OK - assuming they are on a late enough version of UniData, the best way
is to use the dbpause to pause the updates, then backup - yes using
mirrors would make that an easier process - then dbresume. If they are
not on a late enough version, then get them to upgrade... (Late enough
in my view would be 6.0 onwards).

If they use mirroring then the process becomes even more
straightforward:

dbpause
break mirror
dbresume
Backup the mirror set

If you use triple mirroring then you maintain data resiliency AND the
ability to do backups.

And in terms of scheduling this - you use the Friday 3-5AM gap of time -
not that the scripted dbpause, break mirror and dbresume should take
more than a few seconds of course!

HTH


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