December 2017
Intermediate to advanced
434 pages
10h 14m
English
Content preview from SQL Server 2017 Administrator's Guide
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Data File I/O
The Data File I/O section shows the current flow of data back and forth from every file of every database. The section is depicted in the following screenshot:
We can check the amount of data and realize how big is the data contention of every database and the duration of time spent by SQL Server waiting for data movement completion. We also could compare the amount of data moved from and to files of a certain database to see if the contention is distributed evenly across more files added to the database.
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