NB5.1 is between  5.0 MP1 and MP2.It just support some extra platforms.NBU5.0 
MP3 is supporting this platforms to. Since NBU5.1 MP1 will be released at the 
end of this month (and I thing that the 5.1 patches always will be delayed)go 
for NBU 5.0 MP3

stefanos

> We're about to upgrade from NetBackup DataCenter 4.5.
> 
> This list has mentioned problems with the 5.0 release but comments about =
> the 5.0MP1 and 5.0MP2 were better.
> 
> Should we upgrade to 5.0MP3 or 5.1?
> --
> Tell me and I'll forget, show me and I may remember,
> involve me and I'll understand -- Chinese proverb.
> 
> 
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