Index availability during merge

[David Pratt]

Hi. Merging indexes requires that the indexes be closed for the 
operation occur. I am interested in setting up a cron to merge indexes 
that are in use to generate a fresh consolidated index at specific time 
intervals. I don't want the smaller indexes to be taken out of service 
while this occurs. Can someone suggest a strategy that would not result 
in the loss of availability during merges. Does snapshooter fit into 
this scenario, can a safe copy be made while index is running, etc? Many 
thanks.

Regards,
David