Random Delays backing up VMWare Servers with Backup Exec 2012

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http://serverfault.com – Since upgrading to Backup Exec 2012 we have been experiencing a significant increase in backup times. The data throughput is about where it was before, the problem seems to be random delays between each server's backup. When the delay occurs, we'll see the snapshot creation event on the ESX host, then there is an indeterminate amount of time where nothing is happening, then we see the "Symantec Backup" event on the host and the IO starts between the media server and the SAN. The delays can happen at any time, with any server, and there can be more than one server which experiences a delay (HowTos)