I need some other person's 2 cent here... I have 2 EX2010 physical servers in a DAG, SME and NetApp LUNs on both. Now I am starting to have a problem with the backup window not having enough time to finish outside working hours.
When the 2 backup jobs hit each other, where the end of one job doesn't complete before the other one has started, one of the backups fail. If I have the backup running during working hours, it slow e.g. mailbox moves to an unbearable slowness(1-5MB a minute...)
Is it really necessary to run the backup on both nodes?