> The answer is, it depends. :-)
>
> If both ldevs are in one volume set, then, the system will see it, as ldev 
> 2, but will not mount it in the current volume set.
> You will need to go into volutil and SCRATCHVOL 2, then re-add ldev 2 to 
> the new system volume set.
>
> NEWVOL mpexl_system_volume_set:member 2
>
> So yes, you will lose all the data.
>
> IF however, Ldev2 is in it's own private volume, say MY_PRIVATE_VOLUME, 
> then no you will not lose the data. But you
> will have to rebuild the accounting structure and pointers on the System 
> volume to point to your private volume.

Its been 10+ years since I did this,
but if ldev2 is part of the system volume and you have data you do want to 
recover,
you should be able to boot up into the ISL and use DISCUTIL to store
off any files onto tape - and once system is up,
use VOLUTIL's command RECOVER to restore them.

I'm am not sure what happens with files that are split between multiple 
drives,
ie: parts on ldev2, and parts on ldev1.

System Utilities Reference Manual    for DISCUTIL ch 6.
Volume Management    for RECOVER ch 4 and 5.

Find them here 
http://www.hpmmsupport.com/information_links/default.aspx#.UkV6e1NHbxq
under System Utilities, Utilities, and Volume Management.

Note that the RECOVER method has only 2 options to restore,
KEEP and NOKEEP. No file selection.

Keven Miller

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