I am new to a job and have noticed the following in the server log, which is sometimes accompanied with the arrival of an email saying a deadlock was avoided, no user action is required."I/O is frozen on database xxxxxxx. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup"The server is SQL2014 running on windows server 2012 sp2 64 bit. There is nothing in the event log to suggest a problem and the backup referred to is a third party virtual machine backup process which occurs on an hourly basis. The I\O errors last for about 2 seconds.The network manager says it has been like that since day 1 and not to worry about it, just to monitor the locks.Is the network manager right or should I start arguing and if so what is my best tack?
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