention one example.

 

[bertigo]

We don't recover the same data:

TAPE1 picasso 11/19/06 33 GB 3596662932 tb full /mount/data1
TAPE2 picasso 11/19/06 65 GB 3596662932 hb full /mount/data1
TAPE1 picasso 11/20/06 50 GB 2405517407 cb full /mount/tbor1
--> ssid 3596662932 overlaps 2 tapes.

We are used to do this way :
1 recover -S 2405517407 --> use TAPE1
2 recover -S 3596662932 --> use TAPE1 and TAPE2

What happen if we do: recover -S 2405517407 -S 3596662932
During the recover, the 2405517407 ssid will wait for the 3596662932 ssid on TAPE2.
This a very simple case; in fact, we have more than 300 ssids.

 

[605]

That's the problem. Use 2 independent recovry processes. You just start 1 recovery process for 2 save sets. This of course is different.

 

[bertigo]

Of course it's different . but I want to know the impact on the tapes's use and the way Networker handle this 2 ways of recovering -- recovery sorted by tape's use or massive recovery handle by networker.

 

[605]

There is no way to answer this question straight as a lot of factors will influence the general behavior.